阅读说明：本技术 一种新型马铃薯田除草剂 (Novel potato field herbicide ) 是由 刘德芳 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种新型马铃薯田除草剂,由乙草胺可湿性粉剂、嗪草酮可湿性粉剂和扑草净可湿性粉剂组成,具体用量比例为：140～200克乙草胺可湿性粉剂中加入12～30克嗪草酮可湿性粉剂和25～50克扑草净可湿性粉剂。该除草剂具有较长的持效期,施药后,杂草什么时候发芽,就什么时间被杀死,即从施药后到秋天收获时地里基本上没有杂草。适用于马铃薯、玉米、黄芪等作物的田间除草,防除效果好,为农民急需,能解放千百万农村劳动力,具有广泛的应用价值。(The invention discloses a novel potato field herbicide, which consists of acetochlor wettable powder, metribuzin wettable powder and prometryn wettable powder, and the specific dosage ratio is as follows: 12-30 grams of metribuzin wettable powder and 25-50 grams of prometryn wettable powder are added into 140-200 grams of acetochlor wettable powder. The herbicide has long lasting period, and after application, weeds germinate and are killed at any time, i.e., the herbicide is basically free of weeds from the time of application to the time of harvest in autumn. The weeding composition is suitable for field weeding of crops such as potatoes, corns, astragalus membranaceus and the like, has a good prevention and removal effect, is urgently needed by farmers, can liberate millions of rural labor force, and has a wide application value.)

1. A novel potato field herbicide is characterized by comprising acetochlor wettable powder, metribuzin wettable powder and prometryn wettable powder, wherein the specific dosage ratio is as follows: 12-30 grams of metribuzin wettable powder and 25-50 grams of prometryn wettable powder are added into 140-200 grams of acetochlor wettable powder.

2. A novel herbicide for potato fields as claimed in claim 1, wherein the amount of acetochlor in said wettable acetochlor powder is 20% by mass of the total amount of the wettable acetochlor powder.

3. The novel herbicide for potato fields as claimed in claim 1, wherein the mass of prometryn in said wettable powder of prometryn is 50% of the total mass of the wettable powder of prometryn.

4. The novel herbicide for potato fields as claimed in claim 1, wherein the mass of metribuzin in the metribuzin wettable powder accounts for 70% of the total mass of the metribuzin wettable powder.

Technical Field

The invention belongs to the technical field of agricultural medicines, relates to a herbicide, and particularly relates to a novel potato field herbicide.

Background

Herbicides (herbicides) refer to agents which cause complete or selective death of weeds, also known as herbicides, and are used to kill or inhibit plant growth. The sodium chlorate, borax, arsenate and trichloroacetic acid in the herbicide composition have withering effect on any kind of plants, and the effect is influenced by three factors of the herbicide, the plants and the environmental conditions. They are divided by action into biocidal and selective herbicides, the selective herbicides being effective in most cases, in particular derivatives of nitrophenol, chlorophenol, carbamic acid. The development of the herbicide in the world is gradually steady, the varieties with high efficiency, low toxicity, broad spectrum and low dosage are mainly developed, and the disposable treatment agent with little environmental pollution gradually becomes the mainstream.

The herbicide used at present has short duration of pesticide effect, and the herbicide needs to be used for many times in the growth period of the potatoes so as to ensure that no weeds exist in the field and waste time and labor.

Disclosure of Invention

The invention aims to provide a novel potato field herbicide with long lasting period after application.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a novel potato field herbicide comprises acetochlor wettable powder, metribuzin wettable powder and prometryn wettable powder, and the specific dosage ratio is as follows: adding 12-30 g of metribuzin wettable powder and 25-50 g of prometryn wettable powder into 140-200 g of acetochlor wettable powder;

the mass of the acetochlor in the acetochlor wettable powder accounts for 20 percent of the total mass of the acetochlor wettable powder;

the mass of prometryn in the prometryn wettable powder accounts for 50% of the total mass of the prometryn wettable powder;

the mass of metribuzin in the metribuzin wettable powder accounts for 70 percent of the total mass of the metribuzin wettable powder

The application method of the herbicide comprises the following steps: and taking the raw materials according to the dosage proportion, putting the raw materials into a mixer, and stirring the raw materials for 30-40 minutes at a rotating speed of 70 revolutions per minute to obtain the potato field herbicide.

After potatoes are sown, according to the dosage of 177-280 g of potato field herbicide required by each mu of field, putting the potato field herbicide with the dosage of mu into a sprayer, adding 25-35 kg of water, and uniformly stirring to obtain the herbicide solution.

The herbicide solution is sprayed on the soil surface in a potato field, land shallow mixing is carried out immediately after the application of the herbicide solution, and the herbicide on the soil surface is shallow turned into the soil.

The herbicide is a ternary compound agent, scientific demonstration of the herbicide is carried out for one year by the agricultural crop plant protection company in northwest Ann of 2018, plot experiment and field production demonstration are carried out, and as a result, the herbicide is safe for potatoes, has excellent and efficient prevention and removal effects and obtains high evaluation of pesticide production enterprises. The herbicide has long lasting period, and after application, the weed germinates and is killed at any time, i.e., the weed is basically not existed from the application to the harvest time in autumn. A fixed farmer demonstrates 4-5 mu every year, and when the potatoes are harvested in autumn, no weeds exist in the potato field. Another farmer planted 2 acres of Astragalus membranaceus, and in one acre of which the herbicide solution of the present invention was applied by a pesticide producer, no weeds were found in the acre, while the acre of acre to which no herbicide was applied was full of green and green weeds. The weed control effect of the invention is miraculous and unique, and the invention has unique control effect on the main malignant weed which is a Scrophulariaceae weed, veronica officinalis and is taken out of the soil repeatedly. Meanwhile, after the potatoes are sown, the soil before the seedlings is treated, and the soil after the application forms a medicament covering layer, so that weed seeds, buds and roots in the surface layer of the soil can be killed and inhibited, the soil is protected, the potatoes can normally grow, the potato seedling culture method is safe for the potatoes, and the yield can be increased. And the control area does not apply the pesticide, weed seeds, buds and roots in the soil normally germinate to form weed damage, so that the early growth and development of the potatoes are influenced, and the yield of the potatoes is reduced, therefore, the yield of the potatoes in the pesticide application area is increased by comparing the yield of the pesticide application area with that of the pesticide application area. The herbicide is suitable for field weeding of crops such as potatoes, corns, astragalus membranaceus and the like, has a good prevention and removal effect, is urgently needed by farmers, can liberate millions of rural labor force, and has a wide application value.

The herbicide has longer lasting period, which is different from chemical properties, and the mixed use of the active agents can improve the pesticide effect, the active agents can generate chemical reactions, and the interaction between the single agents can exist, so that the effect of joint addition can be realized.

The toxicity of metribuzin is the largest of the three raw materials used by the herbicide, but the metribuzin has low toxicity to people and livestock, and when the metribuzin is used alone for weeding, the dosage is usually about 70 grams applied to each mu of land, and under the dosage, the toxicity of the metribuzin in the potatoes is low to the people and the livestock, so that the dosage of the metribuzin in the herbicide is only 17-43 percent of the dosage of the metribuzin per mu, and meanwhile, the dosage of the other two raw materials per mu is far less than the dosage of the metribuzin when the metribuzin is used alone, so that the herbicide has low toxicity to the people and the livestock.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.