红壤旱地花生“3414”肥料试验施肥效应研究

研究配方施肥对红壤旱地花生农艺性状和产量的影响,分析施用氮磷钾肥的施肥效应,可以为当地生产施肥提供科学依据.结果表明,与对照（CK）相比,各配方施肥处理花生的农艺性状和产量均有提高,14个处理中以N2P2K2处理（N 120 kg/hm2、P2O5 90 kg/hm2、K2O 150 kg/hm2）的产量和产值最高,分别为4302.0 kg/hm2和28393.2元/hm2,用二次回归分析,得出最佳经济施肥量为N 111.38 kg/hm2,P2O5 89.40 kg/hm2,K2O146.51 kg/hm2.综合肥料间互效拟合的方程和最佳经济施肥量,结合红壤旱地生产实际和施肥经验,建议施肥量为N 112～121 kg/hm2,P2O5 90～98 kg/hm2,K2O 147～156 kg/hm2.

Effects of ＂3414＂ Formula Fertilization on Upland Peanut in Red Soil

An experiment was carried out to study the effect of formulated fertilization on agro- nomic characters and yield of upland peanut in red soil according to the theory of ＂3414＂ regression op- timum design by applying fertilizers of N, P2O5 and K2O. The results showed that the effect of for- mulated fertilization on agronomic characters in different treatments of upland peanut, and actual yield of each fertilizer treatment was enhanced compared to the control. In the field of middle levels of N, P2O5 and K2O, application of N 12O kg/hm2, P2O5 90 kg/hm2, K2O 150 kg/hm2 could reach the high- est yield of 4302.0 kg/hm2 and the highest economic output value of 28393.2 yuan/hm2. Regression a- nalysis recommended that the optimum fertilizing quantity of N, P2O5 and K2O are N 111.38 kg/hm2 , P2 O5 89.40 kg/hm2 and K2O 146.51 kg/hm2. N 112-121 kg/hm2, P2O5 90-98 kg/hm2 and K2O 147-156 kg/hm2 are strongly recommended by regression equation of experiment of fertilizer and the best economic fertilization.