Soil Fertility Evaluation and Control

Soil Fertility Evaluation and Control
By:Charles A. Black
Published on 1993-04-27 by AMACOM Div American Mgmt Assn

Nutrient supplies and crop yields: response curves. Liebig's |law of the minimum|. Mitscherlich's |law of physiological relationships or |effect law of the growth factor|. Factors affecting the shape of response curves. Limitations of response functions. Other response functions. Selecting a response function. Response functions compared. Statistical computations. Practical applications. Yield versus nutrient-uptake plots. Literature cited. Economics of fertilization. Optimum quantity of fertilizer. Economic principles applied to response functions. Maximum profit from fertilization. Minimum applications of fertilizer. Fixed costs. Allocating fertilizers among crops. Allocating funds among fertilizers. Theory versus practice. Environmental aspects. Literature cited. Plant testing and fertilizer requirement. Qualitative diagnosis of deficiencies. Course of nutrient absorption and dry matter production. Nutrients and photosynthesis. Concentration of nutrients and related substances. Nutrient ratios. Comparing evaluation systems. Concluding remarks. Literature cited. Soil testing and fertilizer requirement. The availability concept. Biological indexes of availability. Chemical indexes of availability. Fertilizer requirement. Literature cited. Fertilizer evaluation. The biological assay concept. Biological assay of fertilizers. Chemical evaluation of fertilizers. Literature cited. Residual effects. Nutrient differences. Increasing measurement precision The time effect. Soil effects. Crop effects. Fertilizer effects. Cumulative effects. Evaluating accumulated residues. Separating nutrient effects from yield-potential effects. Models. Economics of residual effects. Annual versus intermittent applications. Literature cited. Fertilizer placement. Principles. The de Wit theory. The Steenbjerg theory. The Barber theory. Nonuniformity of broadcast applications. The Burns theory. Root-fertilizer contact and the Costigan theory. Root-fertilizer contact and the Greenwood theory. Nutrient translocation in plants and the de Wit theory. The depth factor. The Geraldson system. Foliar fertilization and other application methods. Application of manure. Literature cited. Soil testing and lime requirement. The nature of soil acidity. Forms of soil acidity. Chemical lime requirement. Integrated factors. Biological lime requirement. Literature cited.

This Book was ranked at 20 by Google Books for keyword fertilizing for maximum yield.

Book ID of Soil Fertility Evaluation and Control's Books is mRv5okAZdnIC, Book which was written byCharles A. Blackhave ETAG "HFxb8myCleM"

Book which was published by AMACOM Div American Mgmt Assn since 1993-04-27 have ISBNs, ISBN 13 Code is 9780873718349 and ISBN 10 Code is 0873718348

Reading Mode in Text Status is false and Reading Mode in Image Status is false

Book which have "746 Pages" is Printed at BOOK under CategoryNature

This Book was rated by 1 Raters and have average rate at "5.0"

This eBook Maturity (Adult Book) status is NOT_MATURE

Book was written in en

eBook Version Availability Status at PDF is falseand in ePub is false

Book Preview