冬小麦锰、氮、钾高产配施模型及其优化施肥方案研究

Studies on the Model of Combined Application of Manganese,Nitrogen and Potassium and Optimized FertilizationScheme for the High Yields of Winter Wheat

通过潮土区田间试验,采用分设正交区组三因素五水平通用旋转组合设计研究了Mn与N、K配施对冬小麦产量的影响。结果表明,Mn与N、K合理配比可以显著提高小麦的产量。同时,N、K2 O和MnSO4 ·H2 O施用量分别为:2 2 8.2 6～313.6 4kg/hm2 ,12 3.85～2 0 6 .75kg/hm2 和35 .5 9～6 9.4 3kg/hm2 时,小麦产量可达到6 75 0kg/hm2 以上。从而为小麦高产条件下施肥提供了可靠的模型,可为农业生产起到了良好的指导作用。

Through the field experiment on Chao soil,the crossed block with quadratic regression general spinning combination design with three factors and five levels was used to study the effects of combined application of manganese and nitrogen,potassium on winter wheat yields. The results indicated that the wheat yields can be increased significantly if Mn and N?K were fertilizered in suitable rate.At one time,the range of N,K 2O,MnSO 4·H 2O separately is 228.26-313.64 kg/ha,123.85-206.75 kg/ha,35.59-69.43 kg/ha,and wheat yields can attain 6750 kg/ha.Thus a credible model has been provided at the high level of wheat,and it can get a instructive effect to the agricultural production.