农机化研究2018，Vol.40Issue(1)：145-149,165,6.
穴施肥排肥器设计与试验
Design and Experiment of Hill Placement Fertilizer Applicator
摘要
Abstract
The method of hill placement fertilizer application can increase the fertilizer utilization rate and reduce the production cost.Therefore, a spoon wheel fertilizer applicator is designed.EDEM discrete element simulation technique is used to simulate the hole forming performance of the fertilizer distributor, and to test the uniformity of fertilizer per hole.The results showed that the coefficient of variation of fertilizer application rate was 2.66,3.10 and 4.18, respectively, when the angular velocity of fertilizer component was 100°/s, 150°/s and 200°/s.The verification experiment is carried out on the seed metering device,and the corresponding coefficients of variation are 4.26, 4.87 and 6.16, respectively.The change trend of the results in the verification experiment is the same as that of the simulation test.The performance of the hill placement fertilizer applicator can meet the production requirements, and it lays the foundation for the design of precision seeder.关键词
施肥/排肥器/穴施/离散元仿真Key words
fertilizer application/fertilizer applicator/hill placement/DEM simulation分类
农业科技引用本文复制引用
袁文胜,李坤,金诚谦,胡敏娟,张文毅..穴施肥排肥器设计与试验[J].农机化研究,2018,40(1):145-149,165,6.基金项目
公益性行业(农业)科研专项(201503130) （农业）
江苏省自然科学基金项目(BK2012517) （BK2012517）
江苏省农业科技自主创新资金项目(CX[15]1004) （CX[15]1004）
