玉米秸秆整株还田对小麦生长发育及产量的影响

简述了玉米整株还田技术、所需配套机具和工艺特点以及对小麦生长发育及产量效应的影响,玉米秸秆整株还田经过1年腐解其腐解率达90％以上。玉米整株还田耕深20cm,秸秆在8cm土层以下覆盖率达95％以上,能保证冬小麦播种质量,小麦基本苗及分蘖测定分别比粉碎还田增加23株和0.2个,小麦生育期干物质量及千粒重分别增加8.95％和1.33％,小麦产量提高3.81％。

Influence of returning whole corn stalk into soil on wheat growth and its yield

This paper introduces the techniques of returning whole corn stalk into soil,necessary agricultural machinery,operational technology,and their influence on wheat growth and its yield.The study shows that the rotten rate of corn stalk in one-year rotten period can reach more than 90 %.If plough depth is more than 20cm,95 % of corn stalk can be covered under soil with a depth of about 8cm.This can guarantee the seeding quality of wheat.The basic seedings and tillers are increased by 23 and 0.2 comparing with traditional way.The dry matter weight and 1000-grain weight by returning whole corn stalk into soil can increase 8.95 % and 1.33 %.The winter wheat yield can increase 3.81%.