Field trial soil sampling method

A technology of soil sampling and field testing, applied in the direction of sampling devices, etc., can solve the problems of not being able to reveal the physiological and biochemical processes in depth, extensive and so on

Inactive Publication Date: 2013-08-14
JIANGXI TOBACCO LEAF SCI RES INST
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  • Claims
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Problems solved by technology

Most of the traditional soil research methods use soil drills to collect the soil around the root system or mix the soil around the root system as a sample for analysis. However, this method is relatively extensive and cannot deeply reveal the physiological conditions that occur near the root surface when plants grow. biochemical process

Method used

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  • Field trial soil sampling method

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0016] The embodiment is that when the tobacco grows to the cluster stage, the soil where the root system of the tobacco plants with different experimental treatments grows is sampled in the morning on a sunny day, so as to measure the difference in nutrient content in the soil at different locations. In this experiment, the radius of the root extension range is about 20-25cm, and the depth is about 25-30cm when the tobacco plants are treated at the group stage; the soil moisture content of the tobacco ridge is about 60% when sampling. Clean the shovel so as not to significantly affect the test results.

[0017] The soil sampling operation steps of the present embodiment are:

[0018] (1) Clean up debris: Select representative tobacco plants, remove the mulch and weeds 30cm away from the base of the tobacco plants, and c...

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Abstract

The invention discloses a field trial soil sampling method and belongs to the field of researches of a crop cultivation technology. The method can carry out respective sampling on soil which has different distances from root surfaces of plants, and comprises the following steps of cleaning impurities, digging roots, shaking the roots, brushing the roots, sampling and the like. After the sampling, the field soil is divided into three types: rhizosphere soil A, non-rhizosphere soil B and non-rhizosphere soil C. Compared with a traditional method for sampling the soil by adopting a soil auger, the method is more delicate, is convenient for scientific research personnel to carry out difference analysis on physiological and biochemical indexes and biological properties of the soil at different parts, and provides evidence for improving the crop cultivation technology.

Description

technical field [0001] The invention relates to the field of crop cultivation technology research, in particular to providing a field test soil sampling method. Background technique [0002] Soil can provide essential mineral nutrients and micro-ecological environment for crop growth. Studies have shown that a large number of microorganisms gather within a few millimeters centered on the root system of the plant, forming a special biological community. Many chemical conditions and biochemical processes in this area are different from soil soil. This area is also called For the rhizosphere. Studying the physiological, biochemical and biological characteristics of crop rhizosphere soil is of great significance for optimizing crop cultivation technology, improving nutrient utilization efficiency and crop yield and quality. Most of the traditional soil research methods use soil drills to collect the soil around the root system or mix the soil around the root system as a sample...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/04
Inventor 张海伟何宽信李立新
Owner JIANGXI TOBACCO LEAF SCI RES INST
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