Benthiocarb herbicide and application thereof

Abstract

The invention discloses a benthiocarb contained herbicide which is composed of, by weight, 2-98% of original benthiocarb and 2-98% of an assistant. The invention further discloses application of the above benthiocarb herbicide in prevention and removal of weeds of direct sowing rice fields. The benthiocarb herbicide applied in after-planting sprouting stage (the same day after planting to four days) of rice can effectively prevent grassy weeds of the after-planting sprouting stage of the rice, cyperus weeds and other broadleaf weeds of the direct sowing rice fields, and the benthiocarb herbicide has the advantages of security, high efficiency, less dosage and convenience in operation, and broad application prospect is achieved.

Description

technical field [0001] The present invention belongs to the technical field of agriculture, and in particular relates to a herbicide and a method for using it, which is used for controlling gramineous weeds, Cyperaceae weeds and other broad-leaved weeds in the germination stage after rice direct-seeding field sowing, It has the characteristics of safety, high efficiency, less consumption and convenient operation. Background technique [0002] In recent years, with the continuous expansion of the direct seeding area of ​​rice and the continuous change of cultivation techniques, the grass phase in the field has also changed. The rice field alternates between dry and wet in the early stage, and the weeds in the rice field have developed into a huge plant community. At present, there are many types of weeds in direct seeding paddy fields, the occurrence of which is large, and the weeding time is long, which is easy to bully seedlings at an early stage. The weed community in dir...

AI Technical Summary

Problems solved by technology

However, most herbicides will affect the growth of rice and cause phytotoxicity when used within the day to 4 days after rice sowing.

Although some herbicides can be used after adding safeners, the risk of phytotoxicity still exists, and the control effect is not satisfactory

Chu Yinfang et al. in the December 2011 issue of Modern Agriculture Magazine, 90% Grass Grass EC Application Technology Research on the Control of Weeds in Direct Seed Rice Fields, proposed to apply 90% Grass Grass EC 2 to 4 days after sowing of rice Grass Dan 1800~2250mL / hm 2 Adding safener can effectively control the harm of weeds in the early stage of direct seeding field with one application of medicine. Although this method is good, it needs to be used in combination with safener, which increases the cost of use and still has many shortcomings.

Images