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Book Nitrogen in the Environment  Sources  Problems and Management

Download or read book Nitrogen in the Environment Sources Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.

Book Effect of Various Doses of Nitrogen Phosphorus and Potassium on Yield  grain Na Dry Stalk   and Protein Content of Hybrid Sorghum  M S X I S  2930

Download or read book Effect of Various Doses of Nitrogen Phosphorus and Potassium on Yield grain Na Dry Stalk and Protein Content of Hybrid Sorghum M S X I S 2930 written by C. D. Karve and published by . This book was released on 1965 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Physiological Basis of Hybrid Variation for Grain Yield and Nitrogen Concentration of Grain Sorghum  Sorghum Bicolor  L   Moench  Grown Under Different Nitrogen Levels

Download or read book Physiological Basis of Hybrid Variation for Grain Yield and Nitrogen Concentration of Grain Sorghum Sorghum Bicolor L Moench Grown Under Different Nitrogen Levels written by Akihiko Kamoshita and published by . This book was released on 1996 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Population  Nitrogen Application Rates and Their Interactions on Grain Yield  Percent Grain Protein and Other Agronomic Characteristics of Three Sorghum  Sorghum Bicolor  L   Moench  Hybrids

Download or read book Effects of Population Nitrogen Application Rates and Their Interactions on Grain Yield Percent Grain Protein and Other Agronomic Characteristics of Three Sorghum Sorghum Bicolor L Moench Hybrids written by Damana Jamari Gaya and published by . This book was released on 1975 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effect of Genotypes and Nitrogen on Grain Quality of Sorghum

Download or read book Effect of Genotypes and Nitrogen on Grain Quality of Sorghum written by Sory Diallo and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum (Sorghum bicolor L. Moench) is cultivated as an important food grain in the semi-arid regions of Africa. Processed grain sorghum is traditionally consumed as porridge, couscous, traditional tô or beer. The quality of such foods is highly dependent upon grain characteristics. Sorghum grain quality traits mainly include kernel hardness, kernel weight, kernel size, protein content and kernel color. Grain quality traits are often influenced by environment, genotypes, fertilizer management and their interaction. The objective of this study was to determine the impact of different levels of nitrogen application (0, 45, and 90 kg ha−1) on grain quality of selected sorghum genotypes. The field experiment was conducted at three locations in 2010 (Manhattan, Ottawa, and Hays) and at two locations in 2011 (Manhattan and Ottawa). The experiment was laid in split plot randomized complete bloc design and replicated four times. The main plots were assigned to three N regimes: control (0 kg N ha−1), half recommended rate (45 kg N ha−1) and recommended rate (90 kg N ha−1). The subplots were assigned to twelve genotypes (six hybrids and six inbred lines). Plot size was 6.1 m x 3.0 m with a row spacing of 0.75 m. After harvest, grain quality traits (hardness, weight, diameter and protein content) were evaluated using standard procedures and the data subjected to statistical design using SAS. There were significant effects of genotype for most grain quality traits across both locations in Manhattan. Inbred lines SC35 and SC599 had maximum hardness at all locations while hybrid 95207, had the lowest hardness for all locations. Also, Inbred lines SC35 and Tx340 had maximum protein content at all the locations. While hybrids 95207, 26056, 23012 had the lowest protein content. Genotypes Tx430, SC35, had higher hardness and with higher protein content were classified as high quality. We conclude that application of N (45 or 90 kg ha−1) significantly improved grain protein, but not other quality traits. There are opportunities to improve grain protein through fertilizer management and plant breeding.

Book Research Progress Report on Inheritance and Improvement of Protein Quality and Content in Sorghum Bicolor  L   Moench

Download or read book Research Progress Report on Inheritance and Improvement of Protein Quality and Content in Sorghum Bicolor L Moench written by John David Axtell and published by . This book was released on 1972 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Planting Practices and Nitrogen Management on Grain Sorghum Production

Download or read book Effects of Planting Practices and Nitrogen Management on Grain Sorghum Production written by Alassane Maiga and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum [Sorghum bicolor (L.) Moench] is a relatively drought- and heat-tolerant cereal crop. Global demand and consumption of agricultural crops for food, feed, and fuel is increasing at a rapid pace. To satisfy the growing worldwide demand for grain, production practices must be well optimized and managed. The objectives of the present study were: to optimize sorghum production by determining the best management practices (planting date, row spacing, seeding rate, hybrid maturity) for growth and yield, to evaluate the agronomic responsiveness of grain sorghum genotypes to nitrogen (N) fertilizer and to develop a partial financial budget to N fertilizer application based on best management practices. In order to meet these objectives, field experiments were conducted in 2009, 2010 and 2011 at Manhattan, Belleville, Ottawa, Hutchinson, Hays, at KSU Experiment Stations and Salina, and Randolph at Private Farms. Results indicated that early planting date (late May) and narrow row spacing (25 cm) providing the most equidistant spacing, produced better plant growth, light interception, yield components (number of grains per panicle, 300-grain weight), and biological yield. Results indicated that with increasing N rate, there was a proportional increase in chlorophyll SPAD meter reading, leaf color scores and number of green leaves. There was a significant difference among hybrids for N uptake, NUE and grain yield. However, there was no effect of N and no interaction between N and hybrid on grain yield. Over all, the genotypes with high NUE also had higher grain yield. Economic analysis using partial budget indicated that all N levels had positive gross benefit greater than control at all locations. However, the response varied across locations. Our research has shown that sorghum responds to changing management practices and opportunities exist to increase grain yield by optimizing planting date, seeding rate, row spacing, N application and selection of genotypes.

Book Complementary Effects of Grain Legumes to Sorghum  sorghum Bicolor  L   Moench  Yields  Nitrogen Nutrition and Residual Soil Mineral Nitrogen

Download or read book Complementary Effects of Grain Legumes to Sorghum sorghum Bicolor L Moench Yields Nitrogen Nutrition and Residual Soil Mineral Nitrogen written by Lucas P. Gakale and published by . This book was released on 1986 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Crop Response to Density  Optimization of Resource Use to Promote Sustainability

Download or read book Crop Response to Density Optimization of Resource Use to Promote Sustainability written by Yared Assefa and published by Frontiers Media SA. This book was released on 2022-09-14 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Sorghum Science

    Book Details:
  • Author : R. K. Maiti
  • Publisher :
  • Release : 1996
  • ISBN :
  • Pages : 376 pages

Download or read book Sorghum Science written by R. K. Maiti and published by . This book was released on 1996 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum is one of the five important cereal crops of the world and is used by millions in the semi-arid tropics and also as animal feed in many developed countries. The sorghum grain has excellent yields in the semi-arid tropics under several biotic and abiotic constraints. A good knowledge of sorghum plants and their mechanisms of adaptation in harsh environments will help in the formulation of efficient breeding programmes.

Book The Physiology of Tropical Field Crops

Download or read book The Physiology of Tropical Field Crops written by Peter R. Goldsworthy and published by John Wiley & Sons. This book was released on 1984 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tropical environment. The water relations of crops. Root morphology and nutrient uptake. Crop growth and development: vegetative phase. Crop growth and development: the reproductive phase. Tropical maize. Sorghum. Pennisetum millet. Common bean. Cowpea. Pigeonpea. Chickpea. Groundnut. Cotton. Cassava. Sweet potato. Yam. Cocoyam. Tobacco.

Book Effects of Different Light Intensities  Nitrogen Levels and Population Densities on Grain Sorghum

Download or read book Effects of Different Light Intensities Nitrogen Levels and Population Densities on Grain Sorghum written by C. D. Carcallas and published by . This book was released on 1975 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain sorghum (Cosor 3) was grown under three light regimes, i.e., in full sunlight, 25% shade, and 50% shade at three levels each of nitrogen and plant population density to evaluate its yield and other, important characteristicssuch as: leaf lenght, leaf width, leaf area index,100-grain weight, grains per panicle, panicle yield, grain-stover ratio, threshing percentage, total dry matter production, panicle lenght, plant height and number of days to blooming. In addition, leaf nitratereductase activity and grain tannin concentration were analyzed. Plantpopulation densities used were 150, 000, 200, 000 and 250,000 plt/ha; the nitrogen levels at 0, 75, and 150 Kg N/ha; and 0, 25, 50 per cent shading. The statistical design split-split plot was used with plant population density as the main plot, nitrogen level as the sub plot, and light intensity as the sub-sub plot. The experiment was conducted during the dry season (January-April, 1975) at the Central Experiment Station, University of the Philippines at Los Banos, Laguna. The yielding capacity of grain sorghum (Cosor 3) in terms of its total dry matter,grain yield, and grain tannin concentration was reduced at low light intensyti. The results have shown that: l. Grain sorghum (Cosor 3) yielded differently at different combinations of plants density, nitrogenlevels, and light intensity. 2. Increasing plant population density up to 250,000 plt/ha consistently resulted in reduction of such characters as: leaf length, leaf width, plant height, and number of grains perpanicle. In spite of the depressive effects of dense population on individual plants, grain yield is co compensated by the increase in number of panicles per unit area. Higher plant population density is advantageous only at high light intensity, while at lower light intensity lower plant population is preferred. 3. Fertilized plants matured 10 days earlier than the unfertilized. Plants treated with 150 Kg N/ha produced higher grain yield at higher light intensity. Under shaded condition, grain yields from 75 and 150 Kg N/ha were comparable. 4. Grain tannin concentration was lower at high nitrogen rates. At high light intensity, grain tannin concentration was also high. 5. Leaf nitrate reductase activity was maximum at 25% shade and ao lower nitrogen level. At higher nitrogen rates, maximum nitrate reductase activity was obtained from the unshaded plants.

Book Maize In The Third World

Download or read book Maize In The Third World written by Christopher Dowswell and published by CRC Press. This book was released on 2019-04-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is the world's most widely grown cereal and a dietary staple throughout the Third World, but its full potential has only begun to be tapped. This book thoroughly examines the biological and economic issues relevant to improving the productivity of maize in developing countries. The authors explore a wide range of practical problems, from maxi