Simple and quick detection method for residual quinclorac in soil

Abstract

The invention discloses a simple and quick detection method for residual quinclorac in soil. The method comprises the steps of: acquiring to-be-detected soil before crop rotation; and carrying out pot culturing on indicative plants, namely nightshade, alatum moench or photeinocarpum nakamura, which is sensitive to quinclorac by in the soil, and detecting and judging the safety of residual quinclorac soils on potatoes cultured in the following season. Compared with the conventional instrumental analysis and detection method, the simple and quick detection method for the residual quinclorac in the soil has the characteristics of simplicity, convenience, low cost and strong operability, is conveniently learned, handled and used by users and is suitable for carrying out determining and evaluation on the safety of the soil before the crop rotation of large-area rice and vegetables, professional staff and expensive instruments and equipment are not required, the popularization and the application are liable, and the effective basis is provided for field management of safety production.

Description

technical field [0001] The invention relates to a method for detecting pesticide residues in soil, in particular to a simple and rapid method for detecting residual soil using the herbicide quinclorac (quinclorac), which is used for detecting and evaluating previous rice crops before rice-vegetable rotation. The safety of cropping vegetables (mainly potatoes) in the soil where the herbicide quinclorac has been used in the fields. Background technique [0002] Chemical weeding is an efficient and economical weeding technology. With the continuous development of agricultural science and technology in my country, chemical herbicides are more and more widely used in agricultural production, and farmers are increasingly dependent on chemical herbicides. With the continuous expansion of chemical herbicide application amount and application area, the problem of herbicide phytotoxicity is also increasing year by year, and phytotoxicity has become an important factor affecting agricu...

AI Technical Summary

Problems solved by technology

[0004] At present, the detection method of quinclorac soil residue mainly adopts high-performance liquid chromatography with ultraviolet spectrophotometric detector and mass spectrometer to measure both at home and abroad, and there are also enzyme-linked immunosorbent assays currently under study. These The analysis and determination methods all require expensive instruments and reagents, as well as complex soil sample pretreatment, which cannot be operated by ordinary personnel. Its advantage is high accuracy, and it is mainly used in the research of the degradation of herbicide residues; and for For farmers, the above-mentioned method is not only expensive to use, but also needs to find a unit with corresponding testing qualifications, so farmers seldom adopt it on their own initiative; and once the residual pesticide damage occurs, the soil samples are taken for the above-mentioned detection and diagnosis, and the loss has already been lost. Irreversible, and later passive detection is meaningless