Advances in agronomy volume 17

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... marketing methods and innovations are exerting tremendous impact The world fertilizer industry has become increasingly technologically minded It is more sophisticated and more e5cient Research in. .. would increase from 5.5 million short tons in 1960 to 27.9 million in 1980 Recent reports indicate that steps are being taken in these countries, especially in the U.S.S.R., markedly to increase... achieved This would increase the N, PzO5, and KzO consumption from 3.0 million short tons in 1960 to 31.2 million in 1980 The task of producing these kinds of increases in nonindustrialized countries
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Xem thêm: Advances in agronomy volume 17 , Advances in agronomy volume 17 , II. Fertilizer Consumption and Use, Chapter 2. BREEDING WHEAT FOR QUALITY, III. Milling and Baking Research Laboratories, III. Criteria Used in Classifying Organic Soils, IV. Properties of Organic Soils, V. Morphology of Organic Soil Horizons, VI. Bases for Proposed Classification System, III. Characteristics of the Soils of the Mountains of Colorado, Chapter 6. PROGRESS AND PROBLEMS IN TREE FRUIT AND NUT PRODUCTION, Chapter 7. STRUCTURAL CHEMISTRY OF SOIL HUMlC SUBSTANCES, III. Chemical Methods of Functional Group Analysis, V. Humic Acid-Like Materials from Geologic Deposits Not Classified as Soils

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