Autumn sowing summer sowing, when the high temperature season, seed germination is difficult, not easy to seedlings, seedlings long, early flower bud differentiation, bolting quickly. Therefore, nurturing strong seedlings and preventing premature bolting are the key to the success of cultivation.

Select varieties used heat-resistant, fast-growing, good quality early maturing varieties, such as special heat-resistant white peel, heat-resistant white tip leaves, Zhengxing 3 and so on.

Seeding nursery general nursery transplanting, July-September for the appropriate sowing; low temperature germination before sowing, vegetable farmers use frozen method, that is, after the seeds soaked for 24 hours, wrapped in gauze, in the refrigerator or freezer, in - 3 °C ~ 5 °C temperature to freeze for a day and night, and then placed in a cool place, 2-3 days to germination; also available hanging law, with cold water to soak the seeds for 1 to 2 hours, to "floating seeds", wrapped with gauze , placed in the well 30 centimeters from the surface of the water, remove the seed every day 1 to 2 times, for 3 to 4 days to germinate; as far as possible after the sowing to create mild moist conditions, can be set up shade, keep the seedbed moist; from the emergence of uncovered film Before planting, use 500 times 75% chlorothalonil spray every 7 to 10 days to prevent the occurrence of damping-off and epidemics; and time seedlings, post-emergence application of decomposed diluted faecal water or potassium dihydrogen phosphate 0.1% Solution dressing 1 to 2 times to enhance seedlings.

Site preparation planting age 25 to 30 days, 4 to 5 true leaves when the planting; seedling age is too long, seedlings are easy to "boil"; per acre Shi compost and manure dung and 4000 kg of compound manure 50 kg, do 1.2 ~ 1.5 The rice sorghum is sorghum; row spacing is 30-35 cm, plant spacing is 25 cm, and 6000-7000 plants per mu are planted; with tender plants listed, the density can be doubled, and the row spacing is 2015 cm.

Sun Dried Cut Kelp

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