To think of vegetables in the morning market
Seed Disinfection Off: Use 15 to 15 minutes with 55-60°C hot water to kill pathogens attached to the surface of the seed and part of the seeds that are lurking inside the seed. When disinfected, insert the thermometer into the water, strictly control the constant adjustment, stabilize the temperature, and ensure the time. Seed Germination Off: After every 15 minutes, use soaking in warm water below 30°C for about 8 hours, then wash it again and put it in a gauze bag, germinate and set it at 25-30°C, wash it every other day, and ensure the temperature before germination. . Disinfection of bed soil: bed soil is not sterilized, and there are many diseases at the seedling stage, and the resulting loss cannot be recovered. The method is: Solanaceous vegetables are mixed with 70% pentachloronitrobenzene and 50% thiram or mancozeb, the mixture is 8-9 grams per square meter, and 15 kg of semi-fine soil is mixed. One-third of the padding is seeded soil, and 2/3 of the cover soil. Melon with 50% carbendazim or thiophanate-methyl 1 part, 1000 dry fine soil, dubbed medicine soil, spread 10 kg per square meter, method ibid. Temperature Off: The temperature is 25-30°C and the ground temperature is 22-25°C. The seedling emergence is fast and homogeneous. In general, seeds cannot germinate easily if they cannot germinate under conditions of low temperature and high humidity for a long time. After the vegetable seedlings are flushed, the temperature in the greenhouse is kept above 20°C during the day and above 10°C in the evening. The seedlings are subjected to a low-temperature hardening seedling to enhance disease resistance, cold resistance and avoid long growth. When the outside temperature is no higher than 15°C at noon noon, ventilation can be made through the window and the sun shines. At night, the outside temperature is lower than 4°C to cover the straw curtain. In the two pieces of cotyledons fully stretched, the first true leaves exposed, the daytime shed 25-28 °C, the night temperature of the greenhouse to 15-20 °C, in order to facilitate the growth and development. Humidity: humidity is too high, soil temperature is not easy to rise, poor growth of seedlings become weak seedlings, prone to disease or frost damage; low humidity, lack of water, fertility inhibition and become a frozen seedlings. Low humidity can solve the problem, while high humidity is more troublesome, poor handling, damping-off disease, blight, one after another, can cause large dead seedlings, therefore, must pay great attention. The method of dehumidification is: (1) Ventilate and dehumidify without affecting the temperature of the greenhouse. (2) Pouring enough water during sowing, and avoid watering at seedling stage. (3) Apply 0.5-1 cm of plant ash on the bed to increase moisture and temperature. (4) A parallel light bulb is placed under a small shed to dampen and fill light. (5) The electric wire is laid on the bottom of the bed before sowing. Disease related to disease prevention and control. Solanaceous fruit damping-off disease can choose to use quintoxe or anti-virus quinone, melon plague disease can choose to use chlorothalonil or anti-virus quinones; blight can choose to use dexamethasone or methyl quicterine, both diseases occur simultaneously Preclosure or Formosa can be used. If none of the above two drugs can choose chlorothalonil or anti-virus drugs. For the prevention of Bacillus subtilis, Brown Vegetation, and Botrytis cinerea should also be prevented from the seedling stage. Chlorothalonil, antiviral bacillus and sulfasulfuron should be selected. According to the situation, it is possible to flexibly master comprehensive prevention and control. Fertilization Pass: For cultivating strong seedlings, formula fertilization should be adopted when preparing bed soil, and base fertilizer should be applied at one time, so that the seedling period is not top-dressing. If the bed soil is not fertile, small yellow leaves of the vegetable stems and stems should be topdressed. But should pay attention to: (1) Select the sunny day morning topdressing human fecal urine, pig manure, diluted with 20 times the water and then top-dressing, and finally wash the seedlings to prevent burning leaves. (2) As far as possible without fertilizer, if the depth of use is low, 0.1% urea is appropriate. (3) The application of "Alizarinactone", which is an endogenous hormone of the plant, is different from any other hormones and chemical fertilizers, is non-toxic and very safe, and can be sprayed on bed soil and foliage, showing a deep rooted foliage and vigorous seedlings. , With enhanced stress resistance and good comprehensive traits, it is an ideal boosting agent for nursery.