Showing papers in "Journal of Plant Nutrition in 2019"
TL;DR: Chelates are compounds that are applied to improve nutrition, especially the micronutrients status of plant tissues as mentioned in this paper, and they have been used to improve the health of plants.
Abstract: Chelates are compounds that are applied to improve nutrition, especially the micronutrients status of plant tissues. During past decades, various chelating agents have been synthesized and introduc...
184 citations
TL;DR: The abiotic stresses like drought, heavy metal and salts directly or indirectly influence the global environmental pollution and decrease the agricultural productivity as mentioned in this paper, and the stress tolerant plant grasps are the ones that are more resistant to these stresses.
Abstract: The abiotic stresses like drought, heavy metal and salts directly or indirectly influence the global environmental pollution and decrease the agricultural productivity. The stress tolerant plant gr...
65 citations
TL;DR: In this article, a field experiment was conducted to evaluate the effect of chitosan nanoparticles (NPs) on wheat under drought stress, where the wheat seeds were sown in plots, and the NPs were added to them through soil and foliar application at tillering, stem elongation, and heading stages.
Abstract: Chitosan and its components have beneficial effects on a wide variety of plant species. Yet, their effects on wheat plants under drought stress are not well known. So, a field experiment was laid out in order to evaluate the effect of chitosan nanoparticles (NPs) on wheat. The wheat seeds were sown in plots. Then, the chitosan NPs were added to them through soil and foliar application at tillering, stem elongation, and heading stages. Results indicated that the drought stress significantly decreased majority of the studied traits compared to the normal irrigation. Application of the NPs especially 90 ppm increased leaf area (LA), relative water content (RWC), chlorophyll content, photosynthesis rate, catalase (CAT), and superoxide dismutase (SOD) activities, yield, and biomass compared to the control. Finally, our results highlight that usage of the chitosan NPs especially 90 ppm can mitigate adverse effects of drought in the wheat under drought stress.
58 citations
TL;DR: Combined application of manures and fertilizers played a pivotal role in the improvement in soil physico-chemical properties, macro and micronutrients distribution and their transformations under d....
Abstract: Combined application of manures and fertilizers played a pivotal role in the improvement in soil physico-chemical properties, macro and micronutrients distribution and their transformations under d...
57 citations
TL;DR: The potential of different micronutrients in seed priming treatments for escalating crop growth, development and grain yield is discussed and its effect within the plant system is considered.
Abstract: The present review article is dealing with the potentiality of micronutrients in terms of seed priming treatment and its effect within the plant system is considered. Since last 3 to 4 deca...
47 citations
TL;DR: In this paper, the effect of glycine amino acid was evaluated on growth characteristics and nutrient uptake of coriander plants under greenhouse conditions, and the treatments were soil applica...
Abstract: In this study, the effect of glycine amino acid was evaluated on growth characteristics and nutrient uptake of coriander plants under greenhouse conditions. The treatments were soil applica...
44 citations
TL;DR: In this paper, the authors investigated the effect of selenium on flowering indices, sex determination of flowers, and yield of cucumber plant under heavy metal stress conditions, and found that the effect was negligible.
Abstract: The present study aimed to investigate the effect of selenium on flowering indices, sex determination of flowers, and yield of cucumber plant under heavy metal stress conditions. Treatments consist...
42 citations
TL;DR: In this article, increased application of inorganic nitrogen has been the key component responsible for growth in cereal production due to continuously increasing application of Nitrogen (N) and its lower use effi ciency.
Abstract: Increased application of inorganic nitrogen has been the key component responsible for growth in cereal production. Due to continuously increasing application of Nitrogen (N) and its lower use effi...
41 citations
TL;DR: Manure urea pellets were produced and their nitrogen release rate was evaluated in soil incubation at different water contents of 90, 75, and 60% soil filed capacity (FC) as mentioned in this paper.
Abstract: Manure urea pellets were produced and their nitrogen release rate was evaluated in soil incubation at different water contents of 90, 75, and 60% soil filed capacity (FC). In another experiment, sweet basil growth was evaluated during eight months (with three shoot harvests) under the pellet application. The nitrogen release and pellet dispersion rates were slow after two months or at lower soil water content (60% FC), but they were significant after four months of soil incubation, or at higher soil water content (75 or particularly 90% FC). Application of pelleted urea reduced plant growth and yield at first harvest than urea treatment. However, at second and particularly at third harvest (and the average of three harvests) significant improvement in growth parameters of SPAD value, leaf area, plant height, shoot fresh weight, pot yield, and` leaf N and K concentrations were achieved by application of pelleted urea fertilization.
40 citations
TL;DR: All three priming agents effectively nullified the deleterious effects of salt stress by improving seed emergence and triggering the physiological attributes of wheat.
Abstract: Salinity stress can be mitigated by using the physiological seed enhancements. Kharchia 65 (salt tolerant) and PI.94341 (salt sensitive) genotypes were evaluated under salt stress (20 dS/m) by vari...
35 citations
TL;DR: Efficacy of 1mM humic and salicylic acids on SC 260 and SC 705 corn seedlings to alleviate drought stress via polyethylene glycol was studied via hydroponics at Shiraz University, Iran as discussed by the authors.
Abstract: Efficacy of 1 mM humic (HA) and salicylic (SC) acids on SC 260 and SC 705 corn seedlings to alleviate drought stress via polyethylene glycol was studied via hydroponics at Shiraz University, Iran i...
TL;DR: Investigation of the effects of different sources of phosphorus treatments on root growth (root length, diameter and dry matter) of barley showed that under P deficiency, the weight of dry root significantly decreased and the total root length of whole plant significantly increased with decrease of root diameter.
Abstract: Roots are the main plant organs that supply nutrients, water, hormones and physical support for the plant. Phosphorus (P) is one of the most limiting and important elements in root growth and crop ...
TL;DR: In this article, Salicylic acid (SA) and thiamin participate in the processes underlying plant adaptations to certa...Boron toxicity is an important environmental constraint that limits crop productivity.
Abstract: Boron (B) toxicity is an important environmental constraint that limits crop productivity. Salicylic acid (SA) and thiamin participate in the processes underlying plant adaptations to certa...
TL;DR: In this article, the effects of foliar application (with constant 0.2% concentration) of chemical NPK (N20:P10:K20) and organic fertilizers of Biomin (an organic aminochelate fertilizer), Humifolin (a hu...
Abstract: In this study, effects of foliar application (with constant 0.2% concentration) of chemical NPK (N20:P10:K20) and organic fertilizers of Biomin (an organic aminochelate fertilizer), Humifolin (a hu...
TL;DR: In this paper, the authors summarize a clearer and practical approach for substituting different materials especially biochar to fulfill the need of modern potting substrate industry and conclude that biochar has the potential to sustain the substrate production on a long-term basis.
Abstract: Plant production in potting substrates provides maximum profit on the applied inputs, and hence, directly improving the socio-economic condition of the grower/nurserymen. The main challenge in this industry is sourcing of materials for their potting substrates. Peat and perlite have been widely preferred materials. However, recently higher prices, more restrictive legislation of many countries and wetland ecosystem destruction through its extraction has limited peat use. Nowadays, producers focus towards peat alternatives that provide good performance, are readily available, inexpensive and environment friendly to attain sustainability in potted plant production. In an effort to grasp sustainability during the last few decades, many industrial and agricultural waste materials were reviewed for their use in potting substrates. In these studies, the major focus remained on material characterization, neglecting their economics, technical aspects and environmental impacts. Thus, switching from peat and perlite to alternatives requires material exploration. In the present review, we summarize a clearer and practical approach for substituting different materials especially biochar to fulfill the need of modern potting substrate industry. Biochar has the potential to sustain the substrate production on a long-term basis.
TL;DR: The application of delivery system based on encapsulation technology shows a promising technique to store and deliver PGPR and the remaining technical challenges of encapsulation systems including insignificant stabilization of PGPR, instability of the environmental and difficulty of their preparation are extensively discussed here.
Abstract: Plant growth promoting rhizobacteria (PGPR) are a group of bacteria that can enhance plant growth. In fact, PGPR are biologically unstable and the bacteria activity degrades over time due t...
TL;DR: In most agricultural areas, crop production relies heavily on the supply of exogenous N fertilizers as mentioned in this paper, and globally, a large amount of nitrogen is a primary nutrient for crop growth.
Abstract: Nitrogen (N) is a primary nutrient for crop growth. In most agricultural areas, crop production relies heavily on the supply of exogenous N fertilizers. Globally, a large amount of nitrogen...
TL;DR: In this article, a 2-ye...Management strategies to minimize nitrogen (N) losses to the atmosphere and water bodies from potato production fields while maintaining tuber yields and quality relies on good N management.
Abstract: Management strategies to minimize nitrogen (N) losses to the atmosphere and water bodies from potato production fields while maintaining tuber yields and quality relies on good N management. A 2-ye...
TL;DR: In this article, the responses of lettuce (Lactuca sativa L. "Arroyo" ) to organic nitrogen (N) fertilizers were investigated in a greenhouse and the results showed that the response was positive.
Abstract: The responses of lettuce (Lactuca sativa L. ‘Arroyo’) to organic nitrogen (N) fertilizers were investigated in a greenhouse. Fertilizers were blood meal (BLO), feather meal (FM), cottonseed meal, a...
TL;DR: In this paper, a study was conducted in the farmer field between the years 2014 and 2015, where three doses of potassium (K) (0, 10, and 20 kg−1) of K2SO4 (50% K2O) fertilizer and 3 doses of humic acid...
Abstract: This study was conducted in the farmer field between the years 2014 and 2015. In this study, 3 doses of potassium (K) (0, 10, and 20 kg da−1) of K2SO4 (50% K2O) fertilizer and 3 doses of humic acid...
TL;DR: In this article, the effects of organic or chemical nutrient solutions on the growth and composition of lettuce (Lactuca sativa L.) in greenhouse production were evaluated using an experimental setup.
Abstract: The objective of this experiment was to assess the effects of organic or chemical nutrient solutions on the growth and composition of lettuce (Lactuca sativa L.) in greenhouse production. Hoagland ...
TL;DR: Inoculation effect of arbuscular mycorrhizal fungi (AMF) on phosphorus transfer from composted dung of cattle with a diet supplemented with powdered rock phosphate (RP) and their successive upt...
Abstract: Inoculation effect of arbuscular mycorrhizal fungi (AMF) on phosphorus (P) transfer from composted dung of cattle with a diet supplemented with powdered rock phosphate (RP) and their successive upt...
TL;DR: In this article, the incorporation of organic residues with urea is proposed as a promising practice for improving soil properties and crop yield in alkaline soils, where nitrogen deficiency is a very common problem.
Abstract: Nitrogen (N) deficiency is a very common problem of alkaline soils. Incorporation of organic residues with urea could be promising practice for improving soil properties and crop yield. Thi...
TL;DR: The presence of a combination of trace amounts of plant hormones such as auxins, cytokinins, gibberellins and humic acids in vermicomposts teas are likely the responsible factor that increased yields of lettuce and tomato in static hydroponics systems with lower concentrations of nutrient solutions.
Abstract: The use of vermicompost water extracts (teas) in horticulture to increase plant growth and yield and suppress pests and diseases, is well documented. However, its utilization and effects in hydropo...
TL;DR: This article aimed to provide the up-to-date knowledge on saffron culture to optimize corm and stigma + style yield and quality in open field and specifically in soil-less and soil-based greenhouse conditions.
Abstract: Saffron (Crocus sativus L.) is a geophyte herbaceous perennial medicinal plant, whose flower’s three style arms plus stigmas are used as the most expensive spice in the world. Saffron is ex...
TL;DR: The results showed that different genotypes react differently to drought stress while drought decreased vegetative and reproductive traits, and olive yield and irrigation management can be improved by applying proper irrigation levels and using tolerant genotypes.
Abstract: Drought is currently one of the most severe abiotic factors limiting agricultural production. The high rates of population growth and global warming are expected to further exacerbate the t...
TL;DR: Silicon (Si) can increase phosphorus (P) use efficiency (PUE) by increasing P availability in the soil and altering P metabolism in the plant, thus resulting in improved yield under low soil P cond... as mentioned in this paper.
Abstract: Silicon (Si) can increase phosphorus (P) use efficiency (PUE) by increasing P availability in the soil and altering P metabolism in the plant, thus resulting in improved yield under low soil P cond...
TL;DR: In this paper, the impact of particle size of biochar is investigated, which is a beneficial soil amendment amongst growers and researchers, however, the impact is yet to be investigated.
Abstract: Biochar has attained significant attention as a beneficial soil amendment amongst growers and researchers. However, the impact of particle size of biochar is yet to be investigated. Here in the pre...
TL;DR: In this paper, the potential protective role of exogenous applications of gibberellin, auxin, citric acid and calcium on the growth and cellular redox state of pea (Pisum s...
Abstract: The present investigation aims to study the potential protective role of exogenous applications of gibberellin, auxin, citric acid and calcium on the growth and cellular redox state of pea (Pisum s...
TL;DR: In this article, a field study determining the efficiency of SPAD and NDVI meters to calculate nitrogen fertilizer recommendations is presented, which is time consuming and costly and therefore, is not suitable for most applications.
Abstract: Present analyses to calculate nitrogen fertilizer recommendations are time consuming and costly. Therefore, a field study determining the efficiency of SPAD and NDVI meters to calculate soi...