Effect of concentrate organic manure (wellgrow grain and wellgrow soil) and NPK improved the growth and yield of wheat Significant improvement in terms of growth parameters like plant height, tillers, dry matter production and productive tillers with application of 120 : 60 : 60 NPK + 300 kg wellgrow soil/ha and at par with application of 120 : 60 : 60 NPK + 300 kg wellgrow grain/ha, treatment receiving 100% NPK + 300 kg wellgrow soil/ha resulted maximum grain yield (4545 kg /ha) Treatment of 100% NPK + 300 kg wellgrow grain/ha maintained higher straw yield (5715 kg/ha) and test weight (4410 g) due to application of 100 % NPK along with 200 kg wellgrow soil/ha whereas it was at par with application of 75 and 100% NPK with both levels of wellgrow formulation DOI: http://dxdoiorg/103329/bjbv44i122738 Bangladesh J Bot 44 (1): 143-146, 2015 (March)

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Residual impact of wellgrow formulation and npk on growth and yield of wheat (triticum aestivum l.)

Depletion of soil fertility is a main problem to sustain agricultural production and productivity in many countries. The use of inorganic or organic fertilizer alone has both positive and negative effects on plant growth, nutrient availa-bility and the soil. Organic fertilizer improves physical and biological activities of soil but they have comparatively low in nutrient content, so larger quantity is required for plant growth. However, inorganic fertilizer is usually immediately and fast containing all necessary nutrients that are directly accessible for plants. But continuous use of inorganic fertilizers alone causes soil organic matter: degradation, soil acidity and environmental pollution. So the integrated nutrient management system is an alternative system for the sustainable and cost-effective management of soil fertility by combined apply of inorganic with organic materials resulting in rising soil fertility and productivity without affecting environment. The objective of the present review is to assess the effect of mixing organic with inorganic fertilizer on soil fertility and productivity. The study revealed that appropriate application of organic with inorganic fertilizers increases the productivity without negative effect on yield quality and improves soil fertility than the values obtained by organic or inorganic fertilizers separately.

Review on: The Effect of Mixing Organic and Inorganic Fertilizer on Productivity and Soil Fertility

Lignocellulosic biofuel has been globally recognized as a renewable energy source with environmental benefits while minimizing the competition between food and fuel supply. Although lignocellulose is a promising renewable feedstock for the sustainable production of transportation fuels, cost-effective conversion technologies are necessary to overcome its inherent recalcitrance that impedes the widespread utilization of lignocellulosic biofuels. Owing to the limited availability of cost-effective and less recalcitrant biomass, the major challenge toward biofuel commercialization includes the biochemical and genetic modification of lignocellulose in energy crops. The development of robust microbial conversion systems capable of converting a broad spectrum of carbon sources derived from biomass feedstocks into a variety of biofuels such as bioethanol, biodiesel, and advanced drop-in biofuels is also of interest in the field of biorefinery. To date, metabolic engineering and synthetic biology have made significant advances in improving the biofuel yield in feedstocks and microbial engineering. The objective of this review is to discuss the technological advances in engineering lignocellulosic biomass as an economically attractive feedstock and robust microbial platforms as a powerful biofuel producer. Finally, integrating engineering strategies and efforts in plant and microbial engineering provides future directions of an interdisciplinary approach to facilitate the commercialization of economically feasible lignocellulosic biofuels.

Recent advances and future directions in plant and yeast engineering to improve lignocellulosic biofuel production

This study was conducted to evaluate the effect of liming (CaCO3 1000 kg ha−1) and application of organic fertilizers (rotted farmyard manure 40 t ha−1) and six different combination of mineral fertilizers: NPK 15:15:15 800 kg ha−1 + KAN (calcium ammonium nitrate) 240 kg ha−1; NPK 15:15:15 400 kg ha−1 + MCB (water-soluble mineral fertilizer NPK 13:11:20 + 2MgO + microelements + humic acid) 300 kg ha−1 + KAN 125 kg ha−1; MCB 400 kg ha−1; MCB 400 kg ha−1 + KMg (water-soluble mineral fertilizer Multi KMg 13:0:43 + 2MgO) 100 kg ha−1; MCB 600 kg ha−1 + KMg 100 kg ha−1 and MCB 800 kg ha−1 + KMg 100 kg ha−1 on yield and other productivity parameters of potato (Kennebec variety). The aim of the research was to optimize the system of potato plant nutrition for maximum profitability in the future potato production on acid soils of mountainous region of Montenegro. The experiments were carried out during 2015 and 2016, on Dystric Cambisols. The results obtained suggested that in both years, the highest values for all studied parameters were measured on plots with combined application of liming, organic and mineral fertilizers. In addition, a significant influence on the increase in the number of tubers per plant, the average tuber weight and the total yield was also demonstrated in all individual trials of potato nutrition, and the interaction of organic manure and mineral fertilizer. Fertilizing with rotted farmyard manure had significantly increased potato productivity, with the effect more pronounced in treatments with liming. The highest number of tubers (6.2 and 7.2), average tuber weight (93.5 g and 101.0 g) and yield (27.6 t ha−1 in 2015 and 34.8 t ha−1 in 2016, respectively) were obtained using combinations of MCB 800 kg ha−1 + KMg 100 kg ha−1 on variants fertilized with rotted farmyard manure and liming. This research is a valuable source of information for potato growers and scientists from this region as the results have shown how fertilization is raising productivity in this environment and its importance in the future potato growing on acid soils in mountainous regions of Montenegro and Western Balkans.

Effects of Liming and Nutrient Management on Yield and Other Parameters of Potato Productivity on Acid Soils in Montenegro

Crop quality and nutrient uptake are considerably influenced by fertilizers inputs and their application rate. Biochar (BC) improves nitrogen uptake and crop productivity. However, its interaction with synthetic and organic fertilizers in calcareous soil is not fully recognized. Therefore, we inspected the role of biochar (0, 10, 20, and 30 t ha–1) in improving N uptake and quality of wheat in a calcareous soil under integrated N management (90, 120, and 150 kg N ha–1) applied each from urea, farmyard manure (FYM) and poultry manure (PM) along with control) in 2 years field experiments. Application of 20 t BC along with 150 kg N ha–1 as poultry manure considerably improved wheat grain protein content (14.57%), grain (62.9%), straw (28.7%), and biological (38.4%) yield, grain, straw, and total N concentration by 14.6, 19.2, and 15.6% and their uptake by 84.6, 48.8, and 72.1%, respectively, over absolute control when averaged across the years. However, their impact was more pronounced in the 2nd year (2016–2017) after application compared to the 1st year (2015–2016). Therefore, for immediate crop benefits, it is recommended to use 20 t BC ha–1 once in 50 years for enhancing the nitrogen use efficiency of fertilizers and crop yield.

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Biochar Optimizes Wheat Quality, Yield, and Nitrogen Acquisition in Low Fertile Calcareous Soil Treated With Organic and Mineral Nitrogen Fertilizers

Recently, the interest in organic farming is increasing among the researchers and farmers due to the advent of high yielding cultivars and escalating fertilizer prices. Application of different organic manures in combination with inorganic fertilizer to wheat crop might give a substitute under field condition. A field experiment was conducted for two consecutive years (2007-09) with the objective to find out the best combination and type of organic and inorganic fertilizers for wheat (Triticum aestivum L.) production. The experiment was laid out in randomized complete block design (RCBD) with three replications. The treatments were: control (T1, no manure), departmental recommendation 128+114+62 NPK Kg ha -1 (T2), farmyard manure @ 10 tons ha -1 at time of seed bed preparation (T3), poultry manure @ 6 tons ha -1 + 128-114-62 Kg ha -1 NPK (T4). At maturity, plant height (cm), spike length (cm), number of spikelets per spike and grain yield from 1m 2 area of randomly selected plants were recorded. Results led to the conclusion that T4 gave the best result with combination of 6 t/ha poultry manure + 128-114-62 kg ha NPK.

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Effect of organic manures with recommended dose of NPK on the performance of wheat (Triticum aestivum L.).

To study the interspecific competition between wheat and gram, a pot experiment was conducted. The experiment comprised nine treatments varying in the density of wheat (with or without bio-power inoculation) and gram plants. The interspecific competition significantly influenced the plant height, lOOO-grain weight, grain yield per plant and grain nitrogen content in wheat plants. For gram plants as well, plant height, lOOO-seed weight, seed yield per plant and seed nitrogen content significantly improved as a result of interspecific competition. Nevertheless, intraspecific competition drastically reduced these parameters for both wheat and gram plants grown in monoculture. Yield components of wheat plants raised from seeds inoculated with bio-power and the gram plants competing with them also significantly improved.

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M. Ishaque

Papers

Effect of organic manures with recommended dose of NPK on the performance of wheat (Triticum aestivum L.).

Interspecific competition between wheat (Triticum aestivum L.) and gram (Cicer arietinum L.) under bio-power application