Crop Yield Response to Fertilizer in the United States

Crop Yield Response to Fertilizer in the United States PDF Author: Donald Bryan Ibach
Publisher:
ISBN:
Category : Crop yields
Languages : en
Pages : 304

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Crop Yield Response to Fertilizer in the United States

Crop Yield Response to Fertilizer in the United States PDF Author: Donald Bryan Ibach
Publisher:
ISBN:
Category : Crop yields
Languages : en
Pages : 304

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Fertilizer Application on Crop Yield

Fertilizer Application on Crop Yield PDF Author: Jagadish Timsina
Publisher: MDPI
ISBN: 3038976547
Category : Technology & Engineering
Languages : en
Pages : 252

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Book Description
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.

Crop Yield Response to Fertilizer in the United States

Crop Yield Response to Fertilizer in the United States PDF Author: Donald Bryan Ibach
Publisher:
ISBN:
Category : Crop yields
Languages : en
Pages : 300

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Book Description


Regional Crop Yield Response for U.S. Grains

Regional Crop Yield Response for U.S. Grains PDF Author: Mark S. Ash
Publisher:
ISBN:
Category : Agricultural estimating and reporting
Languages : en
Pages : 52

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Fertilizer Use and Crop Yields in the United States

Fertilizer Use and Crop Yields in the United States PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 600

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Book Description
Set includes revised editions of some issues.

Plant Biotechnology

Plant Biotechnology PDF Author: Agnès Ricroch
Publisher: Springer
ISBN: 331906892X
Category : Technology & Engineering
Languages : fr
Pages : 290

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Book Description
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.

Priorities for Alleviating Soil-related Constraints to Food Production in the Tropics

Priorities for Alleviating Soil-related Constraints to Food Production in the Tropics PDF Author:
Publisher: Int. Rice Res. Inst.
ISBN: 9712202240
Category : Agriculture
Languages : en
Pages : 477

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Technical Bulletin

Technical Bulletin PDF Author: James Kasal
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 32

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Modelling Potential Crop Growth Processes

Modelling Potential Crop Growth Processes PDF Author: J. Goudriaan
Publisher: Springer Science & Business Media
ISBN: 9401107505
Category : Science
Languages : en
Pages : 247

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Book Description
We dedicate this book to professor C. T. de Wit (1924 - 1993) who initiated Production Ecology as a school of thought at the Wageningen Agricultural Univer sity (see Rabbinge et at. , 1990). To acknowledge the leading role of C. T. de Wit, a recently formed graduate school at this university in Production Ecology was named after him. Production Ecology is the study of ecological processes, with special attention to flows of energy and matter as factors that determine the productivity of ecological systems. Agro-ecosystems are a special case of ecosystems which are much better suited for the productivity approach than natural ecosystems are. This is the reason for the strong role of agricultural research in production ecology. On the other hand, it must be recognized that the spatial heterogeneity of natural ecosys tems and their species richness may alter some ecophysiological relationships. However, the basic physical, chemical and physiological processes will be the same. De Wit introduced the state variable approach as the basis for simulation mod elling. In this approach the floating character of nature is schematized into a series of snapshots over time in which the states are frozen at each separate moment. The current state determines how the rates of change will lead to the next snapshot. This way of thinking enables a clear and workable representation of interacting simul taneous processes, without compromising on the mathematics.

Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate

Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate PDF Author: Sterling Robertson Olsen
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 20

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