DAP (diammonium phosphate) fertilizer is widely used as basal fertilizer in our most field crops. Most part of its phosphorus is fixed up due to alkaline, calcarious properties of our soil and becomes unavailable for current crop. There is a notion that being a high pH fertilizer, it affects soil health. I have consulted fertilizer experts who declared it as a useful and acidic fertilizer after the completion of reaction with water and micro organisms. Crops of very salt affected soils donor respond it properly. Otherwise, this is a precious fertilizer in most of the healthy soils. A huge amount of phosphorus has been accumulated in our soils due to frequent use of DAP. We have conveyed this message to our farmers that they can reduce the use of DAP if they include the regular use of organic sources and acidic material in their soils.
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