在农业生产和科学试验中,调查估算作物的株数或穗数是一项经常性的工作。通常要经过定点取样、查数、计算等几个步骤。由样点所查得的数据换算成每亩的数据比较麻烦,不易用口算迅速得到。袖珍计算器的使用,方便了运算,但在没有计算器的情况下,仍需用笔算。这里介绍一种田间株数的简易调查方法,方便、迅速,只需测尺,不需纸、笔及任何计算工具。一、原理通常我们调查作物株数,多以 In agricultural production and scientific experiments, surveying and estimating the number of plants or the number of ears is a recurrent work. Usually go through fixed-point sampling, check, calculation, and several other steps. Measured by the sample data converted into per acre data is too much trouble, not easy to use port count quickly get. Pocket calculator to facilitate the operation, but in the absence of a calculator, still need pen calculations. Here is a brief survey of the number of plants in the field, convenient and rapid, just measure the foot, without paper, pen and any calculation tools. First, the principle we usually survey the number of crops, and more