土壤的质地也叫土壤的机械组成,指的是各种大小土粒的相对含量.粗土越多,土壤砂性越大;细土越多,则土壤粘性越大,一般眼看手摸,可以粗略区分土壤质地,但在不同地区不同条件下,往往会出现偏差.为了统一土壤质地的分类标准,应该进行土壤质地测定,以合理安排作物种类和管理措施等.在室内测定土壤质地,需要一套仪器设备,而采用手摸目测法,则简便易行.具体做法是:把土壤压碎后,加入适当的水,象 The texture of the soil is also called the mechanical composition of the soil, referring to the relative content of various sizes of soil particles. The more coarse soil, the greater the soil sand; the more fine soil, the greater the soil viscosity, Rough distinction between soil texture, but in different regions under different conditions, there will often be deviation.In order to unify the soil texture classification criteria, soil texture determination should be carried out to reasonably arrange the crop species and management measures, etc. Determination of soil texture indoors, you need a Set of equipment, and the use of hand touching the visual method, then simple and easy. The specific approach is: the crushed soil, add appropriate water, like