2BMFJ系列大豆免耕覆秸精量播种机排种器选型试验研究  

Experimental Research on Seed Metering Choice of 2BMFJ Series Soybean Notillage Precision Planter

作　　者：冯夷宁 陈海涛[1] 侯守印[1] 张颖[1] 顿国强[1] 查韶辉 

机构地区：[1]东北农业大学工程学院,黑龙江哈尔滨150030

出　　处：《大豆科学》2016年第3期505-511,共7页Soybean Science

基　　金：国家现代农业产业技术体系专项(CARS-04-PS22);国家公益性行业(农业)科研专项(201303011)

摘　　要：为2BMFJ系列大豆免耕覆秸精量播种机不同机型选择适宜的排种器,比较排种器排种性能优劣,以气吸式排种器和机械式排种器为研究对象,依据GB6973-2005《单粒(精密)播种机试验方法》,在JPS^(-1)2计算机视觉精密排种器性能检测试验台上实施正交与多重比较组合试验研究,以排种器类型、作业速度和百粒重变异系数为试验因素,粒距合格指数、重播指数、漏播指数和变异系数与经济性为评价指标。结果表明:排种器类型对于株距合格指数、重播指数和变异系数均为主要影响因素,作业速度对株距漏播指数的影响最为显著。在作业速度低于5 km·h^(-1)时,机械式排种器和气吸式排种器排种性能无显著差异,当作业速度高于5 km·h^(-1)时,气吸式排种器的作业性能优于机械式排种器。在百粒重变异系数大于7.6%时气吸式排种器的排种性能均优于机械式排种器。机械式排种器可用于2BMFJ-3/6型播种机;2BMFJ^(-1)0型播种机应采用气吸式排种器。In order to improve the performance of the 2BMFJ Series No-tillage Precision Planter,the comparative tests had been carried out on the JPS-12 seed-metering test bench by GB6973-2005,with the orthogonal experiment and multiple comparison of three factors with three levels,of which two kinds of air-suction seed metering device and mechanical soybean seed metering device were selected as the object. The type of seed metering device,operating speed and CV of 100-seed weight were selected as test factors. The qualified rate,multiple rate,missed rate and variable coefficient were selected as the experimental index. The result indicated that type of seed device qualified for qualified rate,multiple rate and variable coefficient were the main factors,operating speed with missed rate influence was the most significant. Air-suction seed metering device was better than mechanical seed metering device when the operating speed faster than 5 km·h^-1and the CV of 100-seed weight greater than 7. 6%. For the 2BMFJ Series No-tillage Precision Planter,mechanical seed device could be used for 2BMFJ-3 /6,air-suction seed metering device could be used for 2BMFJ-10.

关 键 词：大豆排种器 正交试验" 多重比较 

分 类 号：S223.2[农业科学—农业机械化工程]