农机化研究Issue(7)：171-175,5.
不同形态玉米种子分级单粒播种性能试验研究
Single Grain Sowing Performance Experimental Study on Classification of Different Forms of Maize Seed
摘要
Abstract
According to the shape and size,maize seeds of the different forms were divided into 4 levels,round big grain, round small grain, flat big grain and flat small grain , there are three kinds of single particle precision metering device , the spoon wheel ,the finger pickup,and the air suction metering device, Classification of seeding performance testing is on the bench,In different work speed , test various levels of Maize seed seed spacing qualified index, index, replay leak-age sowing index and qualified particle spacing variation coefficient, analyzes row sowing performance characteristics of each level maize seed in device of different types , provides the reference for the grading single grain sowing work with maize seed of different forms.The test results show that:the large differences of the sowing performance exist in different forms of maize seed, the sowing performance of round maize seed is better than the flat maize seed ones, the sowing per-formance of round small grain seed is better than round big ones,the sowing performance of flat big grain seed is better than the flat small ones.The seeding performance of the round big grain seed that in the air suction metering device and the finger pickup metering device is good,but not good in the spoon wheel device .The seeding performance of the round small grain seed that in the spoon wheel metering device or in the finger pickup metering device or in the air suction me-tering device is all good.The seeding performance of the flat big grain seed that in the air suction metering device and the finger pickup metering device is good,but not good in the spoon wheel device.The seeding performance of the flat small grain seed in the air suction metering device and the finger pickup metering device is good , but not good in the spoon wheel device.关键词
玉米种子/分级/单粒精量排种器/播种性能Key words
maize seeds/classification/single particle precision seed metering device/the sowing performance分类
农业科技引用本文复制引用
孙士明,那晓雁,靳晓燕,张兆国,张海滨,李国林..不同形态玉米种子分级单粒播种性能试验研究[J].农机化研究,2015,(7):171-175,5.基金项目
国家现代玉米产业技术体系建设项目（Nycytx－02）；农业部旱地农业装备重点实验室项目 （）
