Sugarcane field herbicide contg. 2-methyl 4-chloro isooctyl ester

Abstract

A herbicide for sugar cane field is proportionally prepared from MCPA-isooctyl, ametryne, assistant and solvent through preparing emulsified oil.

Description

technical field [0001] The invention relates to a herbicide, in particular to a preparation for controlling field weeds which is composed of 2 methyl 4 chloroisooctyl ester (MCPA-isoocty1) and amethine (ametryne). Background technique [0002] At present, the herbicides commonly used to control weeds in sugarcane fields include triazepines such as atrazine, promethazine, ureas such as diuron, liguron, amides such as alachlor, acetochlor, hormones Such as 2,4-D butyl ester, 2 methyl 4 chloride sodium salt. Single-component herbicides have good control effect on some weeds in sugarcane fields, but the weed control spectrum is narrow, and the overall control effect is not ideal. Therefore, compound herbicides came into being. At present, the representative compound herbicide is the cane field herbicide developed by Guangxi Chemical Industry Research Institute. It is characterized by the use of herbicides with a long closed period. It is very effective in controlling weeds whe...

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Problems solved by technology

The effect of this formula herbicide is not ideal when it is used to control weeds with more than 4 leaves. Based on this formula, many improved sugarcane herbicide mixtures have appeared, for example, arazine is used to replace diuron or atrazine , patent 02154112.4 introduces a compound herbicide for preventing and controlling weeds in sugarcane fields, and its herbicide ingredients are ametryn and sodium 2-methyl-4-chloride

The mixed herbicides of these improved formulas have a better effect on the control of weeds with more than 4 leaves, but there are two disadvantages: one, the 2-methyl-4-chloride sodium content is too low, and the 2-methyl-4-chloride sodium is easily soluble in water and dissociated Anions are released, combined with calcium and magnesium ions in hard water, resulting in precipitation and failure

Farmers generally use very high hardness field water or pond water to prepare pesticide spray liquid, and sodium 2-4-chloride produces calcium and magnesium precipitation of 2-4-chloride, resulting in losses to varying degrees; Phytotoxicity, although it can be recovered by strengthening fertilization, especially for some new sugarcane varieties such as the high-yield sugarcane variety Yuetang 93 / 159, which is widely promoted and planted, the phytotoxicity is even greater

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