以单位土地面积上植株的鲜重或干重来代表大田作物生长情况的指标,为许多农业生产工作者和农业科研工作者所重视和采用。然而,这些数值的测定,一般都要求割取一定数量的植株样品称重。由于每次测定的植株不同,造成了误差,同时又破坏了试验田的结构,因此迫切需要一种不破坏植株而测得其鲜重和干重的方法。 Indicators of field crop growth in fresh or dry weight of plant per unit area of ​​land are valued and adopted by many agricultural workers and agricultural scientists. However, the determination of these values ​​generally requires that a certain number of plant samples be cut for weighing. Due to the differences in the plants tested each time, causing errors and destroying the structure of the experimental field, there is an urgent need for a method of measuring fresh and dry weight without destroying the plants.