Vegetable summer seedling technology
Seedbed preparation 1 seed bed selection. In the summer nursery bed, you should choose a flat, high-dry, well-drained, shady-ventilated field. 2 Preparation of nutrient soil. First, fertilize the soil with the same crops as the same crops, and then ferment the fully fermented organic fertilizer, and mix it evenly according to the ratio of soil to fertilizer ratio of 6:4. Then, 50% thiophanate or carbendazim 80 g and 2.5% trichlorfon 60 g were added per 1000 kg of nutrient soil to kill the pest source. Finally, the prepared nutrient soil is filled into a plastic bowl or paper basket. 3 seed bed production. It is best to use sorghum for summer seedlings. The height is generally 5 to 10 cm and the width is about 1 m. The kneading surface should be flat. After the raft is finished, place the plastic raft or paper raft on the raft, and fill it with fine sand between 钵 and 钵. Finally, digging the drainage ditch around the seedbed. Seeding technique 1 seed treatment. Summer seedlings are prone to disease, seed disinfection must be done to avoid seed disease. Seed disinfection can be soaked in 10% sodium hydrogen phosphate solution at room temperature for 20 minutes or soaked with 1% potassium permanganate solution for 15 minutes. Rinse with clean water and then germination. For cold vegetables, such as celery, lettuce, etc., create lower temperatures for germination. 2 Choose the seeding time. In summer, it is necessary to select the sowing time according to the characteristics of the vegetables, so as to avoid the high temperature and exposure of the seedlings. For example, Chinese cabbage usually emerges 48 hours after sowing, so it is more suitable to plant in the evening. In this way, the seedlings are unearthed just in the evening, and can grow through the night to the daytime, and the resistance to high temperature and strong light is relatively strong. 3 fine seeding. In the afternoon before the planting or the morning of the same day, the bottom of the water is poured. If there is a gap between the cockroach and the cockroach, the sand should be filled again. When sowing, shovel 2 to 3 cm deep in the nutrient bowl, dig a shallow hole 0.3 to 0.5 cm deep, and sow 2 to 3 seeds per hole, then sprinkle a layer of fine soil on the seeds and cover the seeds. After the seedbed is planted, the surface of the seedbed is evenly covered with fine wet soil, and the thickness of the soil is about 2 to 5 times the thickness of the seed. After sowing, insert an arch every 1 meter or so on the seedbed to make a small arch shed, covered with silver white or green shade net, which can reduce the glare and high temperature hazard, and avoid the phlegm and reduce the spread of the virus. At the same time, plastic film should be prepared so as to cover it in time before the rainstorm arrives to prevent rain or water from hitting the seed or seedling. Seedbed management 1 and time seedlings, fixed seedlings. The summer temperature is high. If the seedlings are crowded, it is very easy to grow. Therefore, it is necessary to plant the seedlings and seedlings. According to the vegetables to be cultivated, one or two healthy seedlings are selected for each meal. The diameter of the nutrient bowl used in summer can be appropriately larger, generally 10 to 15 cm. 2 appropriate shade. For the seedlings that are cold and weak, they can be covered with some straw curtains at a certain distance on the sand net to form a shade of flowers, but gradually reduce the shade in the later stage. 3 use a good film and sand net. Before the rainstorm arrives, cover the plastic film in time, and cover it tightly. After the rainstorm, remove it in time. The gauze should be covered in the early stage, and the visible climate gradually rolled up. 4 control the amount of water to prevent length. The summer temperature is high. If there is too much water, the seedlings are very easy to grow, so the watering should be controlled. Master the drought without pouring, spray gently during the drought, keep the seedbed wet. Heavy rain will cover the membrane to prevent rain, and use the drainage ditch around the seedbed to drain in time to prevent water accumulation in the seedbed. 5 timely spraying, prevention and treatment of "one disease and three diseases." In summer, aphids are seriously endangered. If they are not treated in time, they are also prone to cause viral diseases, so they should be given enough attention. For the control of locusts, it is mainly to cover the gauze to avoid sputum. If aphids occur, they can be controlled by killing and killing cockroaches, killing emulsifiable concentrates, kung fu emulsifiable concentrates, and Uranus emulsifiable concentrates. When spraying, care should be taken to align the nozzle with the back of the leaf and spray the medicine onto the body as much as possible. In summer, the most common diseases in the seedling stage are rickets, blight and viral diseases, and timely prevention and treatment. For squatting disease, blight, can be controlled by Plex, carbendazim and other agents. For viral diseases, in addition to the control of aphids, it can be controlled by viruses, plant diseases and other agents. 6 Properly control. Due to the high temperature in summer, it is not conducive to the flower bud differentiation of fruit and vegetables, and can be properly controlled. Cucumber can spray leaves with 200 μl/L ethephon in one leaf and two leaf stage to promote the formation of female flowers; tomato can spray 100 μl/L of auxin or 1000 μl/L of chlormequat in 3 true leaves. , once every 7 days, spray a total of twice. 7 Do it in time. After 10 to 15 days before planting, it will be inverted once, and the distance between the rafts will be increased to promote the seedlings.
Dehydrated onion has the effect of stimulating the sweat glands of the body to sweat and dissipate heat. Scallion oil can stimulate the upper respiratory tract and make it easier to cough up sticky phlegm. Onions contain allicin, which has obvious anti-bacterial and viral effects. In particular, the inhibitory effect on Shigella and dermatophytes is more obvious.
Dehydrated Green Onion,Nutritional And Healthy Green Onion Rings,Scallion Rings For Stir-Fry,Delicious Dehydrated Green Onion Rings Laian Xinshuyu Food Co., Ltd , https://www.xinshuyufood.com As the saying goes, "Miao is good at 50% harvest", the quality of the seedlings has a great impact on the growth of vegetables. In summer, due to many unfavorable factors such as high temperature, strong light, heavy rain, high incidence of pests and diseases, it is extremely difficult to cultivate strong seedlings, while autumn vegetables, autumn delayed vegetables and some winter vegetables need to be nursed in summer. So, how to overcome the summer unfavorable factors and cultivate high-quality vegetable seedlings? Vegetable producers must master the following technologies:
