Before developing the fertigation schedule of any high value crop can we not take total nutrient uptake as a base nutrient requirement for the specific crop, because most of FUE of the most of nutrients like NK is much higher than the normal application method except P, and we also suppliment the micro nutrient requirement through fertigation as per plant uptake.
Dear Mr Gaurav
the nutrients composition within fertigation should be in relation to nutritional need of crop, soil nutrients availability, soil physical/physico-chemicals characteristics. Through fertigation, we are able to enhance water and nutrients use efficiencies.
regards
I agree with Dr .Kalra,we have to test the soils in the beginning before going for fertigation. Crop uptake requirement may guide you to formulate the fertigation schedule.If the soils are initially deficient in a nutrient like phosphorus ,it may further get depleted.If the soil is adequate ,then your fertigation schedule may work.If the soil is very high in P or some micronutrients, then some adjustments can be made in the doses to be applied through fertigation.
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