并列组合式种肥分施防堵装置的设计与试验  

Design and Experiment on Paratactic Separate Application of Fertilizer and Seed Mechanism

作　　者：王庆杰[1] 李洪文[1] 何进[1] 李问盈[1] 张喜瑞[1] 蔡国华[1] 

机构地区：[1]中国农业大学工学院

出　　处：《农业机械学报》2008年第12期73-77,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十一五"国家科技支撑计划重点项目(项目编号:2006BAD28B04)

摘　　要：针对东北垄作区春季玉米免耕播种时施肥量大,正位垂直施肥易烧种,侧位施肥易堵塞的问题,研究设计了一种并列组合式种肥分施防堵装置。在玉米碎秆覆盖地试验结果显示,该装置土壤扰动量为17.8%,播种平均深度为44 mm,施肥平均深度为78 mm,种肥水平间距为32 mm,垂直间距为34 mm,种肥间距合格率达93%,提高了播种质量。与正位垂直施肥和前后侧位深施肥方式相比,该装置防堵能力强,种肥分施效果好。In view of the exist those main problems in the area of northeast ridge during the spring corn planting, such as large quantity of fertilizer, seed burned easily by the vertical fertilizing while lateral fertilization easily plugs openers, an undynamic anti-blocking mechanism and a paratactic separate application of fertilizer and seed mechanism were designed. The experiment in the field that covered with broken stalks of corn showed that the soil disturbance was 17.8 %, planting depth was 44 mm, depth of fertilizer was 78 mm. The trial also showed that the level pitch of seed and fertilizer could be 32 mm, while the vertical spacing was 34 mm, and 93 % could meet the requirements of agronomic. Compared to the orthophoric and lateral fertilizer application methods, the planting quality has been upgraded, while the blocking problem existed in the mentioned fertilization was also improved, and the opener could get through the straw more easily now.

关 键 词：玉米 免耕播种机 种肥分施 设计 试验 

分 类 号：S223.26[农业科学—农业机械化工程]