1. Select heat-resistant and disease-resistant varieties. The main heat-resistant varieties are Jinyan No. 7, Jinza No. 2 and No. 4, Xiafeng No. 1, Xia Qing No. 4, Lu Cucumber No. 9 and No. 4, and Zhongnong No. 8, Jinyou No. 1 and Zhongnong 1101, etc. .
2. timely sowing. Shandong, Hebei, Tianjin and other places generally start from late July to early August, and the growth period is generally about 100 days. The sowing density should be controlled at a row spacing of 60 cm and a spacing of 20-30 cm. The method of direct seeding and transplanting can be used from sowing to transplanting in general for about one week. In addition to time seedlings, 200 g of compound microbial fertilizer (600-800 times liquid) is poured per seedling stage, or soil conditioner (per 100 grams per mu) rooting is beneficial to the early root development of cucumber and prevents the occurrence of root rot and damping-off during seedling stage.
3. Science uses fertilizer. Autumn delay cucumber growth period is relatively short, so water and fertilizer should be enough. Live cucumber can not apply enough basal fertilizer in the early stage, when the cucumber flowering and fruiting melon began to flush humic acid fertilization, with 20 to 40 kg per acre, after each pick cucumber, combined with water, chase a fat, do not empty water . In combination with topdressing, foliar should be sprayed with Fengshao No. 1 and inducer, sprayed once every 10 to 15 days, and sprayed continuously for 3 to 4 times, which is necessary to prevent mellow melons and melons and increase yield. Cucumbers like organic fertilizers. In particular, large amounts of decomposed chicken manure and cow dung must be used. It is recommended that 4,000 to 5,000 kilograms per mu be mixed with 400 to 480 kilograms of bio-organic fertilizer and 30 kilograms of potassium sulfate (315) compound fertilizer as base fertilizer.
4. Strengthen management of melons. Autumn delay The growth period of cucumber is short and the melon period is only 40 days. By nurturing strong seedlings, promote multi-differentiation flower buds. In the early stage of fruiting melon, the main cranberry fruiting melons were dominant, and more than 12 lateral branches were removed. The left and right melons should be left with 3 to 4 side branches. Each side branch should leave one melon and one leaf topping to achieve the effect of primary side branches and fruiting. In the later stages of the squash, it is adapted to remove old leaves and diseased leaves at the bottom, reduce nutrient consumption, and ensure the growth of melon strips. In order to increase the number of female flowers, the growth hormone ethephon can be used for treatment, and the concentration should be controlled at 100 ppm. In the morning, the cucumber plants are sprayed and sprayed once every two days for a total of three injections. Note that the concentration should not be too high. If the concentration is too high, flowers will be torn and prone to phytotoxicity. The number of melons after spraying is obviously increased. The fertilizer and water must be followed closely to ensure sufficient fertilizer and water before increasing the yield.
More and more people raise ornamental fish,fish tank also developed from the past single appearance to a variety of tall and tall now,put a beautiful big fish tank in the living room,you can see every day as soon as you enter the door,the troubles of the day will go along with it. Whether fresh water tank or sea water tank,the process of fish farming will encounter such problems,such as poor water quality,turbidity, water plants withered yellow,fish and shrimp sick, and so on,this time it is necessary to take corresponding measures to save the aquarium ecosystem.
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