为研究微肥对花生产量的影响, 本试验采用四元二次回归正交旋转组合设计, 在花生田间配施Cu、Zn、B、Mo四种微肥.研究结果表明:4个参试因子对花生产量影响顺序是:钼肥>铜肥>锌肥>硼肥.频率分析结果显示, 花生产量大于4049.57 kg/hm2组合方案为:硫酸铜为7.5～15 kg/hm2, 硫酸锌为22.5～30 kg/hm2, 硼砂为16.875～22.5 kg/hm2, 钼酸铵为0.75～1.125 g/hm2;当组合方案为硫酸铜15 kg/hm2、硫酸锌30 kg/hm2、硼砂22.5 kg/hm2和钼酸铵1.125 kg/hm2时的产量高达5450 kg/hm2, 与回归模型计算的结果 (5808.97 kg/hm2) 接近.因此, 四种微肥配施的最高产量施肥组合方案为:铜肥7.5～15 kg/hm2, 锌肥22.5～30 kg/hm2, 硼肥16.875～22.5 kg/hm2, 钼肥0.75～1.125 kg/hm2, 其中最优组合方案为:铜肥15 kg/hm2、锌肥30 kg/hm2、硼肥22.5 kg/hm2和钼肥1.125 kg/hm2.%Applied four trace fertilizers Cu, Zn, B and Mo in peanut field to study the effect of trace fertilizer on peanut yield by means of quaternary quadratic regression orthogonal rotation design. Results indicated that the order of influence of four tested factors on peanut yield was: molybdenum fertilizer>copper fertilizer>zinc fertilizer>boron fertilizer. The frequency analysis showed that when the combination scheme was copper sulfate 7.5～15 kg/hm2, zinc sulfate 22.5～30 kg/hm2, borax 16.875～22.5 kg/hm2 and ammonium molybdate 0.75～1.125 g/hm2, the peanut yield exceeded 4049.57 kg/hm2; when the combination scheme was copper sulfate15 kg/hm2, zinc sulfate 30 kg/hm2, borax 22.5 kg/hm2 and ammonium molybdate 1.125 kg/hm2, the yield was up to 5450 kg/hm2, approaching the results of regression model calculation (5808.97 kg/hm2). Therefore, the combinative application of four trace fertilizers was copper fertilizer 7.5～15 kg/hm2, zinc fertilizer 22.5～30 kg/hm2, boron fertilizer 16.875～22.5 kg/hm2, molybdenum fertilizer 0.75～1.125 kg/hm2, and the optimum combination scheme was copper fertilizer 15 kg/hm2, zinc fertilizer 30 kg/hm2, boron fertilizer 22.5 kg/hm2 and molybdenum fertilizer 1.125 kg/hm2.
展开▼
