Zhenli He – författare & böcker

Phosphorus Management in Crop Production

Häftad, Engelska, 2021

726 kr

Skickas inom 10-15 vardagar

The world population is projected to reach nine billion by 2050, and in the coming years, global food demand is expected to increase by 50% or more. Higher crop productivity gains in the future will have to be achieved in developing countries through better natural resources management and crop improvement. After nitrogen, phosphorus (P) has more widespread influence on both natural and agricultural ecosystems than any other essential plant element. It has been estimated that 5.7 billion hectares of land worldwide contain insufficient amounts of available P for sustainable crop production, and P deficiency in crop plants is a widespread problem in various parts of the world. However, it has been estimated that worldwide minable P could last less than 40 years. For sustaining future food supplies, it is vital to enhance plant P use efficiency.To bring the latest knowledge and research advances in efficient management of P for economically viable and environmentally beneficial crop production in sustainable agriculture, Phosphorus Management in Crop Production contains chapters covering functions and diagnostic techniques for P requirements in crop plants, P use efficiency and interactions with other nutrients in crop plants, management of P for optimal crop production and environmental quality, and basic principles and methodology regarding P nutrition in crop plants. The majority of research data included are derived from many years of field, greenhouse, and lab work, hence the information is practical in nature and will have a significant impact on efficient management of P-fertilizers to enhance P use efficiency, improve crop production, promote sustainable agriculture, and reduce P losses through eluviations, leaching, and erosion to minimize environmental degradation.A comprehensive book that combines practical and applied information, Phosphorus Management in Crop Production is an excellent reference for students, professors, agricultural research scientists, food scientists, agricultural extension specialists, private consultants, fertilizer companies, and government agencies that deal with agricultural and environmental issues.

Phosphorus Management in Crop Production

AvVirupax C. Baligar,Zhenli Hem. fl.

E-bok

Engelska, 2017

858 kr

Läs direkt efter köp

The world population is projected to reach nine billion by 2050, and in the coming years, global food demand is expected to increase by 50% or more. Higher crop productivity gains in the future will have to be achieved in developing countries through better natural resources management and crop improvement. After nitrogen, phosphorus (P) has more widespread influence on both natural and agricultural ecosystems than any other essential plant element. It has been estimated that 5.7 billion hectares of land worldwide contain insufficient amounts of available P for sustainable crop production, and P deficiency in crop plants is a widespread problem in various parts of the world. However, it has been estimated that worldwide minable P could last less than 40 years. For sustaining future food supplies, it is vital to enhance plant P use efficiency.

To bring the latest knowledge and research advances in efficient management of P for economically viable and environmentally beneficial crop production in sustainable agriculture, Phosphorus Management in Crop Production contains chapters covering functions and diagnostic techniques for P requirements in crop plants, P use efficiency and interactions with other nutrients in crop plants, management of P for optimal crop production and environmental quality, and basic principles and methodology regarding P nutrition in crop plants. The majority of research data included are derived from many years of field, greenhouse, and lab work, hence the information is practical in nature and will have a significant impact on efficient management of P-fertilizers to enhance P use efficiency, improve crop production, promote sustainable agriculture, and reduce P losses through eluviations, leaching, and erosion to minimize environmental degradation.

A comprehensive book that combines practical and applied information, Phosphorus Management in Crop Production is an excellent reference for students, professors, agricultural research scientists, food scientists, agricultural extension specialists, private consultants, fertilizer companies, and government agencies that deal with agricultural and environmental issues.

Red Soils of China

Their Nature, Management and Utilization

AvM.J. Wilson,Zhenli Hem. fl.

Inbunden, Engelska, 2004

1 620 kr

Skickas inom 10-15 vardagar

The red soils of China are typical in their chemical, physical and mineralogical characteristics of red soils in other tropical and sub-tropical areas of the world, particularly in South America, Africa and south-east Asia. For the most part, these soils are highly weathered and inherently infertile. They are acidic, nutrient deficient, poor in organic matter and have a low water-holding and supplying capacity. They cannot sustain arable cropping systems without the most careful management and are highly susceptible to soil erosion, particularly on sloping land. It is the purpose of this book to present recent research showing how the problems associated with using the red soils in China for sustainable agricultural production can be overcome, using a variety of traditional and novel approaches. In principle, these approaches should be useful in other tropical and sub-tropical countries faced with the problem of making the best use of their fragile red soil resources. The term "in principle" is used deliberately because, of course, the different red soil countries invariably operate within dissimilar socio-economic frameworks. At the present time, China may be considered to be in the process of an "industrial revolution", rather like that that took place in Britain in the late eighteenth and early nineteenth centuries.

Red Soils of China

Their Nature, Management and Utilization

AvXiaoe Yang,Zhenli Hem. fl.

E-bok

PDF, Engelska, 2004

2 049 kr

Läs direkt efter köp

The red soils of China are typical in their chemical, physical and mineralogical characteristics of red soils in other tropical and sub-tropical areas of the world, particularly in South America, Africa and south-east Asia. For the most part, these soils are highly weathered and inherently infertile. They are acidic, nutrient deficient, poor in organic matter and have a low water-holding and supplying capacity. They cannot sustain arable cropping systems without the most careful management and are highly susceptible to soil erosion, particularly on sloping land. It is the purpose of this book to present recent research showing how the problems associated with using the red soils in China for sustainable agricultural production can be overcome, using a variety of traditional and novel approaches. In principle, these approaches should be useful in other tropical and sub-tropical countries faced with the problem of making the best use of their fragile red soil resources. The term "in principle" is used deliberately because, of course, the different red soil countries invariably operate within dissimilar socio-economic frameworks. At the present time, China may be considered to be in the process of an "industrial revolution", rather like that that took place in Britain in the late eighteenth and early nineteenth centuries.

Phosphorus Management in Crop Production

AvNand Kumar Fageria,Zhenli Hem. fl.

Inbunden, Engelska, 2017

3 095 kr

Skickas inom 5-8 vardagar

The world population is projected to reach nine billion by 2050, and in the coming years, global food demand is expected to increase by 50% or more. Higher crop productivity gains in the future will have to be achieved in developing countries through better natural resources management and crop improvement. After nitrogen, phosphorus (P) has more widespread influence on both natural and agricultural ecosystems than any other essential plant element. It has been estimated that 5.7 billion hectares of land worldwide contain insufficient amounts of available P for sustainable crop production, and P deficiency in crop plants is a widespread problem in various parts of the world. However, it has been estimated that worldwide minable P could last less than 40 years. For sustaining future food supplies, it is vital to enhance plant P use efficiency.To bring the latest knowledge and research advances in efficient management of P for economically viable and environmentally beneficial crop production in sustainable agriculture, Phosphorus Management in Crop Production contains chapters covering functions and diagnostic techniques for P requirements in crop plants, P use efficiency and interactions with other nutrients in crop plants, management of P for optimal crop production and environmental quality, and basic principles and methodology regarding P nutrition in crop plants. The majority of research data included are derived from many years of field, greenhouse, and lab work, hence the information is practical in nature and will have a significant impact on efficient management of P-fertilizers to enhance P use efficiency, improve crop production, promote sustainable agriculture, and reduce P losses through eluviations, leaching, and erosion to minimize environmental degradation.A comprehensive book that combines practical and applied information, Phosphorus Management in Crop Production is an excellent reference for students, professors, agricultural research scientists, food scientists, agricultural extension specialists, private consultants, fertilizer companies, and government agencies that deal with agricultural and environmental issues.

Phosphorus Management in Crop Production

AvVirupax C. Baligar,Zhenli Hem. fl.

E-bok

PDF, Engelska, 2017

858 kr

Läs direkt efter köp

The world population is projected to reach nine billion by 2050, and in the coming years, global food demand is expected to increase by 50% or more. Higher crop productivity gains in the future will have to be achieved in developing countries through better natural resources management and crop improvement. After nitrogen, phosphorus (P) has more widespread influence on both natural and agricultural ecosystems than any other essential plant element. It has been estimated that 5.7 billion hectares of land worldwide contain insufficient amounts of available P for sustainable crop production, and P deficiency in crop plants is a widespread problem in various parts of the world. However, it has been estimated that worldwide minable P could last less than 40 years. For sustaining future food supplies, it is vital to enhance plant P use efficiency.

To bring the latest knowledge and research advances in efficient management of P for economically viable and environmentally beneficial crop production in sustainable agriculture, Phosphorus Management in Crop Production contains chapters covering functions and diagnostic techniques for P requirements in crop plants, P use efficiency and interactions with other nutrients in crop plants, management of P for optimal crop production and environmental quality, and basic principles and methodology regarding P nutrition in crop plants. The majority of research data included are derived from many years of field, greenhouse, and lab work, hence the information is practical in nature and will have a significant impact on efficient management of P-fertilizers to enhance P use efficiency, improve crop production, promote sustainable agriculture, and reduce P losses through eluviations, leaching, and erosion to minimize environmental degradation.

A comprehensive book that combines practical and applied information, Phosphorus Management in Crop Production is an excellent reference for students, professors, agricultural research scientists, food scientists, agricultural extension specialists, private consultants, fertilizer companies, and government agencies that deal with agricultural and environmental issues.

Jane Rickson, Santanu Bakshi, Chumki Banik, Zhenli He, R. J. Rickson, E. Dowdeswell Downey, G. Alegbeleye, S. E. Cooper, Telmo Jorge Carneiro Amado, Carlos Alexandre Costa Crusciol, Claudio Hideo Martins da Costa, Otávio dos Anjos Leal, Luan Pierre Pott - Instant Insights: Soil Erosion, Häftad

Del 54 - Burleigh Dodds Science: Instant Insights

Instant Insights: Soil Erosion

AvJane Rickson,Santanu Bakshim. fl.

Häftad, Engelska, 2022

691 kr

Skickas inom 5-8 vardagar

This collection features four peer-reviewed literature reviews on soil erosion in agriculture.The first chapter identifies different types of soil degradation, focussing primarily on soil erosion by water. The chapter explores the impact of soil erosion processes on soil properties that relate directly to crop growth, including soil depth, water-holding capacity, carbon content and nutrient reserves.The second chapter reviews advances in techniques used to assess and measure soil erodibility by water, such as computer aided tomography. The chapter considers the role of static and dynamic soil properties in the erosion process, as well as the challenges that have developed as a result of climate change.The third chapter assesses the impact of heavy metal contamination on soil and its consequent role in the degradation of soil health. The chapter describes the sources, impacts, indicators and remediation of heavy metal contamination, as well as the development of improved soil management practices, including effective pollution control strategies.The final chapter discusses the implementation of integrated strategies under Conservation Agriculture (CA) farming systems to restore soil productivity in degraded agricultural lands in tropical and subtropical regions in Brazil. The chapter additionally considers the adoption of CA as a tool to prevent and reverse instances of soil degradation.

Various authors, Teklit Gebregiorgis Ambaye, Mentore Vaccari, Nikola Rakonjac, Joost Lahr, Sören Thiele-Bruhn, Bjorn J. A. Berendsen, Carlos A. Faúndez Urbina, Coen J. Ritsema, G. J. Levy, Asher Bar-Tal, Eddie Cytryn, Mikhail Borisover, Santanu Bakshi, Chumki Banik, Zhenli He - Instant Insights: Soil Contaminants, Häftad

Del 122 - Burleigh Dodds Science: Instant Insights

Instant Insights: Soil Contaminants

AvVarious authors,Teklit Gebregiorgis Ambayem. fl.

Häftad, Engelska, 2026

716 kr

Kommande

This collection features four peer-reviewed reviews on major contaminants in agricultural soils.The first chapter discusses emerging technologies for remediating soil polluted with polycyclic aromatic hydrocarbon and their contamination routes. The chapter also addresses techniques for their identification and tracking, persistence and bioaccumulation in the soil and risks to and effects on human health and soil health.The second chapter provides a comprehensive overview of the pathways through which antibiotics reach the soil, the processes that influence their fate within the soil and the techniques and efforts used to predict their behaviour and fate. The chapter also offers insights from specific case studies and discusses future research directions to address environmental challenges.The third chapter addresses the risks associated with using treated wastewater in irrigation systems for crop production, including an elevation in soil water osmotic pressure, the addition of toxic ions and organic contaminants to the soil and the deterioration of the physical and hydraulic properties of soil.The final chapter reviews the impact of heavy metal contamination on soil health, focussing on its effects on soil biogeochemical processes, nutrient cycling and soil functions in crop production, environmental quality and food security. The chapter also discusses common indicators of soil contamination and remediation techniques.

Red Soils of China

Their Nature, Management and Utilization

AvM.J. Wilson,Zhenli Hem. fl.

Häftad, Engelska, 2010

1 620 kr

Skickas inom 10-15 vardagar

The red soils of China are typical in their chemical, physical and mineralogical characteristics of red soils in other tropical and sub-tropical areas of the world, particularly in South America, Africa and south-east Asia. For the most part, these soils are highly weathered and inherently infertile. They are acidic, nutrient deficient, poor in organic matter and have a low water-holding and supplying capacity. They cannot sustain arable cropping systems without the most careful management and are highly susceptible to soil erosion, particularly on sloping land. It is the purpose of this book to present recent research showing how the problems associated with using the red soils in China for sustainable agricultural production can be overcome, using a variety of traditional and novel approaches. In principle, these approaches should be useful in other tropical and sub-tropical countries faced with the problem of making the best use of their fragile red soil resources. The term "in principle" is used deliberately because, of course, the different red soil countries invariably operate within dissimilar socio-economic frameworks. At the present time, China may be considered to be in the process of an "industrial revolution", rather like that that took place in Britain in the late eighteenth and early nineteenth centuries.

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Zhenli He – författare

Phosphorus Management in Crop Production

Phosphorus Management in Crop Production

Red Soils of China

Red Soils of China

Phosphorus Management in Crop Production

Phosphorus Management in Crop Production

Instant Insights: Soil Erosion

Instant Insights: Soil Contaminants

Red Soils of China

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