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Fertilité du sol --- soil fertility --- Fertilisation --- Fertilizer application --- Engrais --- fertilizers --- Substance nutritive --- Nutrients --- Amendement du sol --- soil amendments --- Matière organique du sol --- soil organic matter --- Rendement des cultures --- Crop yield --- Relation plante sol --- plant soil relations --- Engrais à oligo-éléments --- Micronutrient fertilizers --- Azote --- Nitrogen --- Phosphore --- Phosphorus --- Potassium --- Fertilizers. --- Soil fertility. --- Crops --- Nutrition. --- 631.452 --- Plants --- Soils --- Fallowing --- Fertilizers --- Soil productivity --- Artificial fertilizers --- Chemical fertilizers --- Fertilisers --- Fertilization of soils --- Fertilizers and manures --- Field crops --- Agricultural chemicals --- Soil amendments --- Soil fertility --- Nutrition --- Fertilization --- Fertilizer movement --- 631.452 Soil fertility

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soil fertility --- Physiographic soil types --- cartography --- soil types --- Pedology --- agricultural extension --- soil chemicophysical properties --- soil chemicophysical properties --- Watersheds --- Watersheds --- participatory approaches --- participatory approaches --- Rwanda

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This book is for those who are seriously engaged in the problems of tillage. Mechanical tillage plays a very important role in shaping the harvest on all soil types under normal weather conditions. The preparation of soil with specified properties (characteristics) depending on arable crops has always been a significant problem. The task of preparing soil can be solved by many types (sorts) of working bodies, tools and traction machines, and in the future by a direct effect on the soil of various types of radiation: thermal, acoustic, microwave, etc. Which technology should be chosen, which me

Tillage. --- Soil management --- Soil productivity --- Productivity, Soil --- Agricultural productivity --- Crop yields --- Crops and soils --- Plant-soil relationships --- Soil fertility --- Soils --- Soil science --- Agronomy --- Cultivation of soils --- Soil cultivation --- Soil tillage --- Tilling --- Agricultural systems --- Agriculture --- No-tillage --- Mathematical models. --- Management

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First published in 1966, Lockhart and Wiseman's crop husbandry including grassland has established itself as the standard crop husbandry text for students and practitioners alike. Radically revised and expanded, and with a new team of authors, the eighth edition confirms and extends its reputation.Part one looks at the basic conditions for crop growth with chapters on plant structure and growth, soil analysis and management, and the use of fertilisers and manures. There is also a new chapter on the influence of climate and weather. Part two surveys general aspects of crop husbandry. As

arable land --- Crops --- soil fertility --- Culture techniques --- cropping systems --- Organic agriculture --- Engineering --- Food Science and Technology --- Agriculture --- Agricultural crops --- Crop plants --- Farm crops --- Industrial crops --- Farm produce --- Plants, Cultivated --- Agronomy --- Crop science --- Plant products --- Crops. --- Agriculture. --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural