Guardian, this season's "Autumn vegetables"
In the autumn, greenhouse vegetables began to be planted. After experiencing the “rest†during the summer break, many farmers relaxed the management of the vegetables in the early autumn, often resulting in the phenomenon of seedling wilting after the planting of autumn quinoa vegetables. At the same time, due to the impact of high temperatures in summer, the temperature of greenhouses is still relatively high, and the amount of water required for vegetables is large. Water should be provided for the growth of vegetables in combination with actual conditions. In general, the autumn tube of shed vegetables is very important and has a basic role in the whole growth period. Therefore, it is important to strengthen the management of greenhouse vegetables in the autumn. Want to plant vegetables in the fall, first look at "three notes" Pay attention to increase the amount of organic fertilizer and biological fertilizer Before vegetable planting, pay attention to increase the amount of organic fertilizer, deep application of organic fertilizer. The purpose is to increase the content of organic matter in the soil, promote the formation of soil aggregate structure, and increase soil permeability. In addition, pay attention to increase the amount of biological fertilizer. Biological bacterial fertilizer can increase the amount of beneficial microorganisms in the soil, inhibit the occurrence of soil-borne diseases, and at the same time promote rooting, which is conducive to the formation of strong trees for vegetables and increase the yield in the later period. Pay attention to reduce the amount of chemical fertilizers. When the crops are planted before the big sheds, the organic fertilizers are often used more. Together with the large amount of late fertilization, it is decided that the amount of chemical fertilizers should be reduced when the vegetation is planted in the autumn. In high temperature weather, the solubility of chemical fertilizers in the soil is very high, and the salt content in the soil itself is high. Excessive application of chemical fertilizers is not conducive to the growth of roots. Be careful not to cover the black mulch in the entire shed. The environmental conditions in late summer and early fall not only benefit vegetables, but also help weed growth. A vegetable farmer to prevent weeds between lines, covered with black plastic film after planting, easily lead to high temperature under the plastic film, a lot of water vapor from the stem base volatilize, burn the stem base of vegetables, create opportunities for pathogen infection. Therefore, if black mulch film is laid, it should not be connected, keep a certain distance from the stem base of the plant, and press the stem around. If the temperature in the greenhouse is too high, it is not recommended that the vegetable growers cover the plastic film. After the high temperature (after the heat treatment), the plastic film can be covered. After planting vegetables, management is done before After the colonization of the vegetables against the wilt colonization, the flooded or flooded waters meet with cloudy days, the soil moisture is too high, the air permeability is poor, the roots are difficult to breathe, and the harmful substances such as ethanol produced during anaerobic respiration accumulate to damage the roots, resulting in plants Weary. It is recommended that vegetable growers cultivate on ridges to avoid planting or planting on a ditch; when flooding, flooding should be avoided, and water must not be present; diligent work should be done to increase soil permeability. As for the wilting of plants caused by fertilizer damage, it can be immediately watered with salt and flushed with biological bacterial fertilizer to ease. When the hormone concentration is adjusted to be as long as vegetables, try to control the temperature, fertilizer, and water, and spraying the booster is just a difficult countermeasure. If the vegetables are dropped or fallen, they are often caused by uncomfortable temperature and water. Find out the reasons in a timely manner and take corresponding measures, instead of simply adopting an increase in the concentration of anthers. Beware of viruses entering the shed. Current pests such as whitefly, aphids, leafhoppers and other insects also begin to multiply, and an insect-proof net should be set up at the air outlet to prevent such insects from flying into and contagious viruses. Once the pests such as whitefly, leafhopper and aphid have been found, they should be treated with 3% imiprom emulsifiable concentrate 1500 times and 10% imidacloprid WP 2000 times. Once infected with the virus, it will promptly use the mission to achieve prevention and control of bacillary peptides, and even spray twice. Vegetables need watering, these minds Planting water varies from season to season. Temperatures are high in summer and autumn. Planting seedlings is usually done in the afternoon or in the evening. After planting is completed, watering should be followed. If water is not poured, it can be watered the next morning. When planting at low temperatures, it is necessary to pay attention to weather changes at any time. Generally, after the bad weather is over, transplanting should be carried out in the morning. Usually watering should choose cold head warm period. Different growth periods require changes in the amount of water to take cucumber as an example. In clear weather conditions, the water is dominated by melons. After easing the seedlings, they are watered for 7 to 10 days/time. At the same time, watering can be combined with watering to reduce evaporation of soil moisture and promote deep rooting. High yields lay a solid foundation. During the fruit period, the amount of watering needs to be increased, 3 to 4 days/time, in time for the plants to add water and nutrients. When specifically watering, we must first look at the situation of the plant to determine the water requirement. If the cucumber growth point shrinks into a group, the stem must be in a circle without stretching, the dark green color of the leaves, the melon strips are dull, and the tips indicate the symptoms of water shortage in the plants; secondly, look at the degree of dryness and humidity of the soil. Make sure that the soil is dry and wet, and use proper water control in the early growth stage. After entering the result period, the water and fertilizer requirements of the plant are large. The number of times of watering should be increased. However, it is necessary to pour the ground water to avoid soil moisture changes. Larger, cracking occurs; look at the weather again. This should be divided into two aspects: First, timely attention to weather changes, no watering before the onset of rainy days, choose sunny morning watering, reduce the afternoon watering caused by excessive humidity at night, the day after watering, the next day to Increase ventilation to reduce the humidity in the shelter as quickly as possible. Second, different seasons and different watering. At present, the amount of evaporation of plants is large and the number of waterings is too many to allow the soil to be overly arid. The best choice for Analog hearing aids with earbuds design TWS Hearing aids,TWS Hearing amplifier,TWS Hearing Earbuds Shenzhen Sunshine Technology Co.,Ltd , https://www.shenzhenyatwin.com