What are the common weeds in vineyards? What kind of herbicide is used in the grape field? How to control weeds scientifically?

The grape skin is thin and juicy, sour and sweet, nutritious and has the laudatory name of "crystal pearl". The grape originated in West Asia, which is said to have been brought into China by Zhang Qian during his mission to the Western regions of the Han Dynasty through the Silk Road. It has been planted in China for 2000 years. What are the common weeds in the vineyard? What kind of herbicide is used in the grape field? How to control weeds scientifically?

Common weeds in vineyard

Annual weeds in vineyards include Kentucky bluegrass, bovine bent, dogtail grass, oxen grass, thrush grass, purslane and so on. Perennial perennial root weeds are lotus seed, aconite, white grass and so on.

What herbicides are used in vineyards?

Chemical control of weeds in grape field has been paid more and more attention by farmers because of its convenience, thorough weeding and low cost. Different application methods and pesticide types can be selected according to the types of weeds in grape field and the different application time.

1. Control perennial weeds such as Reed in grape field, field twirl and so on.

Selected medicament: 41% glyphosate water agent

Dosage: 41% 250g~300g per mu of Nongda.

Application time: in late spring and early summer, when the Reed grew to 60~80cm high, the field spiral flower also grew, and other weeds had sprouted and unearthed before spraying; application method: 16~20kg/667m2 with water, mix the medicine evenly, add 20: 30g washing powder, dissolve and spray with hand pressure sprayer. The spraying time should be chosen in clear and windless weather to prevent drift, and the rain should be re-applied according to the situation within 12 hours after spraying. Put a protective shield on the sprinkler so as not to spray the liquid on the grapes. Spray evenly and spray the leaves of weeds as much as possible. Experiments show that the above weeding methods can kill more than 95% of the reeds in the grape field, more than 90% of the field flowers, and other weeds can be killed.

2. Soil treatment agents to control annual weeds after grape is unearthed in spring, many kinds of soil treatment agents can be selected to control weeds before weeds are unearthed.

1.72% Metolachlor: 50ml mixed with water 30kg/667m2, ground spray, can not mix soil after spraying, can control all Gramineae weeds and some dicotyledonous weeds.

2.50% Acetochlor: 150~200ml mixed with water 30kg/667m2 spray, the method of application and the range of weeding are the same as those of Metolachlor.

3.33% Caicaotong EC: 150 ~ 200ml mixed with water 30kg/667m2 ground spray, the application method and weeding range are the same as those of Metolachlor. You can choose one of the above herbicides. Through the experiment, the duration of these pesticides can reach 45-60 days, the short-term control effect is more than 95%, and can still reach 80-90% after 45 days. If it is sprayed twice in one growing season, the problem of annual weeds can be basically solved.

Note: when spraying, try not to spray to the green parts such as grape leaves, buds and young stems, so as not to cause the leaves to dry up. Try not to use this herbicide for weeding in newly planted vineyards.

It must be noted that the new vineyard is weeded manually or mechanically as much as possible. I think it's good to grow some grass in the field, and use as little herbicide as possible.

How to weed the vineyard?

In addition to chemical weeding, the control of weeds in grape field can be divided into artificial and mechanical control methods.

1. Manual prevention and control

It is one of the main ways adopted by grape growers now, but because it is time-consuming and time-consuming, and the control effect is limited, farmers urgently need to use other means to replace it.

2. Mechanical prevention and control

According to the distance between grape rows, suitable agricultural machinery can be selected for weed control. After weeds grow, small four-wheeled tractors can be used with small ploughs for interrow ploughing and weeding, or rotary tillers for rotary weeding. The advantages of mechanical weeding are: ① has relatively high work efficiency and good weeding effect; ② reduces the use of pesticides, which is conducive to the production of green food; ③ is easy to operate and easy for farmers to accept; ④ soil is loose, which is conducive to the heat absorption of the ground, which is conducive to the accumulation of glucose, pigments and other substances.