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Based on the seed metering device type selection, comparison test its analysis on the basis of obtained the charge outside wheel seeder species partial Xinwo eye is an ideal no-tillage rape Direct Seeding. Feasibility demonstration of the seed metering device seeding performance applied to the tillage of rape made the following work: First, rapeseed physical and mechanical properties test. Second, comparative tests of seed metering device type selection shaped hole. Through comparative tests of seed metering device structure and type hole, and finally determine the a partial solar plexus eye wheeled seed metering device, type the type of hole 6 hole pattern. Design seeder seeding performance test bench and row Seed meter performance test bed. By selecting the a reasonable transmission scheme, transmission and power source, design their own seed metering device performance test bench. The test stand seeding rate, seeding uniformity, hole rate and breakage rate and many other seeding performance test. The relationship between the speed and the amount of broadcast, breakage rate and seeding uniformity, and type the number of rows of holes and sowing amount obtained by experiment. Test the Metering Device line displacement consistency coefficient of variation of 2.28%, the total displacement stability coefficient of variation was 1.09%. The order of the primary and secondary factors affect the rate of hole plus species accounted for the proportion of the seed chamber lambda, the average diameter d of rape seed, seed round of speed n, the optimum combination of A 1 B 1 C 3 , seeding speed 28r/min average seed diameter of 1.0 mm, plus species accounted for the proportion of the seed chamber is 2/3; affect the passing rate of the main the order of the sub-factors seed round of speed n and species accounted for the proportion of the seed chamber lambda, average diameter d of rape seed, optimum combination A of B 3 C 2 , seeding speed is 28r/min, the average diameter of the seed for 1.4 mm, 1/2 plus species accounted for the proportion of the seed chamber. Seeder seeding performance field trials. A field experiment has been the seeder field seeding effect. Spacing consistency coefficient of variation was 3.11%, sowing rate of 50.33mm, the emergence uniformity of 20.97%, each line displacement consistency coefficient of variation of 3.24%, 1.54% of the total displacement consistency coefficient of variation. Compared to bench test, field test results is too large. By climatic conditions, the presence of broken rate, unit operation volatility and instability caused by several factors.
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