Water retention type pesticide residue detection method suitable for spongy wet soil
A pesticide residue detection and water-retaining technology, which is applied in soil material testing, preparation of test samples, material inspection products, etc., can solve the problems of affecting test results, water loss, and reducing the amount of pesticides, and achieves the goal of soil moisture. Effect
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[0044] see figure 1 A method for detecting water-retaining pesticide residues suitable for loose wet soils, comprising a double-chamber closed sampler, the double-chamber closed sampler includes an inner chamber and an outer chamber, and the detection method comprises the following steps:
[0045] S1. Select a complete area at the target detection site, and inspectors use a double-cavity closed sampler to take out soil samples from the area to obtain two parts of soil samples: the outer cavity and the inner cavity;
[0046] S2, divide the soil sample in the outer cavity of the double-cavity closed sampler evenly into n parts of sample A, select an appropriate amount of soil from the soil in the inner cavity of the double-cavity closed sampler, and evenly divide it into n parts of sample B, and the sample The weight of A is the same as that of sample B;
[0047] S3. Select m parts of sample A and m parts of sample B (m
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