山东农业科学2024，Vol.56Issue(6)：30-39,10.DOI:10.14083/j.issn.1001-4942.2024.06.005
秸秆还田和耕作方式对玉米光合特性及产量的影响
Effects of Straw Returning and Tillage Methods on Photosynthetic Characteristics and Yield of Maize
摘要
Abstract
This experiment aimed to study the effects of straw returning and tillage methods on photosyn-thetic characteristics and yield of maize by split-plot design,and to provide reasonable tillage method for maize yield improvement.Under the precondition of straw returning and traditional cultivation pattern,four tillage treatments were set as rotary tillage after deep loosening(SS-RT),rotary tillage(RT),deep loosening(SS)and no-tillage(NT),and their effects on photosynthetic parameters,relative chlorophyll content,leaf area in-dex,dry matter accumulation and yield of spring and autumn maize in 2022 were compared.The results showed that compared with traditional cultivation,under straw returning,the leaf area index of SS-RT,RT,SS and NT treatments increased by 11.01%,6.48%,8.24%and 8.75%respectively,the relative chlorophyll content increased by 5.96%,5.14%,5.27%and 6.49%respectively,the net photosynthetic rate increased by 7.57%,9.04%,8.90%and 9.39%respectively,the spike dry mater weight increased by 9.03%,5.40%,6.73%and 8.78%respectively,the annual yield increased by 2.92%,4.73%,2.28%and 3.52%respective-ly.The mean of spring and autumn yields under SS-RT treatment with straw returning increased by 2.38%,12.26%and 17.01%compared with RT,SS and NT treatments,respectively.In summary,rotary tillage after deep loosening,rotary tillage,loosening and no-till under straw returning all improved the photosynthetic ca-pacity,dry matter accumulation and annual yield of maize,and the best treatment was straw returning com-bined with rotary tillage after deep loosening.关键词
玉米/秸秆还田/耕作方式/光合特性/产量Key words
Maize/Straw returning/Tillage method/Photosynthetic characteristics/Yield分类
农业科技引用本文复制引用
高鹏举,李发桥,唐国荣,石达金,谭贤杰,程伟东,周勋波,吕巨智..秸秆还田和耕作方式对玉米光合特性及产量的影响[J].山东农业科学,2024,56(6):30-39,10.基金项目
国家现代农业产业技术体系南宁玉米综合试验站项目(CARS-02-86) （CARS-02-86）
国家现代农业产业技术体系广西创新团队建设专项(nycytxgxcxtd-2021-04-04) （nycytxgxcxtd-2021-04-04）
广西农业科学院科技发展基金项目(桂农科2021JM44) （桂农科2021JM44）
