1. Land selection, landscape. Soils are selected to be fertile, slightly higher with slopes, easy to drain and drain, and sandy soil that has not grown a melon crop is preferred. Upon harvest, the upper crop should be tanned in a timely manner, with an acre using organic or earthly fertilizer of 2000-2500 kg, urea of 30 kg and potassium sulphate of 30 kg as base fertilizer. Scrambling in the sun, and then scrambling up the trunk, 60 to 70 cm wide and 15 to 20 cm tall。
2. Selection of good varieties. Selection of medium, early, disease-resistant, hot, wet, transport-resistant varieties. A variety of species, such as the golden chong dragon, the kyohin i, the afu mini-melon and the seedless melon, are more suitable for growing in the south。
3. Sowing and planting in due course. In order to be on the market during the mid-autumn and national days. In general, seedlings were planted before and after 20-25 july, and planted in mid-august. (1) leaching seedlings. Two hours before the immersion, then the seed is immersed in 30 ~c water for four hours, while the seed skin is rinsed and washed, and the leached water is then sprouts in 25 ~30 ~c. (2) cultivation of seedlings. Slender beds are 80 cm wide and are grown using loxlocm nutrition cups. Nutritional homemade: six soils, four high-quality decomposed cattle, pig dung, 0. 5 kg of urea per square metre of nutrientd soil, 0. 5 kg each of ammonium diammonium and potassium sulphate, and full mixing of rear seeding in human cups. In order to ensure high fertility rates, the nursery beds use small arch sheds to cover weeds against the sun. (3) cultivation. Daejeon was planted in mid-august at a distance of 1. 6 metres, with a distance of 0. 4 to 0. 5 metres and 800 to 900 acres. When replanted, covering the membrane, it improves the small field climate and acts as a protection against drought and shade。
4. Strengthen field management. The following points should be noted in the management of its watermelon, which is short and fast in time。
(1) the whole chicken branch. With two chickens or three chickens in whole, one or two strong chickens are kept in sections 3-5 of the base of the main chicken, and the rest are removed. The whole branch uses hand-strangling, applying shears with tobzin solution to prevent infection,
(2) artificial pollination. Poaching of watermelons in the autumn is occurring during periods of heavy rain or drought, combined with low female vertigo, which is not easy to sit on, and the use of artificial pollination can increase the rate of sitting. The pollination time is 6-9 a. M., and the timing of the pollination is marked for identification at pick-up。
(3) timely prevention of pests and diseases. Autumn watermelon is the season of high-temperature infestation, often with anthrax, disease, frost, atrophy and virus. Anthrax is treated with an efficient, low-toxic pesticide, with 2 per cent of the agricultural anti-120 water dose 200 times the spray spray; 70 per cent of the acethion aluminum manganese zinc 500 times the disease; 75 per cent of the enzyme humid powder 800 times the frosty disease; 10 per cent of the diaphragm 200 times the liquid; and 1. 5 per cent of the virulent milk or virus a. Insects can be treated with 40 per cent of fruit butter, or 6000 times of kill cream, for aphids, irritation, etc。
China organic agriculture network
