摘要
针对用于一年一熟区免耕播种机的尖角型开沟器易磨损,且磨损后导致土壤扰动大、动力消耗增加、影响播种质量等问题,研究了能够拆卸前刀的楔刀型免耕开沟器以及传动机构,设计了刃口为圆弧形的前刀,并在此基础上设计了2BMX-5型小麦-玉米免耕播种机。样机分别在内蒙古、宁夏等小麦、水稻茬地进行了性能试验。试验结果表明,该机在播种过程中未发生堵塞,楔刀型免耕开沟器提高了通过性,开沟破茬效果良好,播种后土壤扰动小,种肥深度能够满足播种要求,在稻茬地的破茬率超过85%。
A new no-till seeder, named 2BMX-5 no-till wheat-maize seeder, has been developed by China Agricultural University to solve the new problem of no-till seeder which the openers was braded that led to increase soil disturbance and fuel consumption in the area of one crop per year of North China. The wedge-shaped with front knife no-till opener consisted of front blade and pedestal and new driving device have been designed, and the split front blade was also designed. Field performance test was made in the field covered with wheat and rice residue in Inner-Mongolia and Ningxia. The results showed that the machine worked well without blockage and the depth of seeding and fertilizing could satisfy the agronomic requirement. Anti-blockage was improved and soil disturbance was decreased after adopted the wedge-shaped with front knife no-till opener. The seeding quality has been improved, and the results showed the cut stubble ratio was over 85 percent in the field covered with rice stubble.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2008年第12期64-68,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)
农业部"948"项目(项目编号:2006-G58)
