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Showing papers on "Potassium nitrate published in 2016"


Journal ArticleDOI
TL;DR: In this article, a cupric oxide (CuO) nanoparticle-enhanced nitrate salt system was proposed to improve the thermal conductivity of the pure salt by adding nanoparticles of higher conductivity, such as metallic nanoparticles or nanoparticulate graphite.

133 citations


Journal Article
TL;DR: In this article, a modified photometric procedure was described for the determination of Cr2O3 in feces ashed material is fused in a furnace with a flux of potassium nitrate, sodium carbonate and sodium hydroxide.
Abstract: A modified photometric procedure is described for the determination of Cr2O3 in feces Ashed material is fused in a furnace with a flux of potassium nitrate, sodium carbonate and sodium hydroxide, a...

95 citations


Journal ArticleDOI
TL;DR: The results of this study highlight the differential effects between the type and the amount of nitrogen salts on NR, NiR, GS, and GOGAT activities in wheat seedlings while potassium nitrate being more effective.
Abstract: The objective of this study was to examine the expression and activity of nitrate reductase (NR, EC 1.7.1.1), nitrite reductase (NiR, EC 1.7.2.2), glutamine synthetase (GS, EC 6.3.1.2), and glutamate synthase (GOGAT, EC 1.4.7.1) in response to potassium nitrate, ammonium chloride, and ammonium nitrate in nitrogen-starved wheat seedlings. Plants were grown in standard nutrient solution for 17 days and then subjected to nitrogen starvation for 7 days. The starved plants were supplied with potassium nitrate ammonium nitrate and ammonium chloride (50 mM) for 4 days and the leaves were harvested. The relative expression of NR, NiR, GS, and GOGAT as well as the enzyme activities were investigated. Nitrogen starvation caused a significant decrease both in transcript levels and in NR, NiR, GS, and GOGAT activities. Potassium nitrate and ammonium nitrate treatments restored NR, NiR, GS, and GOGAT expressions and activities. Ammonium chloride increased only the expressions and activities of GS and GOGAT in a dose-dependent manner. The results of our study highlight the differential effects between the type and the amount of nitrogen salts on NR, NiR, GS, and GOGAT activities in wheat seedlings while potassium nitrate being more effective.

64 citations


Journal ArticleDOI
TL;DR: For both solar salt and resultant nanofluids, differential scanning calorimetry was employed to measure the thermal storage properties, including characteristic temperatures of phase change, startup heat, and specific heat capacity (SHC).
Abstract: In this study, the effect of concentration of nanoparticles on the thermal storage properties of molten nitrate salt-based nanofluids with graphene nanoplatelets (GNPs) was investigated. Solar salt consisting of sodium nitrate and potassium nitrate was utilized as the base material for the nanofluids. Homogeneous dispersion of GNPs within the solar salt was observed through scanning electron microscopy analysis. For both solar salt and resultant nanofluids, differential scanning calorimetry was employed to measure the thermal storage properties, including characteristic temperatures of phase change, startup heat, and specific heat capacity (SHC). A maximum increase of 16.7 % in SHC at the liquid phase was found at an optimal concentration of 1 wt% of GNPs. At the same concentration, the onset temperature decreased by 10.4 °C, the endset temperature decreased by 4.7 °C, and the startup heat decreased by 9 %.

49 citations


Journal ArticleDOI
TL;DR: TiO2 nanoparticles (average particle size 16 nm) were successfully produced in molten salt phase and were showed to significantly enhance the specific heat capacity of a binary eutectic mixture of sodium and potassium nitrate (60/40) by 5.4% and 7.5% respectively.
Abstract: In this study, TiO2 nanoparticles (average particle size 16 nm) were successfully produced in molten salt phase and were showed to significantly enhance the specific heat capacity of a binary eutectic mixture of sodium and potassium nitrate (60/40) by 5.4 % at 390 °C and 7.5 % at 445 °C for 3.0 wt% of precursors used. The objective of this research was to develop a cost-effective alternate method of production which is potentially scalable, as current techniques utilized are not economically viable for large quantities. Enhancing the specific heat capacity of molten salt would promote more competitive pricing for electricity production by concentrating solar power plant. Here, a simple precursor (TiOSO4) was added to a binary eutectic mixture of potassium and sodium nitrate, heated to 450 °C, and cooled to witness the production of nanoparticles.

47 citations


Journal ArticleDOI
TL;DR: In this article, a metathesis electrodialysis (MED) system for the conversion of potassium nitrate from potassium chloride is developed, which is carried out in recirculation mode using a four compartment electroconversion unit of 200 cm2 effective membrane area with 10 cell pairs.
Abstract: A metathesis electrodialysis (MED) system for the conversion of potassium nitrate from potassium chloride is developed. The experiments are carried out in recirculation mode using a four compartment electro-conversion unit of 200 cm2 effective membrane area with 10 cell pairs. The cation exchange membrane and anion exchange membrane used for the present study are converted from a styrene divinylbenzene based interpolymer film by sulfonation and chloromethylation followed by amination, respectively. Membranes are characterized by means of chemical, mechanical, and thermal properties. Membranes show excellent electrochemical properties with adequate thermal and mechanical stability. About 97% conversion of potassium nitrate is achieved during the sets of experiments with high product purity (99%). Four different applied potentials (1.5, 2, 2.5, and 3 V/cell pair) are used during different sets of experiments in metathesis electrodialysis, out of which 2 V/cell pair is found to be more efficient potential wi...

31 citations


Journal ArticleDOI
TL;DR: In this paper, the process of particle formation from evaporating droplets containing more than one solute was studied and two-component microparticles were produced using a piezoceramic dispenser with an inner diameter of 30µm.
Abstract: The process of particle formation from evaporating droplets containing more than one solute was studied. Two-component microparticles were produced using a piezoceramic dispenser with an inner diameter of 30 µm. Initial droplets had a diameter in the range of 70–85 µm and contained sodium nitrate and potassium nitrate in different molar ratios of 30:70, 50:50, and 70:30, corresponding to weight ratios of 26.5:73.5, 45.7:54.3, and 66.2:33.8, in the form of aqueous solutions with initial concentrations of 1 or 10 mg/ml. The monodisperse droplets were dried in a dry laminar gas flow with temperatures of 50°C or 100°C. Different initial conditions affected the particle formation process and the particle morphology. The diameter of the final dried microparticles ranged from 4 to 10 µm. Their density varied from 1250 to 1950 mg/ml. The formulation and process conditions determined the distribution of chemical components in the dried microparticles, especially their surface composition as determined by e...

31 citations


Journal ArticleDOI
TL;DR: In this paper, three oxidants, hypochlorous acid, chlorate and nitrate, were assessed for their ability to oxidise chalcopyrite (CuFeS2).

27 citations


Journal ArticleDOI
TL;DR: A detailed atomic-level investigation of hydrogen Bond rearrangement dynamics of water in aqueous KNO3 solution is performed to unearth two distinct mechanisms of hydrogen bond exchange that are instrumental to promote these jump motions of nitrate ions.
Abstract: A nitrate ion (NO3-) with its trigonal planar geometry and charges distributed among nitrogen and oxygen atoms can couple to the extensive hydrogen bond network of water to give rise to unique dynamical characteristics. We carry out detailed atomistic simulations and theoretical analyses to investigate these aspects and report certain interesting findings. We find that the nitrate ions in aqueous potassium nitrate solution exhibit large amplitude rotational jump motions that are coupled to the hydrogen bond rearrangement dynamics of the surrounding water molecules. The jump motion of nitrate ions bears certain similarities to the Laage-Hynes mechanism of rotational jump motions of tagged water molecules in neat liquid water. We perform a detailed atomic-level investigation of hydrogen bond rearrangement dynamics of water in aqueous KNO3 solution to unearth two distinct mechanisms of hydrogen bond exchange that are instrumental to promote these jump motions of nitrate ions. As observed in an earlier study by Xie et al., in the first mechanism, after breaking a hydrogen bond with nitrate ion, water forms a new hydrogen bond with a water molecule, whereas the second mechanism involves just a switching of hydrogen bond between the two oxygen atoms of the same nitrate ion (W. J. Xie et al., J. Chem. Phys. 143, 224504 (2015)). The magnitude as well as nature of the reorientational jump of nitrate ion for the two mechanisms is different. In the first mechanism, nitrate ion predominantly undergoes out-of-plane rotation, while in the second mechanism, in-plane reorientation of NO3- is favourable. These have been deduced by computing the torque on the nitrate ion during the hydrogen bond switching event. We have defined and computed the time correlation function for coupled reorientational jump of nitrate and water and obtained the associated relaxation time which is also different for the two mechanisms. These results provide insight into the relation between the coupled reorientational jump dynamics of solute and solvent molecules. Published by AIP Publishing.

25 citations


Journal ArticleDOI
TL;DR: In this paper, the applicability of KNO3 synthesis by electrodialysis metathesis (ED-M) following: NaNO3+K2SO4→ KNO 3+Na2SO 4 reaction scheme using Ralex PP membranes was examined.

25 citations


Journal Article
TL;DR: In this article, the effect of foliar application of K as potassium nitrate (KNO3) ability to mitigate the negative impacts of salinity on coriander (Coriander sativum L.) plants was investigated.
Abstract: This investigation was carried out to study the effect of foliar application of K as potassium nitrate (KNO3) ability to mitigate the negative impacts of salinity on coriander (Coriander sativum L.) plants. In a greenhouse condition we used three levels of NaCl (0, 40 and 80 mM) applied to the growth medium and three levels of K as KNO3 (0, 50 and 100 mM) adjusted two times as a foliar spray on the plants. Salt stress affected adversely the growth rate, relative content of leaf water, the plant contents of protein and chlorophyll, attributes of gas exchange containing net CO2 assimilation rate, transpiration rate, stomatal conductance and substomatal CO2 concentration, essential oil content and leaf K+, Mg2+, P, Ca2+, N as well as Na+/K+ ratio, while it enhanced the electrolyte leakage, the plant contents of proline and Na+. It can be concluded that the tested parameters were generally positively affected by the foliar application of the KNO3 under saline and control conditions. Supplied with KNO3 treatment significantly showed better tolerance towards salinity. This can be explained by the positive effects of all external KNO3 application on the membrane permeability, photosynthetic activities, relative water content and nutrients balance and concentration under salinity stress conditions.

Journal ArticleDOI
TL;DR: In this article, the solubility of l -proline in aqueous sodium chloride (NaCl), sodium nitrate (NaNO 3 ), potassium chloride (KCl), and potassium nitrate(KNO 3 ) solutions were determined in five equidistant temperatures by using an analytical "gravimetric" method.

Journal ArticleDOI
27 Dec 2016-Toxics
TL;DR: KNO3 and KCl were the most toxic substances and urea the least toxic among the tested substances, and it was not possible to establish the most sensitive species since, for KCl, the fish were more susceptible to the fertilizer and the snail to the reagent, while for KNO3 the opposite was observed.
Abstract: This study aimed to analyze the ecotoxicity of nitrogen-, phosphorus-, and potassium-based compounds to organisms of two different trophic levels in order to compare the toxic effect between high-purity substances and these substances as components of fertilizers. Dilutions were made with the fertilizers' potassium chloride, potassium nitrate, superphosphate, urea, and their equivalent reagents, to conduct assays to establish the acute lethal concentration for half of the population (LC50). Ten individuals of the benthic snail Biomphalaria glabrata and the fish Danio rerio were exposed to each concentration of tested compounds. As a result, the toxicity levels of potassium chloride, potassium nitrate, and urea were obtained for B. glabrata and D. rerio, with the fish being more susceptible to potassium chloride in the fertilizer and the snail to potassium nitrate and urea, in both commercial and reagent forms. Regarding superphosphate, no significant toxicity was found. This study concluded that among the tested substances, KNO₃ and KCl were the most toxic substances and urea the least toxic. It was not possible to establish the most sensitive species since, for KCl, the fish were more susceptible to the fertilizer and the snail to the reagent, while for KNO₃ the opposite was observed.

Journal ArticleDOI
TL;DR: In this article, the effect of foliar applications of nitrogen compounds (potassium nitrate, urea and calcium nitrate) on physio-biochemical attributes in sugarcane plants (CoLk 94184) subjected to waterlogging was assessed.
Abstract: Present study was aimed to assess the effect of foliar applications of nitrogen compounds (potassium nitrate, urea and calcium nitrate) on physio-biochemical attributes in sugarcane plants (Saccharum spp. hybrids, CoLk 94184) subjected to waterlogging. Single bud setts were planted in earthen pots filled with soil. The treatments included control (T1), waterlogged (WL) (T2), WL + potassium nitrate (0.5 %) (T3), WL + urea (0.3 %) (T4) and WL + calcium nitrate (0.4 %) (T5). Waterlogging was imposed by placing planted pot into a larger plastic bucket and filling it with water up to 2 cm above the soil surface. After 2, 6 and 10 weeks of waterlogging, plants were sampled for growth, biochemical and molecular studies. Results obtained indicated decrease in shoot weight, leaf area and activity of nitrate reductase (NR) and increase in root weight, plant height, MDA, proline contents and peroxidase activity due to waterlogging compared to control plants. As compared to waterlogged treatment (T2), application of nitrogen compounds increased leaf area, shoot weight and NR activity and decreased MDA content. Alcohol dehydrogenase (ADH) gene expression was up-regulated due to waterlogging (T2) and WL + nitrogen compounds in both leaf and root tissues; increase was highest in leaves of WL + urea (T4) and roots of WL + calcium nitrate treatment. Findings suggested beneficial effect of all tested nitrogen compounds on growth and biochemical attributes under waterlogged condition.

Patent
21 Sep 2016
TL;DR: In this article, an insecticide-fertilizer particulate agent is described and a preparation method for its use in a crop sowing period and can be used for preventing underground pests and diseases at the rootstocks of crops.
Abstract: The present invention discloses an insecticide-fertilizer particulate agent and a preparation method thereof. The insecticide-fertilizer particulate agent comprises an insecticide, a bactericide, a fertilizer and an auxiliary agent. The insecticide is composed of one or more components selected from diazinon, thiamethoxam, imidacloprid, clothianidin, chlopyrifos, phoxim, carbofuran and carbosulfan. The bactericide is composed of one or more components selected from azoxystrobin, pyraclostrobin, fludioxonil, metalaxyl, methylimidazole bacteria aniline, thifluzamide and mancozeb. The fertilizer is composed of one or more components selected from urea, ammonium sulfate, potassium sulfate, potassium chloride, monoammonium phosphate, diammonium phosphate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, ammonium polyphosphate, potassium nitrate, zinc sulfate, manganese sulfate, magnesium sulfate, borax, boric acid, ferrous sulfate, copper sulfate, ammonium molybdate, ethylene diamine tetraacetic acid, calcium nitrate, potassium humate, organic matter, amino acid and soybean meal. The insecticide-fertilizer particulate agent is applied during the crop sowing period and can be used for preventing and controlling crop underground pests and diseases at the rootstocks of crops.

Patent
13 Apr 2016
TL;DR: In this article, a sulfur-free shoot charge for fireworks is proposed, in which the grain sizes of the raw materials are 200-300 mesh, with a mass ratio of (50-70) to (20-40), and an ignition temperature of 423 DEG C, moisture absorption ratio of 0.87%.
Abstract: The invention provides a sulfur-free shoot charge for fireworks and a preparation method thereof. The sulfur-free shoot charge for fireworks comprises potassium perchlorate, potassium hydrogen terephthalate, potassium nitrate, charcoal and phenolic resin in a mass ratio of (50-70) to (20-40) to (4-6) to (3-5) to (0.5-1.5), wherein the grain sizes of the raw materials are 200-300 mesh. The invention also provides the preparation method of the sulfur-free shoot charge for fireworks. Experiments prove that through determination under certain conditions, the product of the sulfur-free shoot charge for fireworks has friction sensitivity of 0-18%, impact sensitivity of 0, ignition temperature of 423 DEG C, moisture absorption ratio of 0.87% and good 48-hour thermal stability at 75 DEG C.

Patent
12 Oct 2016
TL;DR: The tree nutrient solution has the advantages that the survival rate of large transplanted trees can be greatly increased, the tree nutrients solution has a good rejuvenation effect on trees which are not transplanted and are weak in vigor, and the tree solution is nutrient, safe, capable of being quickly absorbed by trunks, supplementing nutrition and promoting development of root systems and good in use effect as discussed by the authors.
Abstract: The invention discloses a tree nutrient solution and relates to the technical field of tree cultivation The tree nutrient solution is prepared from, by weight, 1-2 parts of potassium nitrate, 01-05 part of ammonium phosphate, 01-05 part of disodium edetate dehydrate, 01-02 part of ferrous sulfate, 01-02 part of vitamin B, 01-05 part of sodium nitrophenolate, 1-2 parts of fulvic acid, 1-2 parts of indolebutyric acid, 1-5 parts of gibberellin, 2-5 parts of chitosan, 4-8 parts of potassium hydroxide, 2-5 parts of ferric chloride, 2-6 parts of fulvic acid, 4-7 parts of glucose, 3-5 parts of calcium nitrate, 6-9 parts of citric acid, 7-9 parts of magnesium sulfate and 40-60 parts of water The tree nutrient solution has the advantages that the survival rate of large transplanted trees can be greatly increased, the tree nutrient solution has a good rejuvenation effect on trees which are not transplanted and are weak in vigor, and the tree nutrient solution is nutrient, safe, capable of being quickly absorbed by trunks, supplementing nutrition and promoting development of root systems and good in use effect

Patent
12 Oct 2016
TL;DR: In this article, a special nutrient solution for hydroponics of black tomatoes is described, where the main components of the nutrient solution contain calcium nitrate, potassium nitrate and monopotassium phosphate.
Abstract: The invention relates to the field of nutrient solutions for soilless culture, in particular to a special nutrient solution for hydroponics of black tomatoes. The nutrient solution suitable for hydroponics of the black tomatoes is prepared from water, macroelements, secondary elements, trace elements and organic nutrients through blending according to growth characteristics of the black tomatoes, and the component ratio of the nutrient solution is reasonably distributed according to characteristics of different growth stages including a seedling stage, a growth stage, a flowering stage, a fruiting stage and the like of the black tomatoes; main components of the nutrient solution contain calcium nitrate, potassium nitrate, monopotassium phosphate, ammonium nitrate, magnesium sulfate, boric acid, sodium molybdate, manganese sulfate, zinc sulfate, copper sulfate, EDTA (ethylenediaminetetraacetic acid)-FeNa2, compound amino acid, fulvic acid, natural alginic acid and multi-vitamin. The special nutrient solution has the beneficial effects as follows: a blank of the special nutrient solution for the black tomatoes is filled up; the nutrient solution is subdivided to different growth stages, and the nutrients are reasonable and balanced; lack of nutrition and waste of nutrition can be avoided with the application of the nutrient solution, the nutrients in the black tomatoes are optimized, and the yield of the black tomatoes is increased.

Patent
06 Jul 2016
TL;DR: In this article, a leaf vegetable water planting nutrient solution and a preparation method of the solution is described. But the method is not suitable for the high production cost and high nitrate content of water planting vegetables.
Abstract: The invention belongs to vegetable water planting nutrient solutions, and in particular discloses a leaf vegetable water planting nutrient solution and a preparation method thereof The leaf vegetable water planting nutrient solution is prepared from effective amounts of calcium nitrate, potassium nitrate, monopotassium phosphate, magnesium sulfate, ferrochel, sodium nitrate, boric acid, sodium molybdate, zinc sulfate, manganese sulfate and sodium chloride which are dissolved in water and are compounded together By adopting the leaf vegetable water planting nutrient solution, the problems that conventional water planting vegetable is high in both production cost and nitrate content are solved, and the leaf vegetable water planting nutrient solution has the advantages that the nutrient solution is easy to prepare and low in cost, various biological indexes and qualities of planted water planting vegetables are remarkably prior to those of control groups, the content of nitrate meets the national standard and the standard of green pollution-free vegetables, and the like

Patent
13 Apr 2016
TL;DR: In this paper, a plant nutrient solution is described by being prepared from potassium nitrate, ammonium nitrate and ammonium dihydrogen phosphate, and deionized water.
Abstract: The invention provides a plant nutrient solution formula. The plant nutrient solution is characterized by being prepared from potassium nitrate, ammonium nitrate, ammonium dihydrogen phosphate, calcium nitrate, manganese sulfate, nitrate nitrogen, magnesium oxide, phosphoric anhydride, zinc sulfate, ferric citrate, boric acid, sodium molybdate, sodium iodide, vitamins, humic acid, copper sulfate and deionized water. The formula is reasonable, the plant nutrient solution is a culture solution which contains nutrient elements suitable for plant growth and has a proper pH value, nutrient substances are comprehensive and balanced, and nutrients needed in the growing period can be provided for herbaceous plants; after the plant nutrient solution is used, herbaceous plants grow rapidly with luxuriant foliage and have dark green leaves, and the plant nutrient solution is suitable for being widely used and enables plants to grow rapidly; furthermore, all the raw materials of the plant nutrient solution are common raw materials available on the market, and thus the preparation cost is low.

Journal ArticleDOI
TL;DR: Cilj istraživanja bio je utvrditi ucinkovitost razlicitih metoda prekida dormantnosti sjemena sirka (Sorghum halepense (L.) Pers.
Abstract: The aim of the research was to determine the effectiveness of various methods for breaking seed dormancy of weed species Johnson grass (Sorghum halepense (L.) Pers.) and their influence on germination and seedlings growth. Beside control treatment, eight treatments for breaking dormancy of seeds were applied: seed immersion in distilled water for 24 hours; seed immersion in water at 60 °C for 1 hour; immersion in a 0.2% solution of potassium nitrate for 24 hours; immersion in 2% solution of sodium hypochlorite for 8 hours; treatments with concentrated sulphuric acid for 5 and 10 minutes; treatment with concentrated sulphuric acid for 5 minutes and germination in darkness; and combined treatment of sulphuric acid (5 minutes) and 1.5% potassium nitrate solution (2 hours). Average germination of Johnson grass seeds in control treatment was very low, only 2.8%. All dormancy breaking treatments increased seed germination and the highest germination was observed in treatment with combination of sulphuric acid and potassium nitrate (35.0%) and treatment with 2% sodium hypochlorite (30.6%). However, sodium hypochlorite reduced root length of seedlings for 40.9% compared to control, while all treatments had a positive effect on Johnson grass shoot length. Total seedlings length was the highest when seeds were treated for 5 minutes with sulphuric acid. None of the treatments showed significant effect on Johnson grass seedlings fresh weight. Seed germinated fastest in treatment with a combination of sulphuric acid and potassium nitrate (4.58 days), and slowest when seeds were immersed in water (8.16 days) and in the 2% solution of sodium hypochlorite (8.92 days).


Patent
10 Aug 2016
TL;DR: In this paper, a water-soluble fertilizer with a plant growth regulating function and a production method is described, which is made from the following raw materials: phosphorus ammonium nitrate, potassium nitrogen, dihydrogen phosphate, fulvic acid, EDTA chelated trace elements, a seaweed extract and indole potassium butyrate.
Abstract: The invention discloses a water-soluble fertilizer with a plant growth regulating function and a production method thereof, and belongs to the technical field of water-soluble fertilizers The water-soluble fertilizer is made from the following raw materials: phosphorus ammonium nitrate, potassium nitrate, potassium dihydrogen phosphate, fulvic acid, EDTA chelated trace elements, a seaweed extract, and indole potassium butyrate Compared with the prior art, the water-soluble fertilizer provided by the invention has the advantages of balanced and stable nutrients, good water solubility, scientific formula, improvement on soil, and high fertilizer utilization rate, and is in line with the law of the growth of crops

Patent
16 Mar 2016
TL;DR: In this paper, a liquid fertilizer and a preparation method for its preparation is described, which is suitable for modern agricultural fertilizer application technology and has obvious effects on stable yield and high yield of crops and keeping of excellent characteristics of varieties.
Abstract: The invention discloses a liquid fertilizer and a preparation method therefor. The liquid fertilizer is prepared from the following raw materials, by weight, 10-20 parts of microbial fermentation broth, 130-210 parts of urea, 145-205 parts of water-soluble ammonium polyphosphate, 150-200 parts of potassium phosphate, 45-70 parts of potassium nitrate, 20-50 parts of potassium chloride, 3-60 parts of ammonium dihydrogen phosphate, 3.5-6.5 parts of boric acid, 5-10 parts of chelating zinc, 4-8 parts of chelating iron, and 365-420 parts of water. The liquid fertilizer has a high nutrient content and can be absorbed by crops directly, absorption and utilization of the fertilizer is raised, capabilities of drought resistance, high temperature resistance, cold resistance, disease resistance, salt resistance, lodging resistance and the like of crops are raised, and the liquid fertilizer has obvious effects on stable yield and high yield of crops and keeping of excellent characteristics of varieties and is suitable for modern agricultural fertilizer application technology.

Patent
13 Jan 2016
TL;DR: The Chenopodium quinoa willd high-yield cultivation method comprises following steps: (1) seeds are processed, wherein a seed soaking agent is prepared by mixing spinach juice, rotten banana, honey, potassium nitrate, calcium carbonate, sodium chloride, ammonium phosphate, potassium sulphate, ferrous sulfate and ammonium hydrogen carbonate as mentioned in this paper, 50% carbendazim, chitosan, and 1L of tap water.
Abstract: The invention provides a Chenopodium quinoa willd high-yield cultivation method. The Chenopodium quinoa willd high-yield cultivation method is capable of increasing Chenopodium quinoa willd yield and improving grain quality. The Chenopodium quinoa willd high-yield cultivation method comprises following steps: (1) seeds are processed, wherein a seed soaking agent is prepared by mixing spinach juice, rotten banana, honey, potassium nitrate, calcium carbonate, sodium chloride, ammonium phosphate, potassium sulphate, ferrous sulfate, ammonium hydrogen carbonate, glycine, glutamic acid, copper sulfate, ammonium molybdate, 50% carbendazim, chitosan, and 1L of tap water; (2) fine tilling and soil preparation are carried out before seeding, and a base fertilizer is applied; (3) seeding is carried out in 10 days after Grain Rain, seed sowing amount is controlled to be 400g per mu, line spacing is controlled to be 45 to 50cm, and seeding depth is controlled to be 1 to 2cm; (4) top application is carried out, wherein the fertilizer comprises urea, potassium chloride, ammonium molybdate, radix stemonae powder, Chinese prickly ash powder, lonicera japonica powder, dried silkworm excrement, fennel powder, garlic powder, sweet potato powder, pine needle powder, and ferrous sulfate; and (5) harvesting is carried out in 100 to 200 days after seeding.

Patent
20 Apr 2016
TL;DR: In this paper, a compound fertilizer special for the hickories is prepared from, by weight, 30%-40% of organic fertilizer, 8%-12% of urea, 15%-20% of monoammonium phosphate, 20%-30% of potassium nitrate, 1%-2% of borax, 1.5% of gamma-polyglutamic acid and the balance auxiliary.
Abstract: The invention discloses a compound fertilizer special for hickories. The compound fertilizer special for the hickories is prepared from, by weight, 30%-40% of organic fertilizer, 8%-12% of urea, 15%-20% of monoammonium phosphate, 20%-30% of potassium nitrate, 1%-2% of borax, 1%-2% of copper sulfate, 1%-2% of zinc sulfate, 0.8%-1.2% of ferrous sulfate, 0.1%-0.5% of gamma-polyglutamic acid and the balance auxiliary. The organic fertilizer is obtained by mixing duck manure, straw, hickory nut shells, rice chaff and an EM bacterial fermenting agent through fermentation, and the auxiliary is obtained by mixing attapulgite powder and modified cassava powder. According to the compound fertilizer, the organic matter content is larger than or equal to 15 wt%, the sum of the content of nitrogen, phosphorus and potassium is larger than or equal to 30 wt%, the content of nitrate nitrogen is larger than or equal to 4 wt%, the compound fertilizer can effectively improve soil properties, optimize ecological environment, facilitate growth of the hickories, enhance the tree vigor and gain stress tolerance, and the multiple purposes of environment friendliness, production increasing and effect increasing are achieved.

Patent
06 Jan 2016
TL;DR: In this article, a low-melting-point nano molten salt heat transfer and storage medium is prepared from lowmelting point mixed molten salt and nanoparticles in a composite mode.
Abstract: The invention discloses a low-melting-point nano molten salt heat transfer and storage medium and a preparation method and belongs to the technical field of physical heat transfer and energy storage in advanced technologies. The low-melting-point nano molten salt heat transfer and storage medium is prepared from low-melting-point mixed molten salt and nanoparticles in a composite mode. The low-melting-point mixed molten salt is mainly composed of potassium nitrate, sodium nitrate, calcium nitrate and lithium nitrate. The nanoparticles are nanoparticles of metallic oxide or nonmetallic oxide. According to the novel low-melting-point nano molten salt prepared through the method, the melting point is 80-130 DEG C, the decomposition temperature is approximately 600 DEG C, and compared with the low-melting-point mixed molten salt, the using temperature range of the low-melting-point nano molten salt does not change greatly, but the specific heat is improved remarkably by about 10-60%.

Journal ArticleDOI
TL;DR: In this paper, the authors explored the possibility of using inorganic salts for temperature calibration of Differential Scanning Calorimeters (DSC) on cooling and found that these salts crystallize at almost the same temperature, at which they melt, meaning that they do not practically supercool.

Journal ArticleDOI
TL;DR: In this article, the phase composition and structural properties of KNO3 and its heterogeneous composites with nanometer-sized powder of aluminum oxide Al2O3 have been studied by X-ray diffraction at various concentrations of an Al 2O3 nanopowder.
Abstract: The phase composition and the structural properties of potassium nitrate KNO3 and its heterogeneous composites with nanometer-sized powder of aluminum oxide Al2O3 have been studied by X-ray diffraction at various concentrations of an Al2O3 nanopowder. It is found that, in the (1–x)KNO3 + xAl2O3 nanocomposites, additional high-temperature rhombohedral phase of potassium nitrate (phase III) with lattice parameters a = 5.4644 A and c = 9.0842 A. With increasing concentration of Al2O3 nanopowder, the content of the main potassium nitrate phase (phase II) is found to significantly decrease, and the relative fraction of the phase III in the total content of the nitrate in the composite composition increases. This phase is assumed to be “frozen” in the nanocomposite at the KNO3–Al2O3 interface. The estimated size of KNO3 crystallites in the phase III is more than 20 nm.

Patent
21 Dec 2016
TL;DR: In this article, a liquid fertilizer and a preparation method for its preparation is described. But the preparation method is not described, only the liquid fertilizer is mainly prepared from, by weight, urea ammonium nitrate solution 20%-45%, liquid ammonium polyphosphate 10%-40%, potash fertilizer 10%-20, boric acid 0.6%-1%, compound amino acid chelated microelement 4%-8, synergistic agent 0.1%-1% and the balance water.
Abstract: The invention discloses a liquid fertilizer and a preparation method thereof. The liquid fertilizer is mainly prepared from, by weight, urea ammonium nitrate solution 20%-45%, liquid ammonium polyphosphate 10%-40%, potash fertilizer 10%-20%, boric acid 0.6%-1%, compound amino acid chelated microelement 4%-8%, synergistic agent 0.1%-1% and the balance water. The potash fertilizer is one or more of potassium nitrate, potassium chloride, potassium sulfate, potassium pyrophosphate and monopotassium phosphate. The compound amino acid chelated microelement is prepared by a compound amino acid chelate and sulfate through chelating reaction. The materials in the liquid fertilizer are not only environmentally friendly and easy to obtain, but also can provide a variety of nutrients essential for plants effectively. In addition, the utilization rate of the liquid fertilizer nutrients and the production efficiency are greatly improved, and the liquid fertilizer has multiple functions such as soil improvement.