The root system of plants is an important part of plants, a dynamic cross section of soil and plants, and bears an important responsibility for extracting water and nutrients from the soil. Therefore, scientific research on plant roots is carried out to better guide agricultural production and promote agricultural development. , all have important significance. Compared to the study of the aerial parts of plants, roots are hidden in the soil, so root sampling is required before root research is carried out, and the application of root drills provides a time-saving and labor-saving sampling for plant root sampling. The method is of great significance for promoting the development of root research.
Root system research is carried out mainly by root sampling, observing the morphology of plant roots in the soil, or separating the roots from the soil. There are many methods for root sampling, such as excavation method, whole specimen method, section method, glass wall method, mesh bag method, root drilling method, etc. Among them, the root drilling method, that is, using root drill sampling, is labor saving and precise. The extraction of a certain volume of soil-root samples, a more appropriate method, large-scale promotion and application of root drill sampling, will help accelerate the research of roots and provide important research materials for agricultural development.
The root drill set can collect the undisturbed soil, and the sample can be kept almost the same as the original. The bottom of the root drill has a replaceable drill crown, the top is short, and can not be disassembled. The set is equipped with a nylon hammer. If the soil is soft, the root drill can be inserted directly into the soil; if the soil is tight, a nylon hammer is required. Sampling with root drills, in general, discontinuous sampling in the horizontal direction, that is, according to the environment of plant growth, select a representative location for sampling, and in the vertical direction, stratified complete sampling, that is, the root system The levels are sampled and there is no gap between the layers. In recent years, with the emphasis and deepening of root research in the field of agricultural research, the application of root drills has become more and more extensive, and has played an important role in the actual work.
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