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试验结果表明,与传统水肥相比较,传统灌溉-优化施肥冬小麦主茎上四叶叶片短小叶面积减少,叶片相对较厚,叶倾角大,株型紧凑,消光系数小,冠层各层透光率较高;优化灌溉-传统施肥冬小麦主茎上四叶叶片变长叶面积增加,叶片相对较薄,叶倾角小,株型较为披散,消光系数大,冠层各层透光率较低;优化水肥及秸秆还田优化水肥冬小麦主茎上四叶叶面积略微减少,叶片厚度、叶倾角、消光系数及各层透光率与传统水肥差异很小,株型较好;各处理间经济产量无显著性差异。
The results showed that compared with the traditional water and fertilizer, the short-leaf area of four-leaf blades of traditional irrigation-optimized fertilization winter wheat was decreased, the leaves were relatively thick, the leaf inclination was large, the plant type was compact, the extinction coefficient was small, The irrigation efficiency of wheat increased with the increase of irrigation rate and irrigation rate. The optimum conditions of irrigation and conventional fertilization were as follows: the area of four leaves in the main stem increased, the leaf area increased, the leaves were thinner, the leaf inclination was smaller, Optimized water and fertilizer and straw to optimize the water and fertilizer Winter wheat main stem four leaf area slightly reduced, leaf thickness, leaf inclination, extinction coefficient and the transmittance of each layer with the traditional water and fertilizer is very small, better plant type; No significant difference.