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介绍一种计算小麦亩苗数的方法,既简便又精确,很值得推广。其方法是,在调查点选出有代表性的- 二行,量出6尺,并计算这6尺的苗数,用所得苗数除以平均行距的尺数,然后乘以1000,便得出1亩地的苗数。例如6尺行长的麦苗数为200株,行距0.5尺,则200+0.5×1000=40万株。调查的行长也可以变动,可根
Introducing a method for calculating the number of wheat acres of seedlings, both simple and accurate, it is worth promoting. This is done by selecting a representative two rows at the survey site, measuring 6 feet and calculating the number of seedlings at 6 feet. Dividing the number of seedlings obtained by dividing it by the average row spacing and multiplying it by 1000 gives 1 mu of land to the number of seedlings. For example, the number of wheat seedlings on a 6-foot-long line is 200 and the row spacing is 0.5 feet, then 200 + 0.5 × 1000 = 400,000. The president of the survey can also change, but root