运城地区冬小麦高产技术研究

Study on High-yield Technology of Winter Wheat in Yuncheng Area

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。

Shunmai 1718, Liangxing 99, Jimai 22 and Jinmai 84 as test material, the test was done in different N levels and different N, P, K formula fertilization to provide the basis for wheat high yield fertilization in Yuncheng area. The results indicated that wheat yield with the per hectare of urea from 150 kg to 450 kg gradually increased. When the per hectare of urea was 600 kg, the wheat yield decreased, because of the lodging of wheat in Yuncheng area. The number of ears per hectare increased with per hectare of urea increased. There was significant difference between N2225P150oK75 （pure nitrogen 225 kg, pure phosphorus 150 kg, pure potassium 75 kg） formula and application of organic fertilizer and other formulations, its yield was the highest.