Detection method for residual imazapic in soil

Abstract

The invention discloses a detection method for residual imazapic in soil. The detection method comprises the following steps: acquiring soil of a to-be-detected peanut field before crop rotation and potting an indicative plant sensitive to imazapic in the soil of the to-be-detected peanut field; potting another indicative plant sensitive to imazapic in control soil, i.e., a seedling growing matrix frequently used in gardening; and observing and comparing the growth conditions of the seedling of the sensitive plant potted in the soil of the to-be-detected peanut field and the seedling of the sensitive plant potted in the control soil and determining whether residual imazapic in the soil of the peanut field is safe to later rape and wheat to be planted in the field. Compared with conventional instrumental analysis and determination methods, the detection method provided by the invention has the characteristics of easiness, low cost and good operability; and the method can be easily learned and used, does not need professionals and expensive equipment and reagents, is easy to promote and apply and provides effective bases for field safety production and management.

Description

technical field [0001] The invention relates to a detection method, in particular to a detection method of soil residual methazepam. Background technique [0002] Chemical herbicides have been widely used in agricultural production, but herbicides have the characteristics of specificity, and improper use of herbicides can easily cause herbicide damage to crops, especially the soil residual phytotoxicity of long-term herbicides is particularly prominent. The pesticide in the soil enters the plant through the root system of the plant. The amount of pesticide residues in different plants depends on their ability to absorb the pesticide. After the pesticide is absorbed, the order of distribution in the plant is: root>stem>leaf> In this way, it is difficult to detect phytotoxicity in the early stage, resulting in reduced yield, even extinction or quality decline of subsequent crops. When severe phytotoxicity symptoms are displayed, it is irremediable and serious losses a...

AI Technical Summary

Problems solved by technology

However, this type of analysis method requires expensive instruments and reagents, and requires professionals to operate. For farmers, they do not have the ability and qualifications to operate such instruments, and the cost is high. Therefore, farmers rarely take the initiative to use them. After the disaster occurs, the above-mentioned detection and diagnosis will be carried out on the soil samples, and the losses caused are already irreparable.