What can be done to keep the land free of weeds?

Chemical weeding method for cultivated land. If it is arable land, herbicides can be selected according to the crop for closed weeding and post-seedling stem and leaf treatment. Generally, corn fields can be closed for weeding, or with acetochlor and thiensulfuron-methyl closed weeding, first, mulching method.

I am a fruit tree planter, often go to visit and learn other people's orchards, I have seen a family's hillside peach orchard has no weeds at all, the ground is covered with waste felt carpet, is the kind of non-woven fabric, the advantage of laying non-woven fabric is good permeability.

Rare and valuable weeds, growing more is not a disadvantage, farmers can dig in exchange for a certain economic income, and the value of the average value of the weeds all over the ground is the farmer's heart, if left unchecked, the crops will be in vain. Rice was originally terrestrial and grew in competition with weeds, but later people used rice to grow well in water, and omitted the paddy field planting method of competing with terrestrial weeds for transplanting, flooding water to pickle weeds, or not allowing terrestrial xerophytic weeds to grow and reproduce at all.

Before planting crops, the land should be deeply ploughed and deeply cultivated, and the weeds with weak fecundity should be buried deep in the ground and used as fertilizer after rotting at the bottom; Dig up all the tenacious weeds and clear the ground; Dispose of the weeds in the ravines near the fields. The purchase of a clean saw does not fully cover the land of the orchard, with a thickness of about 4-5 cm, which can curb the growth of weeds, maintain soil moisture and soil erosion, and attract various pests to invade the orchard, and so on.

In addition to excluding the fertilizer source factor, we can add mulch to the soil to cut off rain and sunlight to reduce the living environment of weeds, such as plastic film and dry straw and chaff, etc., often the ability of weeds to compete for glory and fertilizer is stronger than that of crops. For example, barnyard grass is a carbon-4 plant, and its photosynthetic efficiency is stronger than that of carbon-3 crop rice, so even if rice grows vigorously, barnyard grass can grow in the same way.

Timely deep ploughing for manual weeding. The process of weeding is indispensable, whether it is manual weeding or machine weeding, as long as the purpose of weeding can be achieved. However, manual weeding is the best.

Through a reasonable land rotation system, coupled with scientific farming, the implementation of land deep ploughing, rotary land, harrowing land combination, but also with shoveling land combination, to achieve the purpose of weed eradication. If it is woodland and other abandoned land, paddy fields, pond ridges, etc., we can use herbicides to control weeds.

Most of them are chemically stifled, often with herbicides such as acetochlor and paraquat; There are also some people who use physical weeding, which has a fast effect, but is easy to repeat.

1. You can first remove the original grass in the land, and then sprinkle lime in the land, and turn the soil frequently, so that the land will not grow grass.

2. The above method is to use lime to produce a chemical reaction with the water in the land to destroy and corrode the nutrients suitable for the growth of grass in the land, which is suitable for the situation that the land does not continue to be used as planting land.

3. If you just don't let grass grow on the surface of the land, you can raise poultry or cattle and sheep on the land that you don't want to grow grass to weed, which is a natural and pollution-free method to make the land not grow grass. Animal manure also makes the land more nutritious and suitable for growing crops.

4. You can also choose to make the land grass not grow through physical mulching. The land is covered with plastic film, straw or other hay to reduce the sunlight or air of the covered land, thereby inhibiting the growth of grass and achieving the effect of weeding.