SOIL-PLANT RELATIONSHIPS AND PLANT NUTRITION
نویسندگان
چکیده
منابع مشابه
Division S-4—soil Fertility & Plant Nutrition
cially if manure is surface-applied (Thompson et al., 1987). Conversely, denitrification losses of manure N Repeated N applications to field crops, either as inorganic fertilizers are increased by incorporation or injection (Comfort et or animal manures, can lead to N buildup in soils with potential longterm environmental hazards. The objective of this 3-yr field study al., 1988), and because o...
متن کاملIsotopes in Soil-plant Nutrition Studies
Study of soil characteristics and of processes by which plants take up nutrients from the soil is therefore extremely valuable in devising effective methods of farming. For example, such study can determine which fertilizer and how much of it should be applied to a particular soil, or when and how it should be applied. Similarly, a study of soil moisture can indicate the exact irrigation needs ...
متن کاملSoil-plant Relationships in the Tropics
As commonly defined, the tropics comprise that region of the earth lying between the Tropics of Cancer and Capricorn, constituting 38% of the larid surface (5 x 109 ha). The tropics may also be defined as those areas with mean temperatures greater than 18'C in all mor.ths of th. year. A third definition of the tropics specifies those areas with soils in which the tempera ture at a depth of 50 ...
متن کاملSome Relationships of Soil to Plant and Animal Nutrition—The Major Elements
plants on which they Jeed, Ij the plant does not contain enough of a given element because of a deficiency in the soil, the animal will not he properly nourished, This has been proved in the case of some phosphorus-deficient areas where livestock develop marked symptoms of disease. It emphasizes the importance of studying the ways in which plant composition is affected hy soil composition and o...
متن کاملSoil Fertility and Plant Nutrition in the Tropics and Subtropics
This book is published jointly by the International Potash Institute (IPI) and the International Fertilizer Industry Association (IFA). It discusses the possibilities and constraints to food production on the many different soil types found in tropical and subtropical countries. By indicating ways in which crop nutrition and hence crop production can be increased on these soils in developing co...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 1957
ISSN: 0002-9122
DOI: 10.1002/j.1537-2197.1957.tb08211.x