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2) With the help of pH state the importance of soil testing in agriculture field? |
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Answer» Soil pH is a measure of the relative acidity or alkalinity of the soil solution, and is expressed on a 14-point scale. Soil acidity increases as pH drops below 7 (neutral pH) and soil alkalinity increases as pH increases above 7. Soil pH affects many aspects of crop production, including nutrient availability, potential for metal toxicity, efficacy and degradation of soil-applied herbicides, and nitrogen fixation by leguminous crops. |
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