Farmers who plant vegetables after autumn delays will choose to plant vegetables in the fall. Planting vegetables in autumn is prone to dead trees, which is one of the most headaches for farmers. How to prevent the problem of dead trees?
1, burning seedlings
The burning seedlings will have a shed after the annual planting of the vegetables. Since some farmers apply manure without decomposing, they will plant vegetables after fertilization, or they will be planted in a few days after purchase, so that the manure can not be fully decomposed. Ensure that the applied manure is fully decomposed in order to customize the vegetables, and the professional fermented manure products can be applied to shorten the manure fermenting time, and the manure is applied to the shed for 7-10 days after the continuous sunny shack.
2, root
The excessive amount of watering caused the roots. Especially after the first watering and the second watering of the vegetables after planting, the roots of the vegetables after planting are weaker. If the watering is too large, it is easy to occur. The solution is to ridge the vegetables, and when the water is watered, cover the two-thirds of the ridge. Pay attention to the fact that no water can be poured. If the rooting phenomenon has occurred, it is recommended to properly control the water and perform the drawing to increase the permeability of the soil. The next time you water the water, the amino acid rooting agent can be applied with water. If the profit is about 10 kg per mu, the root system can be promoted. Growing.
3. Soil-borne diseases
Fusarium wilt, Phytophthora root rot, Pythium root rot, stem-based rot, and bacterial wilt can cause soil-borne diseases of dead vegetables. For the soil-borne diseases to grasp the key period, we must take prevention as the main comprehensive prevention and control.
The first period: the pre-planting of the biological bacteria. Before the plant is planted, the bio-bacteria such as Kuaibao and Taibao anti-Jining can be used to cure the bacteria after being applied to the soil, which can effectively prevent soil-borne diseases and prevent dead vegetables and live bacteria. It promotes root growth during reproduction.
The second period: rooting after slow seedling water. After the vegetables are poured into the slow-feeding water, the roots are poured with the chemicals in time. The following formulas can be used alternately, and each of the 2 and 2 waters is preferably filled twice. In addition, once the root disease is ill, water control is generally used to control the spread of the disease. However, if the vegetables are not watered for a long time in the hot weather, the vegetables will be wilting. Therefore, water should be poured 10 days according to the current weather and soil moisture. However, vegetable farmers must first use pesticides to irrigate the roots before watering, so as to effectively prevent the spread of germs with water. After the death of the dead tree, you can use the dead vines with chlorpyrifos + zhongshengmycin or Chunruimycin to irrigate the roots. Each half a catty of water is irrigated twice, pay attention to the supplemental broth when watering the roots, and wash the water with each acre. Applying 20 kg is better.
4, root knot nematode
Farmers can eliminate root-knot nematodes according to the methods described below for greenhouses with root-knot nematodes in previous years.
Dongying: After harvesting, the greenhouse film is reclaimed and the shed is exposed, and the ground is turned deep to forty centimeters.
Summer steaming: It can be ploughed in the summer on the same day. It can be quickly immersed in water and covered with shed film. The shed for more than ten days can completely eliminate pests and diseases.
Medication: In the initial stage of the disease, 50% phoxim emulsifiable concentrate 1500 times solution or 90% trichlorfon 800 times solution, or 80% dichlorvos emulsifiable concentrate 1000 times solution can be used for root irrigation or dripping spray.
Disinfection: After plowing the ground, use the quicklime to disperse the disinfection, or use the soil method such as waste tobacco to disinfect the insects, and then use the bio-organic fertilizer to improve the soil.
Change the shed: After the shed film is recovered, plant the lotus root, rice and other flooding methods to cure the season and then replant the vegetables.
Farmers can only improve the survival rate of vegetable colonization by reducing the above four points of prevention, and at the same time reduce the losses caused by colonization of dead trees.
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