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1 前 言 同一个品种播在同一块地里,采用同时、同法下种,就是在同一行中总是会发现出苗时间参差不齐,收获时同行相邻植株间的单株生物产量或经济产量差异都极为显著。为了探索种薯所处的芽位不同其出苗期、产量差异比例等而进行本试验。 试验证明这是因为在割种薯薯块时将前尖芽、腰部（中部）芽、后腚芽进行混合催芽或直接播种
1 Introduction The same species sown in the same piece of land, using the same time, under the same law, that is, in the same line will always find uneven emergence time, the same plant at the harvest when the adjacent plant biological yield per plant or economic output The difference is extremely significant. This experiment was conducted to explore the different seedling stage of seed potatoes in their seedling emergence and yield differences. Tests proved that this is because when cutting potato crisp blocks before the spike, waist (central) bud, after the bud buds were mixed or germination or direct sowing