作物研究2017，Vol.31Issue(2)：103-109,7.DOI:10.16848/j.cnki.issn.1001-5280.2017.02.01
土壤耕作方式对水稻产量形成特性的影响初探
Preliminary Study about the Effects of Soil Tillage Ways on the Yield Formation Characteristics of Rice
摘要
Abstract
To explore the effect of different soil tillage methods on the yield formation characteristics of double cropping rice in South China,a comparative experiment with five soil tillage ways was conducted with the varieties of Lingliangyou 211 and Weiyou 46 in Xiangtan,Hunan duing 2015,the soil tillage ways are:double cropping rice under no tillage (DN),double cropping rice under plowing (DP),double cropping rice under rotary tillage (DR),rotary tillage in early rice and no tillage in late rice (RENL),plowing in early rice and no tillage in late rice (PENL).The results showed that the yield of early rice showed the trend of plowing treatment ＞ rotary tillage treatment ＞ no tillage treatment.Yield of late rice inDP treatment was significantly higher than that of other treatments,and that in DR treatment was the lowest.There was nosignificant difference in yield of late rice among the three no tillage treatments.As for the total yield of two season rice,DPwas the highest,PENL was the second,and then was DN,RENL and DR in turn.The reason of higher yield in plowingtreatment was more tillers and effective panicles,higher leaf area,more chlorophyll content and high net photosynthetic ratein late stage.Compared to DP treatment,yield in RENL treatment was decreased by 7.29％,while it was worth to spreadand apply in southern double cropping paddy field because of its labor-saving and energy-saving.关键词
水稻/耕作方式/翻耕/免耕/旋耕/产量Key words
rice/tillage method/plowing/no tillage/rotary tillage/yield分类
农业科技引用本文复制引用
谷子寒,王元元,帅泽宇,陈平平,敖和军,屠乃美,易镇邪,周文新..土壤耕作方式对水稻产量形成特性的影响初探[J].作物研究,2017,31(2):103-109,7.基金项目
湖南省重金属污染耕地修复及农作物种植结构调整试点项目(2015年,2016年) （2015年,2016年）
国家自然科学基金项目(31401340). （31401340）
