山东农业大学学报（自然科学版）2016，Vol.47Issue(5)：720-725,6.DOI:10.3969/j.issn.1000-2324.2016.05.016
倒挂式圆管气吸玉米免耕精播机的试验研究
Experimental Study on Corn No-till Precision Planter with Upside Down Circular Air Suction Tube
摘要
Abstract
Aiming at the defects in the current circular pneumatic seeder, such as numerous and jumbled air passage, great wind pressure loss, and great power loss, it develops inverted air-suction corn precision seeder based on the circular tube air-suction seeding device. Through the seeding test of the seeder, it turns out that the negative pressure of the seeding is 3.8kPa. leak seed index of 3.75%, repeating seeding rate of 8.33%, qualified rate 87.5%between seeds, variation coefficient 25.7, average depth of 42.76 mm and qualified rate of 87%. Compared with 2BYQFH-4 vertical circular pneumatic seeder, it has simple air passage structure, requires small power, simplifies the structure of the seeder, reduces the air pressure loss, and reduces the fan power. The related technological indexes reach the national standards. Moreover, the breakage rate of the seeds becomes lower; the seeding depth is uniform; the fertilizer is stably ejected; the seeding is even. It can realize the precise seeding of the single grain.关键词
气吸式/免耕播种机/性能试验Key words
Air suction/no-till planter/performance validation test分类
农业科技引用本文复制引用
王洪伟,史智兴,张晋国,赵晓顺,周国龙,李剑锋..倒挂式圆管气吸玉米免耕精播机的试验研究[J].山东农业大学学报（自然科学版）,2016,47(5):720-725,6.基金项目
“十二五”国家粮食丰产科技工程(2011BAD16B08) （2011BAD16B08）
河北省人力资源和社会保障厅河北省高层次人才资助项目:基于圆管式气吸排种器的玉米免耕施肥播种机开发研究(201304203) （201304203）
