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研究结果表明:(1) 冬小麦苗期和生育后期是吸收锌营养较多时期。其各生育阶段吸锌绝对量呈马鞍型曲线分布。(2) 冬小麦一般是幼嫩组织和器官锌含量高。苗期麦株锌的分配较均匀;拔节期茎中锌的分配量较多;抽穗后吸收的锌大部分分布在穗部。(3) 全省五十一个县,142个小麦锌肥试验点都有增产效果,其中有效锌含量越低的土壤施锌肥后增产幅度大。说明土壤有效锌含量是影响小麦增产的重要因素。在施肥技术中,拌种法的用肥量少,经济效益高。
The results showed that: (1) Winter wheat seedling stage and late growth stage is the period of zinc absorption. Absorption of zinc in each stage of its growth was saddle-shaped curve. (2) Winter wheat is generally high in young tissues and organs of zinc. The distribution of zinc in seedling wheat was more uniform; the allocation of zinc in stems was more at jointing stage; most of zinc absorbed after heading was distributed in the ear. (3) The production of 142 wheat zinc fertilizers increased in 51 counties and fifty-one counties, and the soil with the lower effective zinc content increased greatly after applying Zn fertilizer. This shows that effective zinc content in soils is an important factor that affects wheat yield. In the fertilization technology, seed dressing method with less fertilizer, high economic benefits.