According to our common sense, we must all know that as long as there is soil, whether it is cultivated land or their own flower pots, but where there are corresponding conditions, weeds will grow, especially when farming in the field, weeds are the most irritable to farmers. In order to weed in the field, many farmers are also painstakingly working hard for this, some turn the soil, some pull the grass, some directly on the herbicide, but the use of herbicides sometimes has no effect, what is going on? In fact, weeding also depends on the situation, only the herbicide is used correctly to "cure the disease".
1. Lettuce go to Tianjin
It can control annual grass weeds and broad-leaved weeds, and the control effect on broad-leaved weeds is better than that of grasses, and it also has a certain inhibitory effect on perennial weeds such as purslane, amaranth, dogtail grass, cow tendon grass, etc. Crops used: corn, sorghum, orchards, sugar cane, soybeans, peanuts, cotton, rubber plantations, millet, wheat, rice, tea plantations, etc. Note: Soil moisture (refers to the moisture of the soil) is good when the weeding effect is good, for poor moisture soil to increase the amount of water applied, peach trees are sensitive to weeding, not suitable for peach orchard use.
2. Dichosan
It can control most annual and perennial weeds, such as matang, ox tendon grass, dogtail grass, dry barnyard, lai, amaranth, indigo, purslane, sedge, etc. It can also be used for rice field anti-eye vegetables, four-leaf ping, buttercup and so on. Crops used: cotton, sugarcane, soybeans, peanuts, corn, cucumbers, rice. Note: Wheat field is prohibited, has a strong touch killing effect on cotton leaves, application must be used on the soil surface, cotton seedlings should not be applied after they are unearthed. The amount of sandy land is less than that of clay land, and sandy leaky paddy fields should not be applied.
3. Acetochlor
A variety of annual grasses and some broad-leaved weeds are ineffective against perennial weeds. Crops used: soybeans, peanuts, corn, cotton, rapeseed, rice, potatoes and other crops. Note: Master the application of pesticides before the emergence of weeds; with the improvement of soil moisture, the activity of the agent is enhanced; used in sandy soils with low organic matter content, apply low doses; rice seedlings must not be used; cucumbers, watermelons, melons, spinach, leeks, millet, sorghum are sensitive to acetochloride, use with caution or less.
4. Exterminating pine
Broad-leaved control of a variety of annual dicotyledonous weeds and sedges, such as: cang-ear, quinoa, quinoa, duck toe grass, indigo, water sedge, dwarf weed, etc. can only kill the aerial part of the perennial weeds, and are ineffective against grass weeds. Crops used: rice, wheat, peanuts, soybeans, tea plantations, grasslands, sweet potatoes. Note: Dryland should be applied when the broad-leaved weeds are basically out, and when it is in the seedling stage, when the rice field is weeded, it is applied after drainage, and it is irrigated after 2 days, otherwise it will affect the efficacy. Weeding at low temperatures is not effective, and wheat fields are applied well in spring.
The above is a summary of the scope and efficacy of the herbicide often used by farmers in the field, only the corresponding herbicide can achieve obvious results when used in the corresponding weeds, otherwise not only the money is spent in vain, but even the weeds have not been removed. In addition, there are still a large number of herbicides on the market, which will be used in about 39 kinds, and farmers should pay attention to the scope of use of herbicides in subsequent purchases before deciding to buy.