摘要
为保证2BMFJ-3型麦茬地免耕大豆精密播种机播种大豆的性能,确定一种适合于该播种机的机械式精密排种器,参照GB6973-2005《单粒(精密)播种机试验方法》,以窝眼轮式、倾斜勺式和勺轮式排种器为研究对象,在JPS-12计算机视觉精密排种器性能检测试验台上实施了对比试验研究。结果表明:在作业速度3~6 km.h-1、粒距8 cm条件下,勺轮式排种器的排种性能最优,其合格指数87.8%~98.9%,重播指数0.5%~1.1%,漏播指数低于12%,变异系数小于16%,各项指标均达到国家标准优等品水平。
The comparative tests have been carried out on test-bed of JPS-12 seed-metering by GB6973-2005, Single (Preci- sion) Seeder Experimental Method, of which the seeding-metering of socket-roller, inclined spoon and spoon-roller were select- ed as the object. The objective was to improve the soybean seeding performance of 2BMFJ-3 type no-till precision planter in wheat stubble fields, and determine a kind of reasonable seeding-metering for the planter. The result indicated that the seeding performance of spoon-roller was the best, while operation speed was 3-6 km. h J and space was 8 cm, meanwhile qualified rate was 87.8%-98.9%, multiple rate was 0.5%-1.1% , missed rate was lower than 12% and variable coefficient was less than 16% ,and each index attached the level of superior quality.
出处
《大豆科学》
CAS
CSCD
北大核心
2013年第2期257-261,共5页
Soybean Science
基金
现代农业产业技术体系建设专项资金(CARS-04)
国家公益性行业(农业)科研专项资金(201303011)
关键词
大豆
排种器
排种性能
对比试验
Soybean
Seed-metering
Seeding performance
Comparative test