Orchards, woodlands, mantles, and weeds on weeds have a great impact on plant growth and pests. Artificial weeds are laborious, costly, and inefficient. Weeding with chemical agents has low cost and high efficiency, which can save 40% of labor funds. At present, the herbicides suitable for orchards are mainly the following.
Fruit Farming
Pre-emergence soil treatment herbicides, weeds sprout 1 to 3 leaf stage, spray the entire garden carefully 1 times, can control the year without grass. Pay attention to soil moisture during spraying, and the effect of humidity is great. When drought occurs, increase the amount of water and use a bag of 20 grams per mu.
Farmers Music - 747
Inactivated ingesting stem and leaf herbicides in the vigorous weed, one spray and root kill. General weeds 1 package 1 barrels, vicious perennial difficult to remove weeds 4 to 5 bags per acre. After 4 to 5 days after spraying, the weeds began to turn yellow and died 10 to 15 days later.
Efficient grass cover
Internally transmitted grass weed herbicides can be used in broad-leaved crop fields such as soybeans, cotton, sugar beet, broadleaf vegetable fields. The prevention and treatment of 1-year-old, perennial weeds with 35 to 50 milliliters of weeds, prevention and control of malignant weeds such as reeds, sharp grass, imperata and other acres of medication 120 to 180 ml.
A lot of spring
After the non-productive shoots, the herbicides are absorbed by the buds, and the control effect of the forty weeds is good, and the perennial weeds can be killed by the roots. Ordinary grass dosage of 150 to 200 ml per mu, difficult to remove weeds 400 to 500 ml per mu.
Without trace
In order to eliminate contact with the stem and leaf herbicide, it can be quickly absorbed by the plant's green tissue. Lighting is an important condition for the efficacy of the drug. Spraying in bright sunlight can increase efficacy. Amount of 100 ~ 300 ml, usually 2 to 3 hours of weeds that die.
Glyphosate
Inactivated systemic herbicides. A wide range of grass to kill, has been applied for many years, the effect is good, the amount of acres of general weeds 750 to 1000 ml. 2-year-old weeds 1500 to 2000 ml. Deep-rooted weeding and shrubs 2000 to 2500 ml. In particular, it is pointed out that the pharmaceutical must be added with 0.25% detergent, and if the weather is high and dry, the effect of fractionation is better than that of one if the temperature is not increased. That is, the first time uses 40% of the total amount. Spray again 3 to 5 days later. There are two kinds of market sales, namely, 10% glyphosate and 40% agricultural water agent.
Trifluralin
Pre-emergent soil herbicides are mainly used in peaches, apricots, grapes, and walnut gardens. They are effective in some vegetable fields and can remove perennial weeds and some broad-leaved weeds that are produced by annual grasses and weeds and seeds. Gray radish, purslane, etc., are not effective for deep-rooted grass such as Imperata, Reed, Cocklebur, Solanum nigrum and so on. Amount of 100 ~ 200 ml acres, clay, weeds, high soil fertility available high limit, on the contrary reduced, sprayed immediately mixed soil, depth 3 to 5 cm, infertile people with low efficacy, soil residual effect 3 ~ 6 months.
Paraquat
This agent is a moderately toxic, contact-killing herbicide with rapid action. It does not affect the efficacy of the drug after half an hour of rain. Many kinds of 1-2 year old weeds in the orchard have good control effects, and the weeds only kill the above ground parts. The common dosage form is 20% water.
Acetate Suspension Emulsion
It is a mixture of acetochlor and atrazine, which is absorbed by young shoots and radicles of weeds. It kills the young shoots and radicles of weeds and stops them from growing. It can effectively control green foxtail, crabgrass, goosegrass, and quail. Grasshoppers and broad-leaved weeds, which have been propagated by seeds for 1 year, have long-lasting efficacy for up to six months. Commonly used formulations are 40%, 28% aqueous diethyl ether suspension. (
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