Five measures of drought-resistant production of vegetables
First, keep vegetables in the field and extend the harvest period. At present, vegetables are in the harvest stage, and management focuses on drought protection and seedlings. Watering or irrigating water should be done in time. Try to choose before the sun comes out in the morning and after the sun goes down in the evening. Short-term showers or watering should be followed by cultivating loose soil to inhibit soil moisture evaporation. Melons and Solanaceae are prone to sunburn and they must be sun-protected. Timely supplement of available fertilizers, fertilization should be carried out in the morning and evening, so that diligence can be applied thinly and 0.2% potassium dihydrogen phosphate can be used for foliar application. Pruning is also a method to increase production. Solanaceous vegetables can be trimmed off the branches without fruiting and the top of the aging branches. The melon vegetables can remove the lower yellow leaves.
Second, timely sowing of fast-growing leafy vegetables. In the current continuous dry weather, it is possible to rush a broadcast of Chinese cabbage, cabbage and cabbage before autumn and winter to increase the supply of leafy vegetables in the market. In the layout of cornices, select vegetable varieties that are resistant to high temperature, drought, strong resistance and heat resistance. If the dish can choose to use Astragalus 1, Chinese cabbage can choose to use heat 605.
Third, keep Qiuyu vegetable seedlings. Vegetable base should promote the concentration of drought-resistant autumn vegetables, greenhouses, mulch, sunshade net coverage and other measures to heat moisturizing nursery. Seedlings planted in autumn, such as Chinese cabbage, Chinese cabbage, and cabbage, should be promptly irrigated, and should be filled with cold water and cool water. For large seedlings such as cabbage, the current lack of water for transplanting, to control the growth of the seedlings, the first site protection, until the time of raining transplant.
Fourth, try to apply facility conditions. Straw mulching is a very inexpensive and practical measure. It can make full use of straw, weeds, etc. After cutting, it can evenly cover the rows of crops. The thickness should be 15 cm, especially for mountainous vegetable fields. Sunshade nets and insect nets cover protection are currently widely used measures. When the insect nets cover the net, they must destroy the remaining insects in the shed in order to truly achieve the effect of pest control. For micro-spraying, drip irrigation and other facilities, sprinkler irrigation facilities should be laid according to the different types of vegetables, and micro-accumulation and micro-irrigation should be carried out according to local conditions.
Fifth, strengthen pest control. The year of drought is often a high-risk year for diseases and insect pests, and the focus is on insect pests such as melons, Spodoptera litura, Spodoptera exigua, and Myzus persicae. According to pest information, first take agricultural control, apply biological pesticides or high-efficiency, low-toxic and low-residue counterpart pesticides. Such as Gualou with 52.25% farmland 1000 to 1500 times spray. Spodoptera litura was sprayed with 15% 4000 times spray. The frequency-vibration insecticidal lamp should be vigorously promoted to lure the adult moths of the nocturnal moth pests. Yellow or blue board armyworms can also be used, and often field inspections are conducted. If egg masses and colony-infested young larvae are found, they are manually picked up. dead.
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