耕作方式对小麦群体动态·干物质及产量的影响

目的]研究耕作方式对小麦生长发育的影响。方法]以郑麦7698为试验材料,分析不同的耕作方式对小麦群体、穗粒数、千粒重和产量的影响。结果]秸秆粉碎还田+翻耕(25 cm左右)+耙实后播种处理基本苗少,但个体发育较好,地上部分生长健壮,能够增加幼苗生长量、小麦穗粒数和千粒重,小麦生育后期,干物质积累增加,产量相对较高,是最理想的耕作方式。结论]该研究可为整地方式选择、改善整地质量提供依据。

Influence of Tillage Methods on Population Dynamic,Dry Matter and Yield of Wheat

Objective] To study the effects of tillage methods on growth and development of wheat.Method]Using Zhengmai 7698 as experimental material,the effects of tillage methods on population,grain number per spike,1 000-grain weight and yield of wheat were studied.Result] The treatment through returning straw crushing + tilling (25 cm) + harrow real after sowing was the most ideal way of farming.Through the application of this treatment,basic seedlings were less,but plants grew well,aerial part of plants were strong,seedling's increment,grain number per spike and 1 000-grain weight increased,dry matter accumulation increased in the late growth stage,the production was relatively high.Conclusion]The reasearch could give reference for selecting land preparation methods and improving quality of soil preparation.