干旱地区农业研究Issue(5)：41-45,95,6.DOI:10.7606/j.issn.1000-7601.2015.05.08
农田不同耕层构造对玉米生长发育及产量的影响
Effects of different tillage layer structures on growth and yield of maize in cropland zone in northeast of China
摘要
Abstract
A long-term positioned experiment had been conducted since 1983 in Gongzhuling empolying plow tillage (PT ) ,no-tillage (NT ) ,spacing tillage (NT ) and conventional tillage (CT ) .The seeding rate ,plant height ,stem diam-eter ,leaf number , root and yield of maize were measured in the study in odrder to investigate the effects of different tillage layer structures on growth and yield of maize .The results showed that the seeding rate was higher in spacing tillage (94 .90% ) ,than that in other treatments .The height and stem diameter of seeding stage were increased in ST .More-over ,compared to those in PT and CT ,leaf numbers in ST were significantly increased by 0 .8 and 1 .2 ,which was not significantly different from that in NT .After flowering stage ,the growth of maize was enhanced ,leaf area of plants was increased and mass of roots was improved .In particular ,compared with CT ,root numbers were increased by 16 .80 ,lay-ers of aerial root were increased by 0 .80 ,gaining 4 .60 and 20 .50 g weight in stalk root and aerial root ,respectively . Meanwhile ,the yield of maize with ST treatment was higher than that with other treatments , ranging from 8 .17% to 15 .02% and the yield of maize was lowest in CT .Therefore ,ST was the optimal layer because it could enhance the growth of seeding and delay the process of decrepitude of maize in black soil zone in Jilin province .关键词
农田/耕层构造/玉米/产量Key words
cropland/tillage layer structure/maize/yield分类
农业科技引用本文复制引用
郑洪兵,郑金玉,罗洋,李瑞平,王浩,李伟堂,刘武仁,齐华..农田不同耕层构造对玉米生长发育及产量的影响[J].干旱地区农业研究,2015,(5):41-45,95,6.基金项目
国家农业部公益性行业专项（201103001－03）；国家科技支撑粮丰课题（2012BAD04B02）；国家青年科学基金 （）
