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应用正交旋转组合设计进行试验,获得水稻神桂39氮(N)、磷(P_2O_5)、钾(K_2O)肥的效应方程:=410.5610+2.9225x_1+7.5815x_2+11.0171x_3+0.8750x_1x_2-0.6250x_1x_3-2.1250x_1x_3-29.0730 x_1~2+4.7829 x_2~2+4.0469 x_3~2利用所获得的效应方程,用电子计算机计算最优施肥配方,其最高产量施肥配方为:N=6.250千克/亩。P_2O_5=6.250千克/亩,K_2O=4.720千克/亩,产量为457.48千克/亩。其最佳施肥配方为:N=4.720千克/亩,P_2O_5=0.065千克/亩,K_2O=9.900千克/亩,产量为439.24千克/亩。
The orthogonal rotation combination design was used to test the effect equation of rice Shen Gu 39 Nitrogen, Phosphorus (P 2 O 5) and K 2 O fertilization: = 410.5610 + 2.9225x_1 + 7.5815x_2 + 11.0171x_3 + 0.8750x_1x_2-0.6250x_1x_3 -2.1250x_1x_3-29.0730 x_1 ~ 2 + 4.7829 x_2 ~ 2 + 4.0469 x_3 ~ 2 Based on the obtained effect equation, the optimal fertilization formula was calculated by computer. The highest yield fertilization formula was N = 6.250 kg / mu. P_2O_5 = 6.250 kg / mu, K_2O = 4.720 kg / acre, yield 457.48 kg / mu. The best fertilization formula is: N = 4.720 kg / mu, P2O5 = 0.065 kg / mu, K2O = 9.900 kg / mu and the yield of 439.24 kg / mu.