Cauliflower prefers a warm and humid environment. It is not only resistant to low temperatures, but also grows in the shade and rainy summer. It can be cultivated in the open season in spring, summer and autumn. Must choose the appropriate variety: spring broccoli choose early maturing varieties, can be nursed in March-April, May planting; summer cauliflower can be nursed in June-July, 7-8 months of planting (must have shade rain measures); autumn cauliflower More commonly used late-maturing late-maturing varieties can be nursed in July and settled in early August; in winter, the cauliflower planted in the sowing date is about half a month later than the autumn broccoli sowing date. First, choose the varieties of varieties cultivated in the spring are mainly Swiss snowball, French cauliflower, Holland early spring, Ye Erfu, etc.; summer cultivation of the main varieties of Baifeng, Xia Xue 40, Xia Xue 50, etc.; autumn and winter varieties of planted Choose Dutch Snowball, Japanese Snow Mountain and so on. Cauliflower production is generally carried out by transplanting seedlings with a sowing rate of 20-25 grams per acre. The sowing date of summer and autumn broccoli is high temperature and rainy season. The amount of sowing must be increased, generally about 50 grams, and measures should be taken to reduce the temperature and prevent rain. At the same time, live seedlings are mostly adopted in summer, and the seedling age is generally 20-25 days. Second, the preparation of bed soil selection of poultry water sources near the terrain, high dryness, ventilation, soil permeability is good, the former has not been planted Cabbage and other cabbage vegetables fertile sandy loam do bed, deep exposure after exposure. Use 6 parts of fertile sumtian soil, 3 parts of decomposed horse manure that has been sifted, 1 part of decomposed manure or pig manure, and mix evenly and spread it in seedbed (5 cm thick). Third, bed soil disinfection can be used to disinfect the preparation of pharmaceutical soil. The preparation method of the medicinal soil is as follows: 5 grams of quintozene and 5 parts of zeocin are added per bed of bed soil, and then 15 kilograms of fine soil are added, and the mixture is evenly mixed to become a mixture of five generations. Before sowing, firstly spread 2/3 of the medicine soil, and then sprinkle 1/3 of the pesticide soil after sowing. Fourth, soaking germination will cauliflower seeds placed in 30 °C -40 °C water soaking soaking for 15 minutes, while removing pod seeds, and then soaked in water at room temperature for about 5 hours, then washed with clean water, placed at 25 °C conditions Moisturizing germination. Then, it is eluted with warm water of 25°C every 6 hours, and the seeds are turned up and down to make the temperature and humidity uniform. Generally, the buds can be budded after 2-3 days. Fifth, fine sowing sowing methods and procedures are: First pouring foot water, and then spread 10 kg of soil per square meter of soil, followed by sowing, the general sowing rate per square meter is about 10 grams. After sowing, cover an additional 5 kilograms of medicinal soil per square foot, then cover 0.5 cm thick fine soil, and finally cover the mulch to moisturize. Six, seedling management Summer and autumn sowing seedlings, due to the hot weather, a small arch shed about 1 meter high shall be erected on the nursery hoe, and the shade on the top shall be shaded. Seeding after 2-3 days sowing, before the emergence of the sunshade in the evening to remove the sunshade, the next morning watering until the soil is fully wet, watering the bed always keep the bed moist. After the first true leaf is grown, it is watered 2 times a day, with less watering or no watering in rainy days. 1-3 true leaves grow seedlings and weeding, leaving only 1 seedling in each nutrient bowl. During the growth period, the top dressing was arbitrarily applied. After the weeding and weeding, the topdressing water was topdressed with 0.2%-0.3% urea solution or 10% diluted human urine. To plant seedlings in about 20 days of seedling age, 3-4 true leaves, choose cloudy or sunny evening, according to the size of seedlings for grade spurification, spacing 8-10 cm square, side shift seedlings, while pouring root water , Shade the sun, slowly pour the seedlings and pour thin water for 1 time. After about 15-20 days, plant 6-7 true leaves. In the field management at the seedling stage, roots must not be harmed to prevent viral diseases. When it rains, it is necessary to drain water in time to prevent flooding. After the hot rain, the garden must be planted to reduce the soil temperature so as to facilitate cultivation of strong seedlings. Seventh, strong seedlings are generally mature seedlings, spring seedlings are about 50 days, and summer seedlings are about 25 days. The plant height of the strong seedlings is about 15 cm, with 5-6 true leaves, slightly dark waxy leaves, large and thick leaves, short internodes, short petiole, well-developed root system, multiple fibrous roots, and no pests and diseases in the whole plant. mechanical injury. VIII. Precautions 1. During the nursery period, pay attention to temperature and humidity adjustment. Under drought and low temperature conditions, young and old seedlings are easily formed. The younger seedlings have small cotyledons and are often deformed. If the temperature is low, the seedlings will grow easily, the seedlings will be thin, the embryonic axis will be long, and the cotyledons will be slender. Such seedlings are susceptible to disease. 2. Pay attention to nutrition supply and strengthen field management during the seedling period. If the nitrogen fertilizer is not available at the seedling stage, or if the roots are damaged when transplanting seedlings, the yield will be affected, and the flower bulbs will be small and the quality will be poor.
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