【摘要】 依据氮、磷、钾3因素4水平15个处理组合田间试验测得的实验数据,建立了以水稻产量为目标性状的N,P,K肥力效应回归模型,模拟仿真因素取值频率分析得出:水稻产量9750~11250kg/hm2的施肥量,在施有机底肥4.5万kg/hm2的基础上,施纯N 86.12~93.87kg/hm2,P2O553.92~66.08kg/hm2,K2O 54.20~65.80kg/hm2,并通过高产水稻产量结构的数学模拟得出不同高产水平的结构指标值。更多还原

【Abstract】 Based on the test data of nitrogen,phosphonium and kalium,i.e.3 factors of 4 levels sum to 15 combinations,a fertilizing effect regression model concerning yield of rice as its objective character was established.The results of frequency analysis of simulating factor value showed that the prescription of yield of rice 9750～11250kg/hm2 should be pure N 86.12～93.87kg/hm2,P2O5 53.92～66.08kg/hm2,K2O 54.20～65.80kg/hm2,besides the organic bottom fertilizer 0.45 million kg/hm2 and the structural index value of different high yield level can be gained by mathematics simulation of high yield rice structure.更多还原