山西农业大学学报（自然科学版）2017，Vol.37Issue(12)：837-840,848,5.
麦棉套作模式下差量播种对小麦抗倒性能及产量的影响
Effects of differential seeding rate on lodging-resistant traits and yield components of wheat under wheat-cotton intercropping system
摘要
Abstract
[Objective]Through adjusting seeding rate of marginal row and inner row under wheat-cotton intercropping system,newmethod was explored to decrease wheat lodging and increase wheat yield.[Methods]The experiments were conducted in Quzhou station during 2016-2017.A split plot experiment involving two seeding rates(225.0 kg· hm-2 and 300.0 kg·hm-2) of marginal row and three seeding rates(150 kg· hm-2,225.0 kg· hm-2,300.0 kg· hm-2) of inner row was designed.The diameter,broken tension of wheat straw and wheat lodging ratio,yield components were investigated.[Results]With increasing of seeding rate the lodging-resistant traits decreased,and the spike number per unit area,wheat yield increased,but wheat grains per ear and thousand-grain weight decreased.There was a significant interaction between the seeding rates of marginal row and inner row.The increase of seeding rate for inner row restrained the growth of wheat for marginal row,also the increase of seeding rate for marginal row restrained the growth of wheat for inner row.Above all,when seeding rate was 300 kg·hm-2 for marginal row and 150 kg·hm-2 for inner row,the wheat yield was the highest and lodging ration was nearly the lowest.[Conclusion]Themethod of increasing seeding rate for marginal row and decreasing seeding rate for inner row was beneficial to decrease wheat lodging and increase wheat yield.关键词
麦棉套作/差量播种/倒伏/产量构成Key words
Wheat cotton intercropping system/Differential seeding rate/Lodging/Yield components分类
农业科技引用本文复制引用
王树林,王国平,王燕,张谦,冯国艺,雷晓鹏,梁青龙..麦棉套作模式下差量播种对小麦抗倒性能及产量的影响[J].山西农业大学学报（自然科学版）,2017,37(12):837-840,848,5.基金项目
科技部支撑计划(2013BAD05B00) （2013BAD05B00）
农业部行业专项(201503121) （201503121）
棉田高效技术体系研发与示范(HBCT2013030208) （HBCT2013030208）
