DAP vs MAP | How to use DAP and MAP Phosphatic fertilizers in different soils | Abid Ali Agrarian

In this video, I will give a comparison between DAP and MAP Phosphatic fertilizers (DAP vs Map) and their use in our soils.
DAP (Di ammonium phosphate) and MAP (Mono ammonium phosphate) both are excellent sources of phosphorus.
Phosphorus nutrient is required by crop plants to;
1) elongate and establish roots
2) early plant development
3) source of energy for many plant functions
DAP contains;
Phosphorus 46%
Nitrogen 18%
pH 7.5 to 8
whereas
MAP contains;
Phosphorus 50%
Nitrogen 10%
pH 3.5 to 4
So we can say, DAP and MAP both contain nearly equal quantities of phosphorus and nitrogen but the major difference is in its nature which is basic in the case of DAP and acidic in the case of MAP.
Our soils are alkaline so acidic fertilizers perform excellent as compared to basic fertilizers. MAP uptake in plants is higher as compared to DAP. DAP fixation in soil is higher than MAP.
How to use DAP and MAP in fields?
DAP should be applied at the time of land preparation or seed sowing whereas MAP should be applied in 2 to 3 splits. Half dose of MAP fertilizer can be applied at land preparation time and half dose at first irrigation.
DAP fertilizer should be applied in sandy soils and well drained loamy soils whereas MAP is the best phosphatic fertilizer source for clayey soils, hard soils, saline soils and saline sodic soils.
So in this video, you may find the benefits of DAP and MAP fertilizers in details.
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