小槽轮排种器半精量播种小麦的试验研究

A Study on Semi-accuracy Seeding Wheat by Small Grooved Pulley Seed Sowing Device

利用排种试验台架对小槽轮排种器进行半精量播种的正交试验．以亩播量、条播均匀变异系数、断条率、种子破碎率作为试验指标，对试验数据进行整理分析，得到了该排种器结构参数的优化组合．结果表明；小槽轮排种器可以用于小麦的半精量播种．

The orthogonal test of semi-accaracy seeding is done to the small groved pulley seed sowing device on seeding test-bed.The seed-quantity per mu,the uniformvariation coefficient of drill seeding, the discontinuous rate of drills and the fragmenting rateof seeds,as the testing standard,the testing data are collected and the optimization combination of the design values of the seed sowing device is obtained.The results show that thesmall grooved pulley seed sowing device can meet the requirements of semi-accuracy seeding.