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土壤监测点,也叫定位观察点。通过对它们的长期定位试验,可以使我们及时了解到土壤肥力的变化,为合理的轮作施肥、灌溉等找出科学依据,同时还可积累下当地的农业生产资料。自第二次土壤普查以来,在我地区先后建立了25个土壤监测点。一、建立土壤监测点的原则: (一)土壤类型。每个土壤类型的主要土种应该设置监测点。 (二)轮作制度。比较稳定地有代表性的轮作制度下的土壤,应该设置监测点。 (三)田块面积。一般5亩左右的地块,其土壤结构相同,理化性质基本相同的设立一个监测点。不符合以上条件的田块,不适宜建立土壤监测点。
Soil monitoring points, also known as positioning observation point. Through their long-term positioning test, we can keep abreast of changes in soil fertility, find scientific basis for rational crop rotation and irrigation, and at the same time, we can also accumulate local agricultural means of production. Since the second soil survey, 25 soil monitoring sites have been established in our region. First, the establishment of soil monitoring points principles: (a) soil type. The main soil types for each soil type should be set monitoring points. (B) rotation system. In the more stable and representative soil under the rotation system, monitoring points should be set up. (C) field area. Generally about 5 acres of land, the same soil structure, the same physical and chemical properties of the establishment of a monitoring point. Field does not meet the above conditions, not suitable for the establishment of soil monitoring points.