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我们在生产实践中摸索到一种确定播种量的好方法,它简单易行,能达到亩保全苗的要求,而且不易出差错。 播种量是指种籽百分之百种籽发芽的数量,但是种籽的发芽率一般只在百分之九十左右,况且种籽里有夹杂物。那么实际播种量又是怎样来确定呢? 首先测定种籽的清洁率、发芽率印利用率。 清洁率:取一定数量的种籽样品,然后除去里面的砂子、稗子、破伤粒子和秕粒子及其它残枝碎屑等夹杂物。余下干净种籽重量的百分率。计算公式如下:
We found in the production practice to determine a good method of sowing, it is simple and easy to achieve the requirements of mu seedlings, and not easy to go wrong. Sowing rate refers to the seed germination percentage of one hundred percent seed, but the germination rate of the seed is generally only about 90 percent, in addition there are inclusions in the seeds. Then the actual sowing is how to determine it? First determine the seed cleanliness, the rate of utilization of germination rate. Cleaning rate: Take a certain number of seed samples, and then remove the sand, barnyard, broken particles and 秕 particles and other debris debris and other debris inside. The percentage of remaining clean seed weight. Calculated as follows: