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Showing 1 to 20 of 87 for “"nitrogen fertilizer"”.
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Determination of Poultry Litter's Nitrogen-Fertilizer Value for Winter Wheat Production
<p>Nitrogen (N) availability in poultry litter (PL) applied in the fall as a nutrient source for winter wheat (Triticum aestivum L.) has not been adequately characterized. Our objective was to determine a potentially available N (PAN) coefficient based on the inorganic-N fertilizer equivalence …
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On-farm nitrous oxide response to nitrogen fertilizer in corn cropping systems
Thesis (M.S.)--Michigan State University. Crop and Soil Science, 2009
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Corn yield and water use as influenced by split applications of nitrogen fertilizer
Call number: LD2668 .T4 1978 A51
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Corn yield and water use as influenced by split applications of nitrogen fertilizer
Call number: LD2668 .T4 1978 A51
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Spatial Variability of Corn Response to Nitrogen Fertilizer: Implications for Variable Rate Fertilization
… recognized that corn yield and its response to nitrogen fertilizer varies within fields. New technologies allow varying the rate of nitrogen fertilizer within fields, but the adoption of this technology is limited due to a lack of recommendations developed for this management strategy. The …
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Genotype and Nitrogen fertilizer influence on Grain yield and protein content of wheat(Triticum aestivum L.)
… to evaluate the influence of genotype and nitrogen application on grain yield and quality of wheat (Triticum aestivum L.) The varieties assessed were Tugela DN, Betta DN, SST 124 and caledon at a seeding rate of 50kg ha-1. Nitrogen was applied at five rates of 0,20,40,60, and 80 kg N ha-1. …
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Genotype and Nitrogen fertilizer influence on Grain yield and protein content of wheat(Triticum aestivum L.)
… to evaluate the influence of genotype and nitrogen application on grain yield and quality of wheat (Triticum aestivum L.) The varieties assessed were Tugela DN, Betta DN, SST 124 and caledon at a seeding rate of 50kg ha-1. Nitrogen was applied at five rates of 0,20,40,60, and 80 kg N ha-1. …
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A biogeochemical analysis of Miscanthus x giganteus under nitrogen fertilizer treatments and across multiple soil types
… to be highly productive with minimal inputs. Nitrogen (N) fertilization is being studied to see if M. x giganteus productivity is increased as well as potential environmental impacts. It is important to understand the effects of N fertilizer on M. x giganteus across a range of soil types and …
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Effect of Nitrogen Fertilizer Rates and Two-Spotted Spider Mite Incidence on 'Strawberry Festival' Strawberry Cultivar Performance
… ‘St. Festival’ strawberry cultivar to different nitrogen fertilizer rates in order to develop a fertilization program for strawberries grown under high tunnel production systems. Experiments were conducted at the University of Arkansas Research Station, Fayetteville to determine the effects of …
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Effects of nitrogen fertilizer and red clover (Trifolium pratense L.) component on productivity of grass-legume mixed swards
… red clover (low and high) and three levels of N fertilizer (0, 28, 56 N kg ha-1) on herbage accumulation and quality of grass-legume mixed swards were studied. Total herbage accumulation of the mixtures with high legume percentage was significantly higher than those with low legume percentage and …
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The Regional Economic Impact on Illinois Agriculture of Environmental Controls on Nitrogen Fertilizer Use: A Linear Programming Analysis
Made available in DSpace on 2014-12-14T06:05:54Z (GMT). No. of bitstreams: 1 7606899.pdf: 10504773 bytes, checksum: 98ea0f44db0fefb4e48bf92a51b67712 (MD5) Previous issue date: 1975
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The effects of growth medium acidity, exogenous growth regulators, and nitrogen fertilizer on the acceleration of Fraser fir seedling growth
… application of growth regulators. and supply of nitrogen fertilizer. Sphagnum peat growth medium was adjusted with a to 8 kg dolomitic limestone/m3 compressed packaged peat to initial pH ranging from 3.9 to 6.7. Best growth (21.2 cm mean height at 19 months) was achieved with 1 kg/m³ and 2 kg/m³â …
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Effect of Seed Size at Planting and Nitrogen Fertilizer on Seed and Fruit Development and Yield of Pumpkins (Cucurbita Moschata Poir.)
Made available in DSpace on 2014-12-14T15:45:33Z (GMT). No. of bitstreams: 1 8004306.pdf: 2058744 bytes, checksum: 7aee3758bfa71001278ad511f0437621 (MD5) Previous issue date: 1979
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Impacts of Landscape Position and Nitrogen Fertilizer on Soils, Carbon and Nitrogen Leaching, and Greenhouse Gas Fluxes from Switchgrass Production in South Dakota
… this study were to (i) evaluate the impacts of nitrogen fertilization rate (N rate) and landscape position on soil pH, soil organic carbon (SOC), total nitrogen (TN), bulk density (ρb), and phosphorus (P) in switchgrass field; (ii) assess the impacts of the N rate and landscape position on …
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Determination of Optimum Fall and Spring Nitrogen Fertilizer Rate for Maximizing Grain Yield of Soft Red Winter Wheat Sown at Variable Planting Dates
… planting date is important for winter wheat nitrogen (N) management as it dramatically changes the growing environment including temperature and moisture, ultimately affecting fertilizer efficiency and grain yield (GY). In Arkansas, high precipitation in the fall often forces farmers to delay …
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Effects of a Control Release Nitrogen Fertilizer and Thinning on the Nitrogen Dynamics of a Mid-Rotation Loblolly Pine Stand in the Piedmont of Virginia
Nitrogen deficiency is characteristic of many mid-rotation loblolly pine (Pinus taeda L.) plantations in the Piedmont region of the southeastern USA. Fertilization with urea is the most common method used to correct this deficiency. Previous studies show that urea fertilization produces a rapid …
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Destination of Isotopic Nitrogen Fertilizer Under Varying Herbicide Regimes in a Mid-Rotation Loblolly Pine (Pinus taeda L.) Plantation in the Piedmont of Virginia, USA
… vegetation is commonly thought to sequester fertilizer nitrogen (N) and reduce the potential growth response to a mid-rotation fertilization treatment. This experiment aims to identify what proportion of applied N fertilizer is retained in the crop tree pine foliage, and the degree to which …
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An Approach to Using Labile Soil Nitrogen Measurements for Calibration of the Dssat-Century Agroecosystem Model for Site-Specific Nitrogen Fertilizer Management in Illinois, Unites States
… N fractions to better predict crop responses to fertilizer applications. Although it was possible to obtain reasonably good fits to N response trials, it became clearly that further calibration of leaching and nitrification/denitrification must be accomplished before it becomes practical to …
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A partial equilibrium analysis of global fertilizer supply and demand
Prices of nitrogen and phosphorous fertilizer spiked between 2008 and 2012. A partial equilibrium model of global nitrogen, phosphorus, and potassium fertilizer markets is constructed that is capable of producing a baseline of economic variables against which the impacts of various alternative …
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The Relationship Between Mineral Nutrition and Late-Season Bunch Stem Necrosis of Cabernet Sauvignon (Vitis vinifera L.) Grapevines
… used alone or in combination, included nitrogen, magnesium, and calcium. During the 1997 and 1998 seasons at Leesburg vineyard, applications of nitrogen, magnesium, and calcium produced little change in bloom-time petiole mineral concentration. Fertilizer treatments appeared to have no …
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