三七栽培技术调查研究

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一、种子、种苗大小对产量的影响:(一)种子大小对产量的影响:不同种子进行播种观察,大粒种、中粒种和小粒种之间,育苗后的死亡率和产量都有明显的差 First, the seed and seedling size of the impact on yield: (A) the impact of seed size on the yield: sowing of different seeds were observed, large seed, medium seed and small seedling, seedling mortality and yield were significantly The difference
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