Soil sample collection method

Abstract

The invention discloses a soil sample collection method. The method specifically comprises the following steps: defining areas with approximately consistent fertilization types, fertilization amounts,fertilization habits, soil types, crop varieties and growth vigor in a sampling area as a sampling area, and defining each difference area of inconsistent areas as a sampling area; and determining aplurality of sampling points in each sampling area, respectively sampling, wherein the soil samples collected by each sampling point are independently formed and are not mixed with one another. The collection method can reflect the soil fertility difference of different areas in the sampling area, and provides a scientific basis for designing an accurate fertilization scheme.

Description

technical field [0001] The invention relates to the technical field of agriculture, in particular to a method for collecting soil samples. Background technique [0002] The distribution of soil fertility is a key element in the agricultural production environment. At present, in order to obtain the soil fertility, the usual measure is to sample the soil and analyze its fertility status, that is, through intensive sampling of the soil in the farmland, the determination of nitrogen, phosphorus, The content of nutrients such as potassium and other soil organic matter. [0003] Soil sampling generally adopts mixed soil samples, that is, the same amount of soil is collected at multiple points on a sampling plot, and mixed evenly, that is, a mixed sample. Usually, the mixed soil samples of the plow layer are directly collected, that is, the soil samples from multiple sampling points are mixed evenly in equal amounts to form a mixed sample for measurement, and then the fertilizati...

AI Technical Summary

Problems solved by technology

However, when the sampling plot is large, the soil fertility in different regions on the same sampling plot is different, and the mixed soil sample is a mixture of soil samples from different sampling points, which cannot reflect the specificity of soil samples in different regions. The test results also do not represent the true status of the soil in each area. There may be a lack of element X in the soil of area A, an abundance of element X in the soil of area B, and the presence of element X in the mixed sample within the normal range.

Therefore, this method of collecting mixed soil samples cannot accurately reflect the differences in soil fertility in different regions on the sampling plot when the sampling plot is large, resulting in obvious differences in soil fertility in different regions on the sampling plot. The situation where the same fertilization program leads to poor plant growth