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针对冷凉风沙区杂草防除困难,小籽粒、小播量时免耕播种机播种质量欠佳的问题,研制了小杂粮浅松播种机。该机采用平铲式开沟装置和带橡胶凸起的鼠笼式镇压辊,种肥水平分施,一次作业即可完成浅松除草、施肥播种等任务。在山西阳高县进行的田间试验结果表明:播种均匀性变异系数为1.1,种肥深度合格率92.5%,种肥间距合格率85.7%,平均除草率92.3%。镇压辊实现了对种行和行间的不同镇压,镇压后行间土块直径为1～5cm的占79.4%,有利于减少农田扬尘;种行土块直径为0～1cm的占84.3%,满足作物生长需求。该机适用于冷凉风沙区和农牧交错带的谷黍播种。
Aiming at the problems of weed control in cold and windy sandy areas, the problems of poor sowing quality of no-till planter in small grain and small sowing, a planted shallow cereal planter was developed. The machine uses a flat shovel-type trenching device and a rubber-raised squirrel-cage roller, the level of fertilizer fertilizer facilities, one operation to complete the weeding, fertilization, sowing and other tasks. The field experiment in Yanggao County, Shanxi Province showed that the variation coefficient of sowing uniformity was 1.1, the pass rate of seed fertilizer was 92.5%, the pass rate of seed fertilizer was 85.7% and the average weeding rate was 92.3%. The suppression roller achieved different repression of planting and intercropping. After repression, the mass of clods with the diameter of 1 ~ 5cm between the lines after repression occupied 79.4%, which was conducive to reducing the dust of farmland. The diameter of soil clods was 0 ~ 1cm, accounting for 84.3% Meet crop growth needs. This machine is suitable for cold and windy sand area and the farming and pasturing interlaced belt planting of millet.