Yield response of NPK fertilizers and soil fertility status of Farmers' field for peanut
1985
Shin, C.W. | Rhee, K.M. | Lee, C.S. | Park, J.K. (Rural Development Administration, Suwon (Korea R.). Agricultural Sciences Inst.) | Ko, J.Y. (Rural Development Administration, Suwon (Korea R.). Research Bureau)
Three field experiments were conducted to define the optimum levels, yield responses and fertilization efficiencies of NPK fertilizers on peanut and survey on fertility status of 150 farmers' peanut fields was carried out for 3 years. The range of optimum rates of N, P2O5 and K2O fertilizers on peanut were 5.2 - 9.0, 64 - 21.0, 8.5 - 15.0 kg/10a, respectively. The effect of NPK application were 23, 8, 16% and production efficiencies of each kg of NPK fertilizers were 6.0, 1.8, 3.4 kg, respectively
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