Influence of Nitrogen Fertilizer and Plant Density on Some Physiological Aspects and Grain Yield of Maize (Zea Mays L.) PDF Download
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Author: Mohammad Athar
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 114
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Author: Mohammad Athar
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 114
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Author: J. Nitayajarn
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
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Book Description
A field experiment was conducted to study the influence of plant density and nitrogen ferilizer on IPB Var 1 (open-pollinated) and Pioneer hybrids 3228, 6181 and 3274 at Pioneer Seed Farm, Banlik, Cabuyao, Laguna, Philippines during wet season (August-December), 1985) and dry season (December 1985-march 1986). Specifically, the pupose of this study was to determine the optimum plant density and nitrogen fertilizer level of four maize genotypes, to ascertain the realtionship between morpho-physiological traits and grain yield, and to evaluate nitrogen use efficiency and its component aspects. Plant density used were 53,333, 66,666 and 80,000 plants/ha at a fixed 75-cm row width and at nitrogen levels of 0, 60, 120 and 180 kg/ha. The experiment was conductedusing split-split plot design with threee replication where nitrogen fertilizer level, genotype, and plant density were main plot, subplot, and sub-sub plot, respectively. The optimum plant dnsity and ntrogen fertilizer level were 61,700 plants/ha at a spacing of 75 cm between rows and 22 cm between hills and 60 kg N/ha for all genotypes studies. The ralationship between morphophysiological traits and grain yield suggested that differences in grain yield among genotypes were largely contributed by variation in the grain filling period and sink capacity rather than source capacity. Increasing levels of nitrogen increased source and sink capacities, longer grain filling period, and higher grain yield. At optimum density, yield eas contributed primarily (...).
Author: A. Solaimalai
Publisher: CRC Press
ISBN: 1000176916
Category : Technology & Engineering
Languages : en
Pages : 694
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Book Description
Maize is one of the versatile emerging crops with wider adaptability under varied agro-climatic conditions. Globally, maize is known as queen of cereals because it has the highest genetic yield potential among the cereals. It is cultivated on nearly 150 m/ha in about 160 countries having wider diversity of soil, climate, biodiversity and management practices that contributes 36 % (782 m/t) in the global grain production. The United States of America (USA) is the largest producer of maize contributes nearly 35 % of the total production in the world. It is the driver of the US economy. This book talks about the improvement, production, protection and post harvest technology of the maize crop. Note: T& F does not sell or distribute the Hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.
Author: Divya Jain
Publisher: GRIN Verlag
ISBN: 3346280918
Category : Technology & Engineering
Languages : en
Pages : 52
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Master's Thesis from the year 2018 in the subject Agrarian Studies, grade: 8.5, , course: Agronomy, language: English, abstract: The aim of this study is to study the effect of integrated nutrient management on the growth and yield of kharif Maize and to work out the economics of different nutrient management treatments. As the chemical’s fertilizers play an important role in plants life so that these chemicals should not be avoided completely as they are the potential sources of the high amount of nutrients in easily available forms. These fertilizers greatly affect enzymatic activities in the soil profile but poor management of the chemical fertilizers has a key role in lowering the yield productivity and deteriorate the soil health also. So, to achieve optimum crop production, there is a need to use the combination of organic sources, inorganic sources, bio-fertilizers. Maize (Zea mays L.) requires the nutrients i.e., macronutrients as well as micronutrients for obtaining the higher crop growth and yield. The micronutrients content in organic manure may be sufficient to meet the crop requirement but the low soil fertility is the major problem to maintain sustainability in production. The application of organic manure do not produce optimum yield due to low nutrient status but they play a direct role in plant growth by the mineralization they provide the essential nutrients which furthermore improves the physical and biological properties of the soil. The use of organic plays an important role in maintaining soil health due to the build-up of soil organic matter, beneficial microbes. “Biofertilizer” is a substance that contains living organisms. It promotes growth by increasing the supply or availability of primary nutrients to the host plant. These are not fertilizers because fertilizers directly increase soil fertility by adding nutrients. They add nutrients through the natural processes of fixing atmospheric nitrogen, solubilizing phosphorus, and stimulating plant growth through the synthesis of growth promoting substances. Azotobacter is dominant among the free-living forms of nitrogen fixers. It has been used extensively as a production technology in many countries and there were 20-29 percent increase in yield. Hence, the judicious application of these combinations can sustain soil fertility and productivity. In general, scheduling of fertilizers is based on the individual nutrient requirement of the crop and the carry-over effect of manure and fertilizer applied to precede crop is ignored.
Author: Donald M'Siska
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 114
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Author: Henry Edward DeVries
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 242
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 654
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Author: Gustavo A Slafer
Publisher: CRC Press
ISBN: 9781560228899
Category : Technology & Engineering
Languages : en
Pages : 252
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Book Description
Improve the quantity and quality of maize crops in any environment! While isolated examples of the physiological bases for genetic improvement of maize yield can be found in several papers (most of which are cited in this book), there has not, until now, been a single volume that delivers and clarifies all of the available information in this field! Today, Physiological Bases for Maize Improvement offers scientists and crop growers a thorough and concise guide to recent literature and developments about increasing the crop efficiency of corn. In Physiological Bases for Maize Improvement, international experts in the field discuss and analyze methods of effectively improving crop breeding and producing better and larger yields of corn. Physiological Bases for Maize Improvement delivers clear, thorough discussions of: improving maize grain yield potential in a cool environment improving maize grain yield potential in the tropics processes affecting maize grain yield potential in temperate conditions maize improvement for drought-limited conditions apical dominance, herbivory resistance, and competitive ability the use of simulation models for crop improvement . . . and much more! With this book, you will find ways to improve maize crops in a variety of countries and climates and understand the importance of kernel numbers and kernel growth to the overall yield. Containing current research and case studies, Physiological Bases for Maize Improvement provides you with vital strategies that will improve the quality and quantity of corn and increase plant functionality and fitness.
Author: Robert Lee Myers
Publisher:
ISBN:
Category :
Languages : en
Pages : 162
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 386
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Book Description
