Since entering the hot summer season, some of the main vegetable producing areas have experienced severe weather such as storms, rainy weather, typhoons, hail, high temperature and drought, and damaged vegetables, vegetable seedlings and production facilities in the fields. The Vegetable Experts Steering Group of the Ministry of Agriculture puts forward the following guidance:
Linyi Fertilizer Network Copyright
Storm disaster prevention measures Linyi fertilizer Copyright
One is rain protection. The northern solar greenhouse, especially the soil wall greenhouse, should prevent rain erosion from scouring the exposed wall and the back slope, covering the felt and plastic film on the outside and the back slope of the wall, and conditionally upgradeable to plaster-hardened brick and soil composite. Wall. Large and medium arch sheds and shading facilities should be protected from heavy rain and strong winds, tighten the ropes and strengthen the shed film. Linyi Fertilizer Network Copyright
The second is drainage and flood control. Deepen and dredge drainage ditches, and low-lying parks, we must dig trenches to build cofferdams, prepare pumping machinery, and accumulate water or rainwater for timely drainage. The open field vegetable fields should be dug and drained in the rainy weather to prevent the water from causing vegetable roots. Linyi Fertilizer Network Copyright
The third is to prevent strong winds. The north shed facilities at the stage of high temperature suffocation, regularly check whether the film is damaged or repaired in time; the facilities that are carrying out the seedlings, pay attention to check the reinforced shading nets and insect nets; hang the open vegetables of the vines, pay attention to check the reinforcement rods And vine rope; green leafy vegetables can be used with a small arch shed cover shade net and film shelter from the wind and rain. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Field Science Management Measures Linyi Fertilizer Network Copyright
The first is seedling management. Summer is the seedling period of autumn and wintering vegetables. Generally, the suitable temperature of vegetable seedlings is 20 ° C ~ 28 ° C, soil moisture 60% ~ 80%, is not resistant to drought and flood. Therefore, special attention should be paid to strengthening the maintenance of nursery facilities and preventing water accumulation in the shed. Management is based on control, promoting the combination of control, preventing seedlings from growing, and cultivating age-appropriate seedlings. Linyi Fertilizer Network Copyright
The second is water and fertilizer management. Watering should be carried out in the morning and evening. Watering at high temperatures is prohibited, so as not to affect the metabolism and water absorption capacity of the roots of the plants. After the vegetables in the shed are watered, they should be ventilated and dehumidified in time to avoid the increase of humidity and cause diseases. According to the growth of the plant, the foliar fertilizer is sprayed reasonably to improve the plant's stress resistance. The top dressing should pay attention to the combined application of nitrogen, phosphorus and potassium fertilizers. Linyi Fertilizer Network Copyright
The third is pest control. Summer is a period of high incidence of pests and diseases. It should adhere to the principle of “prevention first, comprehensive preventionâ€, increase ventilation and reduce air humidity, and adopt physical control methods such as insect nets, sticky insect boards, sexual attractants, insecticidal lamps, etc. Poisonous low residual pesticides. When harvesting vegetables, it is necessary to strictly follow the safe interval of pesticide use to ensure the quality and safety of vegetables. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Post-disaster remedy Linyi Fertilizer Network Copyright
The first is to repair the facility as soon as possible. Damaged shed film, shading net, etc. can be repaired in time. If it cannot be repaired, it should be replaced as soon as possible. Re-cover, tighten the film line, and fix the facilities to avoid the wind and disaster, and ensure the subsequent production is not affected. influences. Linyi Fertilizer Network Copyright
The second is to strengthen the management of vegetables. If the loss is serious and the harvest is unsuccessful, it is necessary to remove the rotten leaves of the residual plants in time to prevent the disease from causing decay. At the same time, timely clean up the garden, seize the time to rush to plant, you can broadcast melons, beans and other vegetables according to the situation, you can also rush to grow short-growing cabbage, rape and other fast-growing leafy vegetables. For melons with positive harvesting period and less serious damage, it is necessary to timely correct and stabilize the plants, trim off the damaged branches, and harvest the mature fruits. Take measures such as loosening topdressing and topdressing to promote the growth of plants. First, foliar spray fertilizer, improve photosynthetic capacity and enhance stress resistance. Foliar fertilizer can be sprayed three times every 7 days. Second, we must strengthen the cultivation of cultivating soil and enhance the vitality of the root system. Third, we must strengthen the management of fertilizer and water, and timely apply fertilizer. Apply 15 kg of urea (or 30 kg of ammonium sulfate) and 4 kg of potassium sulfate per acre to promote recovery and development. Linyi Fertilizer Network Copyright
The third is to prevent pests and diseases. After the disaster, vegetables are prone to downy mildew, powdery mildew, early blight, soft rot and other pests such as aphids, whiteflies, red spiders, cabbage caterpillars, and Spodoptera litura. After cleaning the pastoral, spray disinfectants and insecticides in time. To prevent the occurrence of pests and diseases, prevent and control again after about 7 days. Pay attention to observe and strengthen prevention and control, so that pests and diseases are less frequent and less frequent. Linyi Fertilizer Network Copyright
Total 1 | <First <Prev 1 Next> Last> |
share to:
Metal silicon,
also known as Crystalline Silicon or Industrial Silicon, is mainly used
as an additive to non-ferrous based alloys. Metal silicon
is a product made of quartz and coke in an electric furnace. The content
of silicon in the main component is about 98% (in recent years, 99.99%
of Si is also contained in metal silicon), and the remaining impurities
are iron and aluminum. , calcium, etc.
Silicon Metal
Silicon Metal,Metallic Silicon,Crystalline Silicon,Industrial Silicon
Ningxia Evergreen Trading Co., Ltd. , https://www.nxevergreen.com