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S. BHANU PRASAD REDDY, K.V. NAGA MADHURI*, KEERTHI VENKAIAH AND T. PRATHIMA
Department of Soil Science and Agricultural Chemistry, S.V. Agricultural College, ANGRAU, Tirupati
A field experiment was carried out to study the effect of nitrogen and potassium on yield and nutrient uptake in pearl millet
during kharif, 2013. At dry land farm of S.V. agricultural college, Tirupati. Eight nutrient management practices were imposed
with three replications using RBD. All the data on yield, nutrient content and nutrient uptake were recorded as per standard
procedures. The significantly highest grain yield was recorded with 100 kg N ha-1 + 30 kg P2O5 ha-1 + 40 kg K2O ha-1 followed by
100 kg N ha-1 + 30 kg P2O5 ha-1 + 20 kg K2O ha-1. With respect to the content and uptake of nutrients by the crop, the highest
content and uptake of N, P and K were recorded with 100 kg N ha-1 + 30 kg P2O5 ha-1 + 40 kg K2O ha-1. The least content and
uptake of N, P and K was recorded with control. Similarly, in grain, the highest nitrogen, phosphorus and potassium content and
uptake was recorded with 100 kg N ha-1 + 30 kg P2O5 ha-1 + 40 kg K2O ha-1 and the least was recorded with control. However, the
highest B : C ratio was recorded with 100 kg N ha-1 + 30 kg P2O5 ha-1 + 20 kg K2O ha-1 and the lowest was noticed with control.
Based on the results, it may be concluded that for higher production, pearl millet crop has to be supplied with 100 kg N ha-1 +
30 kg P2O5 ha-1 + 40 kg K2O ha-1. However, for optimum and economic production, application of 100 kg N ha-1 + 30 kg P2O5 ha-1 +
20 kg K2O ha-1 holds good.
Pearl millet, nitrogen and potassium application, grain yield, nutrient uptake.