Graingrass, commonly known as “grass wolfberry†is the companion weed of the valley, and the strong ability of the sorghum sorghum to carry out the cropping, strong vitality, early maturity and easy falling of grains, and easy to cross-spray with the millet are one of the important factors affecting the high yield of the millet. How to prevent valerian must first understand its source.
One, the source of wheatgrass
1. soil with species. "One-year-old valley, three-year-old hoe", the heavily-cropped land on which millet is planted often has a large amount of glutinous grass. After its seeds mature, it falls into the soil and can maintain its germination power for many years.
2. Manure storage area. The chicken manure and livestock manure that are applied to large fields often contain a large amount of seed of cerealgrass, and germinate seedlings when they encounter suitable temperature and humidity conditions.
3. With the help of natural forces. There are a lot of glutinous grasses on the plains, fields, plains and wasteland. Grains of glutinous rice are small, soft, soft, and mature seeds fall with the wind or fall into the farmland with rainwater.
4. The small amount of sowing has created an opportunity for the occurrence of wheatgrass. If there is little drought during sowing, there will be relatively few seed germinations and sprouts, and the grass that is left in the soil will have a strong vitality and a strong productive force, which will lead to a large number of cereals.
Second, how to prevent
1. The rotation is down. The land that was planted with millet was changed to other crops such as corn, sweet potato, and sorghum within 2-3 years.
2. Deep plowing. Gulch grasses are buried in the soil and remain germinating for many years. If they are turned to the surface of the soil, they can germinate and sprout. Therefore, deep plowing should turn most of the seeds on the earth's surface into 15-20 cm soil layers so that they cannot sprout.
3. Timely removal of cereal grass. Gulch is characterized by its slender leaves, thin stems, prominent stem segments, mostly dark green or light red seedlings, shallow roots, and stems exposed on the surface. When the seedlings should be carefully identified, remove the seedlings of wheatgrass, clean, when the heading of wheatgrass should be promptly removed to prevent the next year left a lot of cereal seed.
4. High-temperature composting. Organic fertilizers, which are made from straw and weeds as raw materials, must be fully decomposed after high temperatures in summer to kill weed seeds and then apply them to farmland.
5. Pastoral cleaning prevents intrusion. It is necessary to remove the weeds in the fields, fields and roads in time so as to reduce the source of wheatgrass in the valley next year.
One, the source of wheatgrass
1. soil with species. "One-year-old valley, three-year-old hoe", the heavily-cropped land on which millet is planted often has a large amount of glutinous grass. After its seeds mature, it falls into the soil and can maintain its germination power for many years.
2. Manure storage area. The chicken manure and livestock manure that are applied to large fields often contain a large amount of seed of cerealgrass, and germinate seedlings when they encounter suitable temperature and humidity conditions.
3. With the help of natural forces. There are a lot of glutinous grasses on the plains, fields, plains and wasteland. Grains of glutinous rice are small, soft, soft, and mature seeds fall with the wind or fall into the farmland with rainwater.
4. The small amount of sowing has created an opportunity for the occurrence of wheatgrass. If there is little drought during sowing, there will be relatively few seed germinations and sprouts, and the grass that is left in the soil will have a strong vitality and a strong productive force, which will lead to a large number of cereals.
Second, how to prevent
1. The rotation is down. The land that was planted with millet was changed to other crops such as corn, sweet potato, and sorghum within 2-3 years.
2. Deep plowing. Gulch grasses are buried in the soil and remain germinating for many years. If they are turned to the surface of the soil, they can germinate and sprout. Therefore, deep plowing should turn most of the seeds on the earth's surface into 15-20 cm soil layers so that they cannot sprout.
3. Timely removal of cereal grass. Gulch is characterized by its slender leaves, thin stems, prominent stem segments, mostly dark green or light red seedlings, shallow roots, and stems exposed on the surface. When the seedlings should be carefully identified, remove the seedlings of wheatgrass, clean, when the heading of wheatgrass should be promptly removed to prevent the next year left a lot of cereal seed.
4. High-temperature composting. Organic fertilizers, which are made from straw and weeds as raw materials, must be fully decomposed after high temperatures in summer to kill weed seeds and then apply them to farmland.
5. Pastoral cleaning prevents intrusion. It is necessary to remove the weeds in the fields, fields and roads in time so as to reduce the source of wheatgrass in the valley next year.
YT-60
YT-60
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