Description
Phosphorus influences the vigor of plants and improves the quality of crops. It encourages the formation of new cells, promotes root growth (particularly the development of fibrous roots), and hastens leaf development, the emergence of ears, the formation of grains, and the maturation of crops. It also increases resistance to diseases and strengthens the stems of cereal plants, thus reducing their tendency to lodge. It offsets the harmful effects of excess nitrogen in the plant. When applied to leguminous crops, it hastens and encourages the development of nitrogen fixing nodule bacteria.
If phosphorus if deficient in the soil, plants fail to make a quick start, do not develop a satisfactory root system, remain stunted and sometimes develop a tendency to show a remain stunted and discoloration on the stem and foliage owing to an abnormal increase in the sugar content and the formation of anthocyanin. Most of the Phosphorus fertilizers are water soluble because these fertilizers are made by treating rock phosphate with sulphuric acid, it does not remain this way very long after it is applied to the soil, The deficiency of this element is not so easily recognized as that of nitrogen. This process of available phosphorus being made unavailable to plants is called “Phosphorus fixation”.



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