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在生产条件下 ,应用三因素五水平二次通用旋转回归组合设计 ,研究了黄淮麦区晋南片石灰性褐土上 ,钾、锌、锰配施对冬小麦产量及品质的影响。结果表明 ,在特殊干旱的条件下 ,三种肥料适宜配施提高了冬小麦越冬期茎叶还原糖含量 ,从而使冬小麦的抗寒性增强 ,保证冬前分蘖数 ;明显降低了旗叶水分饱和亏 ,增强了其抗旱性 ,大大提高了冬小麦产量 ,并改善了籽粒品质。将产量大于 4 5 0 0 .0 0 kg/ hm2 、蛋白质含量大于 13.0 %、湿面筋大于4 5 .0 %作为寻优指标 ,进行频数分析 ,得到最优配比方案为 :KCl4 6 7.10～ 5 76 .75 kg/ hm2 ,Zn SO4 .7H2 O90 .4 5～10 8.4 5 kg/ hm2 ,Mn SO4 .H2 O72 .30～ 10 3.80 kg/ hm2。
Under the conditions of production, the three-factor and five-level quadratic general rotation regressive combination design was applied to study the effects of potassium, zinc and manganese fertilization on the yield and quality of winter wheat in calcareous cinnamon soil in Jinnan section of Huang-Huai-Mai region. The results showed that under the conditions of special drought, the three kinds of fertilizers were suitable to improve the winter wheat reducing sugar content during winter, so as to enhance the cold resistance of winter wheat, ensure the number of tillers before winter, and significantly reduce the flag leaf water saturation deficit , Enhanced its drought resistance, greatly increased winter wheat yield and improved grain quality. The optimal ratio was obtained when the yield was more than 45.0 0 0 0 0 kg / hm2, the protein content was more than 13.0% and the wet gluten was more than 45 .0%. The optimal ratio was KCl4 6 7.10-5 76.75 kg / hm2, Zn SO4 .7H2 O90 .4 5 to 10 8.4 5 kg / hm2, Mn SO4 .H2 O72 .30 to 10 3.80 kg / hm2.