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根据試驗数据証明,播种比重高的种子可以增产10％左右。在利用方形点播机播种玉米时,如果玉米种子不經过清选和分級,則往往有7％的穴漏播,每穴2—3粒者約占总穴数的20％,每穴4—12粒者約占73％。在这种情况下,玉米的生长极不均匀,不但影响玉米的产量,而且需要进行間苗和补苗等工作。为了克服这些缺点,必須对玉米种子进行清选和分級,将病弱和不规則的种子除去。本研究工作的主要目的,便是为了解决玉米种子的清选和分級問題选择适当的机械,以达到精密点播和提高玉米的产量。
According to the experimental data show that the high proportion of sown seeds can increase about 10%. When sowing corn with a square-type jukebox, if the corn seeds are not cleared and graded, 7% of the holes are usually missed and sowed, with 2-3 grains per hole accounting for about 20% of the total number of holes. Each hole 4- About 12 tablets accounted for 73%. Under such circumstances, the growth of maize is extremely uneven, which not only affects the yield of maize, but also requires the work of saplings and seedlings. To overcome these shortcomings, corn seeds must be cleared and graded to remove sick and irregular seeds. The main purpose of this research work is to select appropriate machinery for resolving the problem of sorting and classifying corn seeds so as to achieve precise on-demand and increase the yield of corn.