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NY 686-2003: Guideline for safety application of sulfonylurea herbicides
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Guideline for safety application of sulfonylurea herbicides
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NY 686-2003
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Basic data | Standard ID | NY 686-2003 (NY686-2003) | | Description (Translated English) | Guideline for safety application of sulfonylurea herbicides | | Sector / Industry | Agriculture Industry Standard | | Classification of Chinese Standard | B17 | | Classification of International Standard | 65.100.20 | | Word Count Estimation | 14,177 | | Date of Issue | 2003-12-01 | | Date of Implementation | 2004-03-01 | | Summary | This standard specifies the 21 kinds of sulfonamide herbicides control weeds in urine using doses, the use of time, methods, sensitivity of crop varieties, crop rotation crop after crop safety across the stage. This standard applies to instruct the sulfonamide herbicides in the urine of rice, wheat, corn, soybeans, canola and other crop fields to control weeds safe, effective, fair use, play production efficiency purposes. | NY 686-2003: Guideline for safety application of sulfonylurea herbicides---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Guideline for safety application of sulfonylurea herbicides
ICS 65.100.20
B17
People's Republic of China Agricultural Industry Standard
Reasonable use criteria for sulfonylurea herbicides
Released on December 12,.2003
2004-03-01 implementation
Published by the Ministry of Agriculture
Foreword
In order to guide the scientific, rational and safe use of sulfonylurea herbicides, reduce the negative impacts caused by improper use on agricultural production.
It is better to play an active role in agricultural production and to develop this standard.
This standard covers the dosage of 21 sulfonylurea herbicides in rice, corn, soybean, rapeseed and turf, woodland, non-cultivated land,
The drug period, the method of application, the object of prevention and treatment, the safe interval between the application of the drug and the post-crop crop, and the application techniques such as precautions for use. Every standard
After two years of field efficacy trials in two or more places, combined with the vast amount of data obtained from the experience and lessons of large-scale promotion; after two years of two-point residual test
The combination of instrumental analysis and bioassay was used to determine the residual amount of such long-term residual herbicide in the soil.
Growth effects and safety intervals between pre- and post-crop crops, rational arrangement of crops, and reduction of damage to crops;
Effectiveness of medicine, ways to reduce the amount of medicine, improve crop safety, avoid and delay weed resistance, protect the ecological environment, and ensure the production of harvested agricultural products
Quantity and quality are based on the large amount of data obtained. The technical requirements of this Code are more instructive and operative.
This standard was proposed by the Ministry of Agriculture of the People's Republic
This standard was drafted. Pesticides Laboratory of the Ministry of Agriculture.
The main drafters of this standard. Liu Xue, Wei Fuxiang, Jia Fuqin, Zhang Jia.
This standard is interpreted by the Ministry of Agriculture's Pesticide Testing Institute.
Reasonable use criteria for sulfonylurea herbicides
1 Scope
This standard specifies the dosage, period of use, method, crop variety sensitivity of 21 sulfonylurea herbicides for controlling field weeds.
After the crop rotation, the crop safety interval.
This standard is applicable to the guidance of the above sulfonylurea herbicides in the control of weeds in rice, wheat, corn, soybean, rapeseed and other crop fields.
Effective and reasonable use, the purpose of increasing production and increasing efficiency.
2 Terms and definitions
The following terms and definitions apply to this standard.
2.1
A class of herbicides having a sulfonylurea structure in the molecule. The chemical structural formula includes an aromatic ring, a sulfonylurea bridge, and a heterocyclic three-part.
Where X=N, CH
Y=Cl, COOH, CO2CH3, SO2CH2CH3, CH2CF3, CF3, OCH2Cl, OCH3, OCH2CF3, NO2
OCH2CH3, O(CH2)2OCH3, O(CH2)2Cl, COOC2H5, CON(CH3)2
R=CH3
R1=CH3, Cl, OCH3, CHOF2, NHCH3, N(CH3)2, CF3, SCH3
R2=OCH3, CH3, Cl, CHOF2, OC2H5, OCH2CF3
The herbicidal activity varies with the nature and position of each substituent. The above chemical structure changes the benzene ring through mode structure modification and modification.
It is also a compound with pyridine, thiophene, furan and naphthalene ring. Acetylsulfuron has no aromatic ring structure, no substituent on the sulfonylurea bridge, and contains trinitrogen ring.
Or pyrimidine ring, the fourth and sixth positions on the ring contain substituents CH3, OCH3, Cl; monosulfuron is a single substituent, the above are collectively referred to as sulfonylureas
herbicide. These compounds have high activity against weeds and can be used to control weeds in farmland, woodland and non-cultivated land.
2.2
After the herbicide is used, it has a long residual time in the soil, and even if there is a trace residue, it is easy to cause phytotoxicity of the susceptible crop.
Known as long residual herbicides. Sulfonylurea long residual herbicides such as chlorsulfuron, metsulfuron, ethametsulfuron, chlorsulfuron, monosulfuron
Long and so on.
3 Technical guidelines for the use of sulfonylurea herbicides
3.1 Use of technical guidelines (see Table 1)
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