【摘要】 介绍在小麦、玉米一年两熟条件下,玉米秸秆整株还田对土壤水肥及小麦生长发育的影响。重点介绍玉米整株还田技术、所需配套机具及操作工艺、技术要点和3年的实验结果。研究结果表明:整株还田,秸秆经过一年的腐解,腐解率达90％以上。玉米整株还田耕深20cm,秸秆在土壤8cm深度以下秸秆覆盖率达95％以上,能够保证冬小麦播种质量,小麦播种出苗后基本苗及分蘖测定分别比粉碎还田(对照)增加23株和0.2个。小麦生育期干物质和千粒重分别增加8.95％和1.33％,小麦产量提高3.18％。更多还原

【Abstract】 The effects of returning whole corn stalk into soil on the soil moisture and manure and wheat growth in wheat/ corn double cropping area was studied.This paper emphasized on introducing the techniques of returning whole com stalk into soil, necessary agricultural machinery,operational technology. Three-year experimental results shows that the rotten rate of corn stalk in oneyear can reach more than 90% o If plough depth is more than 20cm,95% of corn stalk can be covered under soil of 8cm.This can guarantee the seeding quality of wheat. The basic seedlings counts and tillers are increased by 23 and 0.2 comparing with traditional tillage. The dry matter and 1000-grain weight was increased by 8.95% and 1.33% .The winter wheat yield increased by 3.81 %. The input decreased by 65.7% and 50% respectively comparing with com compost and chopped rescdues.更多还原