Fertility of the soil
Soil's fertility is its capacity to sustain plant life with required nutrients. Fertility of soil decreases when the same crop is grown in the same land repeatedly, or by soil erosion. Erosion is the physical removal of soil particles from their original places and transportation to so..
Nitrogen Fixing Organisms
. Such bacteria are found - where grasses, cereals are grown. They fix atmospheric nitrogen and make it available to crops. Fixation of nitrogen by such bacteria may occur naturally in very ideal situation. But such fixation process may have to be enhanced by external application of bacte..
Green manures
Green manure refers to supplying the plant nutrients by application of living plant material to the soil. The nutrients are made available after decomposition of green manure in soil. Many plants have been identified for their potentiality as green manure. The green manures are normally applied wh..
Concept of Nutrient Availability
), from situation to situation (based on soil pH, available water, temperature). As there are large number of varying types of soils in varying climatic situations being used to grow varieties of crops with differing abilities to make use available nutrients, the expressions of crops..
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