河南农业大学学报2024，Vol.58Issue(6)：1002-1011,10.DOI:10.16445/j.cnki.1000-2340.20241026.001
小麦多级镇压力调控播种单体设计与试验
Design and experiment of wheat multi-level ballast control sowing monomer
摘要
Abstract
[Objective]In order to solve the problem of uneven sowing of wheat seeds and unreal soil suppression caused by the change of soil conditions in the Huang-Huai-Hai region of China,a multi-level suppression device for wheat profiling seeding monomer was designed based on the principle of suppressive sowing of wheat wide seedling belt seed furrow.[Method]Through the analysis of the overall force of the profiling seeding monomer and the coupling simulation of EDEM-Recurdyn,the ballast pressure range of the sowing seed ditch was obtained as 100～300 N.According to the soil groove test based on the Box-Behnken experimental design method,the quadratic multinomial regres-sion model of the key parameters of the multi-level compression device of wheat sowing monomer was established.[Result]The results show that the soil bulk density before sowing were 0.97、1.12、1.25、1.35 and 1.41 g·cm-3,and the ballast pressures were 300,250,210,150 and 100 N,re-spectively.Under the optimal combination of parameters,the soil bulk density was stable at 1.3～1.4 g·cm-3 and the average pass rate of sowing depth was 96.64%,which significantly improved the seed bed conditions and the sowing quality.[Conclusion]The multi-level ballast control sowing monomer of wheat can meet the needs of sowing operations in the Huang-Huai-Hai region,and can provide equipment support and technical reference for wheat sowing in the Huang-Huai-Hai region of China.关键词
小麦播种/种沟镇压/单体设计/镇压力调节/试验研究Key words
wheat sowing/seed furrow compression/monomer design/stress regulation/experimental research分类
农业科技引用本文复制引用
何勋,王淼森,张润,祝英豪,陈岩,邵福龙,陈牙,陈星超,吕志军..小麦多级镇压力调控播种单体设计与试验[J].河南农业大学学报,2024,58(6):1002-1011,10.基金项目
河南省科技攻关计划项目(222102110330) （222102110330）
河南农业大学农业工程流动站博士后研究人员资助(10400103) （10400103）
