陕西关中一年两熟地区保护性耕作关键技术综合效应研究——Ⅱ.对两季作物生长发育及产量产值的影响  

Comprehensive effect of the main practices of conservation tillage for double cropping system in Guanzhong basin of Shaanxi Province—— Ⅱ.Effect of main practices on the growth, yield and output value of the double cropping system

作　　者：朱琳[1] 张炜[1] 党小选[1] 刘永利[1] 黄耀明 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]陕西省宝鸡市农机管理推广中心,陕西宝鸡721006

出　　处：《干旱地区农业研究》2014年第1期11-17,共7页Agricultural Research in the Arid Areas

基　　金：陕西省农机局重点项目"杨凌农业机械化新技术新机具试验示范区建设"

摘　　要：针对陕西关中一年两熟地区应用保护性耕作技术存在的问题,以冬小麦传统翻耕技术为对照,研究了5种类型10种耕作关键技术对作物生长发育及产量、产值的影响。结果表明:(1)在裸地深松间隔年限三技术中,两季作物均以隔年深松的生长发育状况最好,产量、产值最高,居11项处理第3位;(2)在裸地与秸秆覆盖旋耕两技术中,两季作物均以秸秆覆盖旋耕的生长发育状况最好,产量、产值最高,居11项处理第6位;(3)在秸秆覆盖深松深度两技术中,两季作物均以秸秆覆盖深松的生长发育状况最好,产量、产值最高,居11项处理第1位;(4)在裸地与秸秆覆盖免耕两技术中,两季作物均以裸地免耕的生长发育状况最好,产量、产值最高,居11项处理第7位;(5)在翻耕两技术中,两季作物均以秸秆还田翻耕的生长发育状况最好,产量、产值最高,居11项处理第2位。In order to cope with the problems facing conservation tillage practices in double cropping system in Guanzhong basin, Shaanxi Province, we studied the effects of five types and ten main tillage practices on crop growth, yield and output value of the double cropping system, and compared them with the conventional method. The results showed that high yield and output value gained in both winter wheat and summer maize by using subsoiling every other year in subsoiling interval time experiment on land without straw mulching, with subsoiling every other year ranking third among eleven techniques. Rotary tillage with straw mulching showed higher values compared with rotary tillage with no straw mulching, and ranked sixth. Deep subsoiling was better than shallow subsoiling under straw mulching, and it ranked first. Yield and output value of no-tillage and no straw mulching were higher than no-tillage and straw mulching. Between the two methods of plowing tillage, straw returning was better and ranked second among all the 11 practices.

关 键 词：关中地区 一年两熟 保护性耕作 关键技术 生长发育 产量 产值 

分 类 号：S341[农业科学—作物栽培与耕作技术]