Evaluation Of Nitrogen Use Efficiency In Corn Zea Mays L Populations

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Nitrogen Use Efficiency in Plants

Author : Vanitha Jain
Publisher : New India Publishing Agency
ISBN 13 : 9789380235738
Total Pages : 256 pages
Book Rating : 4.2/5 (357 download)

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Book Synopsis Nitrogen Use Efficiency in Plants by : Vanitha Jain

Download or read book Nitrogen Use Efficiency in Plants written by Vanitha Jain and published by New India Publishing Agency. This book was released on 2011-01-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fertilizers are necessary to enhance agricultural production and to sustain food security. However, their inefficient use accrues from inherent limitations of the crop plants as well as the manner in which N fertilizers are formulated, applied and managed. The main aim of the book is to assess the various aspects of the fate of fertilizer N in context of the overall N inputs to agricultural systems, with a view to enhance the efficiency of nitrogen use and reduce the negative impacts on environment. The cross cutting issues relate to improvement in nitrogen use by emerging technologies (genetic enhancement, QTL mapping), meeting N needs by understanding its interactions with other nutrients, and mitigation of nitrogen losses caused by environmental factors and management practices. Nitrogen Use Efficiency in Plants develops links between basic and applied research and practical crop production by addressing a wide range of topics relating to nitrogen use efficiency, and to plant and crop responses to applications of nitrogen via fertilizers, including nitrogen acquisition and reduction, molecular approaches, nitrate induction and signaling; and nitrogen use under abiotic stresses. Nitrogen Use Efficiency in Plants is an invaluable classroom aid for academics working in plant physiology, biochemistry, biotechnology, molecular breeding and agronomy, and an essential professional resource for researchers working in plant and crop systems as it provides a comprehensive, interdisciplinary description of problems related to the efficient use of nitrogen in agriculture.

Handbook of Plant and Crop Physiology

Author : Mohammad Pessarakli
Publisher : CRC Press
ISBN 13 : 082474134X
Total Pages : 997 pages
Book Rating : 4.8/5 (247 download)

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Book Synopsis Handbook of Plant and Crop Physiology by : Mohammad Pessarakli

Download or read book Handbook of Plant and Crop Physiology written by Mohammad Pessarakli and published by CRC Press. This book was released on 2001-09-18 with total page 997 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from over 70 international experts, this reference provides comprehensive coverage of plant physiological stages and processes under both normal and stressful conditions. It emphasizes environmental factors, climatic changes, developmental stages, and growth regulators as well as linking plant and crop physiology to the production of food, feed, and medicinal compounds. Offering over 300 useful tables, equations, drawings, photographs, and micrographs, the book covers cellular and molecular aspects of plant and crop physiology, plant and crop physiological responses to heavy metal concentration and agrichemicals, computer modeling in plant physiology, and more.

Agriculture and the Nitrogen Cycle

Author : Arvin Mosier
Publisher : Island Press
ISBN 13 : 1597267430
Total Pages : 320 pages
Book Rating : 4.5/5 (972 download)

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Book Synopsis Agriculture and the Nitrogen Cycle by : Arvin Mosier

Download or read book Agriculture and the Nitrogen Cycle written by Arvin Mosier and published by Island Press. This book was released on 2013-04-10 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen is an essential element for plant growth and development and a key agricultural input-but in excess it can lead to a host of problems for human and ecological health. Across the globe, distribution of fertilizer nitrogen is very uneven, with some areas subject to nitrogen pollution and others suffering from reduced soil fertility, diminished crop production, and other consequences of inadequate supply. Agriculture and the Nitrogen Cycle provides a global assessment of the role of nitrogen fertilizer in the nitrogen cycle. The focus of the book is regional, emphasizing the need to maintain food and fiber production while minimizing environmental impacts where fertilizer is abundant, and the need to enhance fertilizer utilization in systems where nitrogen is limited. The book is derived from a workshop held by the Scientific Committee on Problems of the Environment (SCOPE) in Kampala, Uganda, that brought together the world's leading scientists to examine and discuss the nitrogen cycle and related problems. It contains an overview chapter that summarizes the group's findings, four chapters on cross-cutting issues, and thirteen background chapters. The book offers a unique synthesis and provides an up-to-date, broad perspective on the issues of nitrogen fertilizer in food production and the interaction of nitrogen and the environment.

Growth and Productivity of Winter Maize (Zea mays L.) Under Different Levels of Nitrogen and Plant Population

Author : Jiban Shrestha
Publisher : Universal-Publishers
ISBN 13 : 1612334407
Total Pages : 133 pages
Book Rating : 4.6/5 (123 download)

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Book Synopsis Growth and Productivity of Winter Maize (Zea mays L.) Under Different Levels of Nitrogen and Plant Population by : Jiban Shrestha

Download or read book Growth and Productivity of Winter Maize (Zea mays L.) Under Different Levels of Nitrogen and Plant Population written by Jiban Shrestha and published by Universal-Publishers. This book was released on 2015-09-29 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field experiment was conducted at farmer’s field of Anandapur, Mangalpur VDC-3, Chitwan, Nepal during winter season from September 2006 to February 2007 to study the effects of nitrogen and plant population on maize. Fifteen treatment combinations consisting of five levels of nitrogen: 0, 50, 100, 150 and 200 kg N/ha and three levels of plant population; 55555 plants/ha (60 cm × 30 cm spacing), 66666 plants/ha (60 cm × 25 cm spacing) and 83333 plants/ha (60 cm × 20 cm spacing) were tested in factorial randomized complete block design (RCBD) with 3 replications. “Rampur Composite” variety of maize was planted on sandy silt loam and strongly acidic soil having medium in total nitrogen (0.123%), high in soil available phosphorous (77.56 kg/ha) and low in soil available potassium (23.25 kg/ha). The research findings revealed that each level of nitrogen significantly increased grain yield upto 200 kg N/ha. The grain yield (6514.48 kg/ha) obtained under 200 kg N/ha was significantly higher than that of 0, 50, 100 and 150 kg N/ha. The percent increment in yield due to application of 50, 100, 150 and 200 kg N/ha was to the extent of 62.11, 104.74, 135.68 and 154.74%, respectively over control. Significant effect on grain yield due to different levels of plant population was observed. The grain yield (5113.46 kg/ha) obtained under 66666 plants/ha was statistically at par with that under 83333 plants/ha, but significantly superior over that under 55555 plants/ha. The interaction between different nitrogen levels and plant densities on grain yield showed that the highest grain yield (6925.79 kg/ha) was obtained under treatment of 200 kg N/ha + 66666 plants/ha. The yield attributes namely number of cobs/plant, cob length, cob diameter, number of grain rows/cob and 1000 seed weight significantly increased with increasing N levels and decreasing plant population levels. The number of barren plants/ha decreased with increasing levels of N but increased with increasing levels of plant population. The net return (Rs. 42188.74/ha) and benefit:cost ratio (1.67) obtained under 200 kg N/ha were significantly highest than that obtained under other levels of nitrogen (150, 100, 50 and 0 kg N/ha). The plant population of 66666 plants/ha gave the highest net returns (Rs. 25812.28) which was 10.19 and 49.64% higher than that of 83333 plants/ha and 55555 plants/ha, respectively. The benefit: cost ratio (1.44) obtained under 66666 plants/ha was significantly higher than that of 55555 and 83333 plants/ha. The interaction between different nitrogen levels and plant densities on economics of maize production showed that significantly highest net return (Rs.48606.98) and B:C ratio (1.78) were under treatment of 200 kg N/ha + 66666 plants/ha. The highest grain yield and maximum profit were obtained when maize variety “Rampur Composite” was planted with 200 kg N/ha and plant population level of 66666 plants/ha (60 cm × 25 cm spacing).

Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin

Author :
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin by :

Download or read book Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Maize

Author : Jeff L. Bennetzen
Publisher : Springer Science & Business Media
ISBN 13 : 0387778632
Total Pages : 785 pages
Book Rating : 4.3/5 (877 download)

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Book Synopsis Handbook of Maize by : Jeff L. Bennetzen

Download or read book Handbook of Maize written by Jeff L. Bennetzen and published by Springer Science & Business Media. This book was released on 2009-01-16 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is one of the world’s highest value crops, with a multibillion dollar annual contribution to agriculture. The great adaptability and high yields available for maize as a food, feed and forage crop have led to its current production on over 140 million hectares worldwide, with acreage continuing to grow at the expense of other crops. In terms of tons of cereal grain produced worldwide, maize has been number one for many years. Moreover, maize is expanding its contribution to non-food uses, including as a major source of ethanol as a fuel additive or fuel alternative in the US. In addition, maize has been at the center of the transgenic plant controversy, serving as the first food crop with released transgenic varieties. By 2008, maize will have its genome sequence released, providing the sequence of the first average-size plant genome (the four plant genomes that are now sequenced come from unusually tiny genomes) and of the most complex genome sequenced from any organism. Among plant science researchers, maize has the second largest and most productive research community, trailing only the Arabidopsis community in scale and significance. At the applied research and commercial improvement levels, maize has no peers in agriculture, and consists of thousands of contributors worthwhile. A comprehensive book on the biology of maize has not been published. The "Handbook of Maize: the Genetics and Genomics" center on the past, present and future of maize as a model for plant science research and crop improvement. The books include brief, focused chapters from the foremost maize experts and feature a succinct collection of informative images representing the maize germplasm collection.

Plant Biotechnology

Author : Agnès Ricroch
Publisher : Springer
ISBN 13 : 331906892X
Total Pages : 290 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Plant Biotechnology by : Agnès Ricroch

Download or read book Plant Biotechnology written by Agnès Ricroch and published by Springer. This book was released on 2014-07-11 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in easy to follow language, the book presents cutting-edge agriculturally relevant plant biotechnologies and applications in a manner that is accessible to all. This book introduces the scope and method of plant biotechnologies and molecular breeding within the context of environmental analysis and assessment, a diminishing supply of productive arable land, scarce water resources and climate change. Authors who have studied how agro ecosystems have changed during the first decade and a half of commercial deployment review effects and stress needs that must be considered to make these tools sustainable.

Developing Drought and Low N-tolerant Maize

Author : G. O. Edmeades
Publisher : CIMMYT
ISBN 13 : 9789686923933
Total Pages : 580 pages
Book Rating : 4.9/5 (239 download)

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Book Synopsis Developing Drought and Low N-tolerant Maize by : G. O. Edmeades

Download or read book Developing Drought and Low N-tolerant Maize written by G. O. Edmeades and published by CIMMYT. This book was released on 1996 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incidence and intensity of drought and low N stresss in the tropics; Case studies strategies for crop production under drought and low n stresses in the tropics; Stress physology and identification of secondary traits; Physiology of low nitrogen stress; Breeding for tolerance to drought and low n stresses; General breeding strategies for stress tolerance; Progress in breeding drought tolerance; Progress in breeding low nitrogen tolerance; Experimental design and software.

Nitrogen in the Environment: Sources, Problems and Management

Author : R.F. Follett
Publisher : Gulf Professional Publishing
ISBN 13 : 0080537561
Total Pages : 539 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Nitrogen in the Environment: Sources, Problems and Management by : R.F. Follett

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.

Physiology of Crop Production

Author : N.K. Fageria
Publisher : CRC Press
ISBN 13 : 9781560222897
Total Pages : 366 pages
Book Rating : 4.2/5 (228 download)

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Book Synopsis Physiology of Crop Production by : N.K. Fageria

Download or read book Physiology of Crop Production written by N.K. Fageria and published by CRC Press. This book was released on 2006-05-16 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This single volume explores the theoretical and the practical aspects of crop physiological processes around the world The marked decrease over the past century in the land available for crop production has brought about mounting pressure to increase crop yields, especially in developing nations. Physiology of Crop Production provides cutting-edge research and data for complete coverage of the physiology of crop production, all in one source, right at your fingertips. This valuable reference gives the extensive in-depth information soil and crop professionals need to maximize crop productivity anywhere the world. Leading soil and plant scientists and researchers clearly explain theory, practical applications, and the latest advances in the field. Crop physiology is a vital science needed to understand crop growth and development to facilitate increases of plant yield. Physiology of Crop Production presents a wide range of information and references from varying regions of the world to make the book as complete and broadly focused as possible. Discussion in each chapter is supported by experimental data to make this book a superb resource that will be used again and again. Chapter topics include plant and root architecture, growth and yield components, photosynthesis, source-sink relationship, water use efficiency, crop yield relative to water stress, and active and passive ion transport. Several figures and tables accompany the extensive referencing to provide a detailed, in-depth look at every facet of crop production. Physiology of Crop Production explores management strategies for: ideal plant architecture maximizing root systems ideal yield components maximizing photosynthesis maximizing source-sink relationship sequestration of carbon dioxide reducing the effects of drought improving N, P, K, Ca, Mg, and S nutrition improving micronutrient uptake Physiology of Crop Production is an essential desktop resource for plant physiologists, soil and crop scientists, breeders, agronomists, agronomy administrators in agro-industry, educators, and upper-level undergraduate and graduate students.

Maize Crop

Author : A. Solaimalai
Publisher : CRC Press
ISBN 13 : 1000176959
Total Pages : 461 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis Maize Crop by : A. Solaimalai

Download or read book Maize Crop written by A. Solaimalai and published by CRC Press. This book was released on 2020-05-10 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Solute Movement in the Soil-root System

Author : Peter Hague Nye
Publisher : Univ of California Press
ISBN 13 : 9780520034518
Total Pages : 360 pages
Book Rating : 4.0/5 (345 download)

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Book Synopsis Solute Movement in the Soil-root System by : Peter Hague Nye

Download or read book Solute Movement in the Soil-root System written by Peter Hague Nye and published by Univ of California Press. This book was released on 1977 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fertilizer Application on Crop Yield

Author : Jagadish Timsina
Publisher : MDPI
ISBN 13 : 3038976547
Total Pages : 252 pages
Book Rating : 4.0/5 (389 download)

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Book Synopsis Fertilizer Application on Crop Yield by : Jagadish Timsina

Download or read book Fertilizer Application on Crop Yield written by Jagadish Timsina and published by MDPI. This book was released on 2019-04-02 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer application can increase crop yields and improve global food security, and thus has the potential to eliminate hunger and poverty. However, excessive amounts of fertilizer application can contribute to groundwater pollution, greenhouse gas emissions, eutrophication, deposition and disruptions to natural ecosystems, and soil acidification over time. Small farmers in many countries think inorganic fertilizers are expensive and degrade soils, and thus policymakers want to promote organic instead of inorganic fertilizers. To develop practical fertilizer recommendations for farmers, yield responses to applied fertilizers from inorganic and organic sources, indigenous nutrient supply from soil, and nutrient use efficiency require consideration. There is a lack of sufficient scientific understanding regarding the need and benefit of integrated nutrient management (i.e., judicious use of inorganic and organic sources of nutrients) to meet the nutrient demand of high-yielding crops, increase yields and profits, and reduce soil and environmental degradation. Inadequate knowledge has constrained efforts to develop precision nutrient management recommendations that aim to rationalize input costs, increase yields and profits, and reduce environmental externalities. This Special Issue of the journal provided some evidence of the usefulness of integrated nutrient management to sustain soil resources and supply nutrients to crops grown with major cereal and legume crops in some developing countries.

Rice is Life Scientific Perspectives for the 21st Century

Author :
Publisher : Int. Rice Res. Inst.
ISBN 13 : 9712202046
Total Pages : 596 pages
Book Rating : 4.7/5 (122 download)

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Book Synopsis Rice is Life Scientific Perspectives for the 21st Century by :

Download or read book Rice is Life Scientific Perspectives for the 21st Century written by and published by Int. Rice Res. Inst.. This book was released on 2005 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Soil Science: Agricultural and Environmental Prospectives

Author : Khalid Rehman Hakeem
Publisher : Springer
ISBN 13 : 331934451X
Total Pages : 439 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Soil Science: Agricultural and Environmental Prospectives by : Khalid Rehman Hakeem

Download or read book Soil Science: Agricultural and Environmental Prospectives written by Khalid Rehman Hakeem and published by Springer. This book was released on 2016-08-01 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is the most important natural non-renewable resource developed over a longer period of time due to weathering of rocks and subsequently enrichment of organic matter. Soil provides habitat for numerous microorganisms and serves as a natural medium for plant growth, thereby providing the plants with anchorage, nutrients and water to sustain the growth. Soil also serves as a universal sink for all types of pollutants, purifies ground water and is a major reserve of carbon in the universe. The role of soils to provide ecosystem services, maintenance of environmental/human health and ensuring the food security makes it as the most important and basic natural resource. Soil Science helps us to elaborate and understand how the soils provide all these services. Soil Science also provides us the basic knowledge dealing with the origin of the soil parent material, weathering of parent material and the formation of soils, morphological, physico-chemical and biological features of soils, classification of soils and role of soils in the provision and maintenance of ecosystem services, food security and environmental quality. This book encompasses the various processes, functions and behaviour of soils very comprehensively to acquaint the students of soil, plant and environmental sciences about their role to perform different agricultural and environmental functions.

Molecular Biology of Plants

Author : Irwin Rubenstein
Publisher : Elsevier
ISBN 13 : 1483272427
Total Pages : 362 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Molecular Biology of Plants by : Irwin Rubenstein

Download or read book Molecular Biology of Plants written by Irwin Rubenstein and published by Elsevier. This book was released on 2013-10-22 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Biology of Plants presents the formal scientific presentations delivered on the symposium on plant molecular biology, held at the University of Minnesota in 1976. The topics in this book are organized around the central dogma of molecular biology. Section I describes the organization and replication of DNA in plant chromosomes, including chloroplast genomes; Section II discusses molecular aspects of transcription and translation, ribosomal RNA gene systems and hormonal control of protein synthesis. Section III examines plant viruses and bacterial agents, in particular the crown gall system, viroids, and the replication of plant RNA viruses. Each of these specific topics contributes to an integrated knowledge of plant molecular biology. The book will be of interest to geneticists, cell biologists, plant breeders, plant physiologists, plant pathologists, and biochemists.

Growth and Mineral Nutrition of Field Crops

Author : Nand Kumar Fageria
Publisher : CRC Press
ISBN 13 : 1439816964
Total Pages : 574 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Growth and Mineral Nutrition of Field Crops by : Nand Kumar Fageria

Download or read book Growth and Mineral Nutrition of Field Crops written by Nand Kumar Fageria and published by CRC Press. This book was released on 2010-10-19 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: By the year 2050, the world's population is expected to reach nine billion. To feed and sustain this projected population, world food production must increase by at least 50 percent on much of the same land that we farm today. To meet this staggering challenge, scientists must develop the technology required to achieve an "evergreen" revolution-one