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以舜麦1718、良星99、济麦22、晋麦84号为试验材料,进行不同N素水平,不同N,P,K配方施肥试验,为运城小麦高产提供施肥配比依据。结果表明,在运城地区,每公顷施尿素量在150~450 kg范围内,小麦产量随施肥量逐渐增加而增加,当每公顷施尿素达600 kg时,小麦出现倒伏,产量反而减少;每公顷穗数随施尿素量的增加而提高;配方施肥试验中,N225P150K75(每公顷纯氮225 kg,纯磷150 kg,纯钾75 kg)配方同时增施有机肥,产量最高,与其他施肥配方间差异达到显著水平,说明该施肥配方适用于运城地区小麦高产。
Taking Shunmai 1718, Liangxing 99, Jimai 22 and Jinmai 84 as test materials, fertilization experiments with different N levels, different N, P, and K formulas were carried out to provide fertilization basis for high yielding wheat in Yuncheng. The results showed that in Yuncheng area, the amount of urea applied per hectare was in the range of 150-450 kg and the yield of wheat increased with the increasing of fertilizer rate. When the urea content per hectare reached 600 kg, the yield of wheat decreased and the yield decreased. The spike number increased with the increase of urea application. In the formula fertilization experiment, the formula of N225P150K75 (225 kg nitrogen per hectare, 150 kg pure phosphorus and 75 kg pure potassium) increased the organic fertilizer at the same time with the highest yield. Compared with other fertilization formulas The difference reached a significant level, indicating that the fertilizer formula is suitable for high yield wheat in Yuncheng area.