Phosphorus is the major nutrient that is found in soil, If the soil remains deficient, then its effect can be seen very easily on the crop. The symptoms of deficiency are first seen on young leaves or plants.
The reason for the deficiency of phosphorus: There is deficiency of phosphorus in the soil which is rich in calcium. Due to this, the availability of phosphorus decreases even if the pH of the soil is low or high. Because in alkaline soil, the available phosphorus is less absorbed by roots . The main reason for its deficiency is that phosphorus particles are fixed in the soil and the plants are not able to absorb it. Also, if the soil moisture is low then this element is also deficient.
Its deficiency can be controlled in two ways
Organic measures: Under organic measures, organic manure which is considered a good source of phosphorus, it is very important to use it in different growth stages of the crop. Organic fertilizers like vermicompost, dung, bird’s beets and residues of old crops are rotten and added to the soil, then these crop residues are also a good source of phosphorus. Simultaneously phosphorus-rich microbes such as phosphate solubilizing bacteria.
Chemical measures: Phosphorus containing fertilizers like DAP, SSP, 12: 61: 00, NPK etc. can be used.
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