Available nitrogen
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Ebook "Nutrient use efficiency in plants: Concepts and approaches" presents a broad overview of topics related to improvement of nutrient use efficiency of crops. Nutrient use efficiency (NUE) is a measure of how well plants use the available mineral nutrients. It can be defined as yield (biomass) per unit input (fertilizer, nutrient content). NUE is a complex trait: it depends on the ability to take up the nutrients from the soil, but also on transport, storage, mobilization, usage within the plant, and even on the environment.
287p manmanthanhla0201 26-02-2024 1 1 Download
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In this research, automobile wastewater treatment was performed using the Hybrid system (Anaerobic-Aerobic) with coral media. The coral media is not only cheap, available but also gives high efficiency of COD and Total Kjeldahl Nitrogen removal due to its pore structure. The inlet and outlet samples were collected and analyzed daily.
5p vidoctorstrange 06-05-2023 5 4 Download
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The purpose of this study was to apply the modified Kostiakov method to determine the soil infiltration rate and permeated water amount of Thuong River alluvial soil for orange plantations in Lang Giang district, Bac Giang province, Vietnam. The soil particle size ranged from 0.02 to 2.00mm mainly found in the surface horizon (>77.7%). The soil was slightly acidic in the surface horizon, and highly acidic in the subsurface horizons (pHKCl from 3.42 to 4.79). The organic matter content of the surface horizon was mederate, while it was very low in the other horizons.
8p chauchaungayxua12 09-07-2021 12 1 Download
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A field investigation was conducted at Instructional farm of Krishi Vigyan Kendra Kendrapara, Odisha during kharif and rabi seasons of 2013-14 and 2014-15 in ricegroundnut cropping system under irrigated medium land situation. The soil of the experimental site was sandy loam in texture with pH of 5.7, organic carbon of 0.52 % having available soil nitrogen, phosphorus and potassium of 390.9 kg/ha, 10.1 kg/ha and 190.1 kg/ha respectively.
12p trinhthamhodang11 27-04-2021 12 2 Download
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The relatively low crop yields may be attributed to non availability of improved cultivars, poor crop husbandry practices and exposure to number of biotic and abiotic stresses in the environment. Therefore, there is an urgent necessity to develop high yielding varieties of pigeon pea. However, no systematic efforts were made so far to document the nutritional composition among the pigeon pea germplasm collection.
11p caygaocaolon11 21-04-2021 7 0 Download
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In the present study, a considerable build up in soil organic carbon under tree canopy as compared to open canopy was found and soil organic carbon under tree canopy decreased with an increase in soil depth and increasing canopy distance. The total nitrogen percentage in soil decreased with an increase in depth and canopy. In case of available soil phosphorus, it decreased under the tree canopy with increasing soil depth and canopy distance.
6p chauchaungayxua10 18-03-2021 8 1 Download
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A study was conducted during rabi season of 2017-18 at Agronomy Research Area of CCS Haryana Agricultural University, Hisar to study the effects of different sources and levels of nitrogen application on nutrient content and uptake of wheat. The soil of the experimental field was sandy loam in texture, neutral in reaction, low in organic carbon and available nitrogen, medium in available potassium and high in available potassium...
7p chauchaungayxua11 23-03-2021 12 1 Download
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These in view the present investigation was undertaken for assessing the residual effect of INM on available nutrients in soil.
6p chauchaungayxua11 23-03-2021 11 1 Download
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Phosphorus (P) deficiency is second to nitrogen (N) and its deficiency is widespread. Soil based site specific P recommendation for sustainable crop productivity mainly relies on status, and availability of phosphorus. Representative soil samples (250) from different agro-ecological regions of Eastern Dry Zone (EDZ) of Karnataka were analysed for P status and randomly collected samples were analysed for P fractions.
15p cothumenhmong9 18-01-2021 10 1 Download
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This study clearly showed the benefit of P availability in combination with Rhizobium on leaf area, leghaemoglobin content, nitrate reductase activities of leaves and nodules, fresh and dry weight of nodules and fresh weights of stem + leaves at vegetative and flowering stages. Yield components, pod number and seed number were significantly increased by P availability by fertilizer alone and in combination with Rhizobium or through Rhizobium +Microphos.
6p gaocaolon9 22-12-2020 9 0 Download
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The study has revealed that significantly highest number of flowers per plant (28.00), highest flower diameter (7.83 cm) and highest flower yield per hectare (25.25 q) were observed by application of nitrogen at the rate of 200 kg ha-1 in combination with potassium at the rate of 150 kg ha-1 . Non-significant changes were observed in the available organic carbon content in the soil at the end of the experiment when compared with the application of nutrients before the experimentation.
11p gaocaolon9 22-12-2020 17 0 Download
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An experiment was conducted on cultivation of kharif maize with addition of different types of fertilizer and manure with different level. Vermicompost had increased the bulk and particle density, pore space, and water holding capacity, electrical conductivity and reduced pH and increased organic carbon content, available nitrogen, phosphorous and potassium activity in optimized treatment.
7p trinhthamhodang1216 19-11-2020 11 0 Download
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Nine typical pedons from Langate Block of Kupwara district during 2017 were selected and surveyed for the purpose of collection of soil samples. The soil samples processed and analyzed for different nutrients. Available Micro and Macro nutrients were determined using standard techniques. The overall results showed that the soils are near slightly acidic to moderate alkaline in reaction, low to medium in organic carbon. In general the soils The available nutrients Nitrogen and Potassium were low to medium with the mean values of 287.99 and 149.
9p trinhthamhodang1216 19-11-2020 8 0 Download
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A field experiment entitled “Performance of rice varieties at varying levels of nitrogen under direct seeded upland condition” was conducted on silty clay loam soil with low in available nitrogen, medium in phosphorus and high in available potassium at neutral pH Agriculture College Farm, Rewa (M.P.) during Kharif season 2015.
6p caygaocaolon8 07-11-2020 20 0 Download
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Long term field experiment on rice commenced in kharif 2006 at Instructionalcum-Research (ICR) farm of the Assam Agricultural University, Jorhat with integrated nutrient management (INM) treatments for assessing its impact on soil properties and microbial activities in acidic soils.
7p caygaocaolon8 07-11-2020 12 1 Download
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This study analyzed Baker‟s yeast efficiency based upon its ability of growth on various agro-industrial wastes that act as the carbon source with an addition of nitrogen supplement at various growth parameters. Various locally available carbon sources including molasses, fruit bagasse juice, sugarcane bagasse juice and whey were used with inorganic as well as organic supplementation of corn steep liquor at a concentration of 50g/L. Increased productivity in case of the lab isolate was observed upon the use of organic supplementation @16.16%.
14p angicungduoc8 07-11-2020 5 0 Download
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The experiment was carried out in the department of soil science and agricultural chemistry, College of Agriculture, Rajendranagar, PJTSAU. The enzyme L-Glutaminase (L-glutamine amido hydrolase E.C. 3.5.1.2) cause the hydrolysis of L-glutamine to ammonia, L-glutamic acid, thus it makes the amide form of nitrogen available to the plants. We have detected this enzyme in soils.
7p angicungduoc8 07-11-2020 12 1 Download
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Biofertilizers play a significant role in fixing atmospheric nitrogen, production of growth promoting substances and making phosphorous available to the plants hence the application of biofertilizers is very essential to the plant (Upadhayay et al., 1999).
8p nguathienthan8 20-10-2020 9 1 Download
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The application of farmyard manure (FYM) in conjunction with inorganic fertilizers significantly increased yield attributes and yield of rice. Application of FYM improved available nutrients, porosity, organic carbon, cation exchange capacity (CEC), and aggregation of soil and reduced bulk density. Inorganic fertilizers in conjunction with FYM improved quality parameters of rice.
14p nguathienthan8 20-10-2020 12 1 Download
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The crop yield should be limited by the available nitrogen within the soil. Yoshida (1972) reported that nitrogen plays an important role in developing yield capacity and maintaining the photosynthetic activity during grain filling stage of the crop. Nitrogen application can improve the root system, so that water and nutrient absorption are facilitated.
7p nguaconbaynhay8 13-10-2020 18 0 Download