优化施肥对小麦品质和产量的效应研究

采用正交旋转组合设计,针对N、P、K、Zn 4种肥料对小麦产量和品质的效应进行探讨,结果表明:N、P对产量都达显著正效应,N对湿面筋含量达极显著正效应,P与湿面筋含量呈显著负效应,K、Zn对产量和品质效应微弱。4种肥料对产量的影响顺序为:N>P>Zn>K,对湿面筋含量的影响顺序为:N>P>K>Zn。小麦产量和品质都较理想的施肥区间为N 252.8～294.2 kg/hm2,P 111.0～139.1kg/hm2, K145.8～153.0kg/hm2, Zn 9.8～12.1kg/hm2, 合理的配比为N:P2O5:K2O:ZnSO4=1:0.46:0.55:0.04

EFFECTS OF OPTIMIZED FERTILIZATION ON QUALITY AND YIELD OF WHEAT

Based on the quadrature rotary composition designing method, an experiment was conducted on effects of application of Nitrogen, Phosphate, Potassium and Zinc, respectively, on yield and quality of wheat..The Results indicate that yield is significantly and positively related to N and P application, and wet Gluten content to N, but significantly and negatively to P.,The effect of K and zn application on yield and quality of wheat is very limited.In terms of effect on yield,the four kinds of fertilizer are in a decreasing order, i.e. N > P > Zn > K, while in terms of effect on quality,the content of wet Gluten, the order is N > P > K > Zn. Analysis of the results shows that reasonable yield and quality can be obtained when the application rate of N ranges within 252.8~294.2kg/hm², of P 111.0~139.1 kg/hm²,of K 145.8~153.0 kg/hm², and of Zn 9.8~12.1kg/hm² and that a reasonal proportion of the four nutrient elements N,P₂O₅,K₂O and ZnSO₄ in formulated fertilization should be 1:0.46:0.55:0.04.