Pollution-free standardized cultivation techniques of Banana

Zhangzhou banana pollution-free standardized cultivation techniques have been studied, and remarkable results have been achieved. Now introduced as follows: first, banana garden selection: when planting bananas, we should choose broad, flat or hilly areas without pollution sources, convenient transportation, good drainage and irrigation, ventilation and light transmission, deep and fertile soil, neutral or slightly acidic loam soil. And use mechanical deep turning over 40cm to meet the requirements of deep, loose, soft and flat. Second, select excellent varieties: according to research, the excellent banana varieties suitable for planting in Zhangzhou are: medium-stem Brazilian banana, Williams 8818, Mexico No. 3, Taiwan banana No. 2, Zhangjiao 9 and so on. Third, the cultivation of strong seedlings: vigorously promote industrial seedlings, the use of advanced high-tech biotechnology for banana test-tube plantlets breeding. 4. timely planting and reasonable close planting: before planting banana test-tube plantlets, they should be cultivated in a nutrition bag in a plastic greenhouse for 2 to 3 months, and then be planted when the seedlings have 8 leaves. They are generally planted in February to March, with a planting specification of 2.0 × 2.5m and 1950 plants per hectare. Rational formula fertilization 1. Fertilization in new banana orchard: except that there is enough organic fertilizer as base fertilizer before planting. Starting from 15 days after planting, diluted human feces and urine were applied every 7 to 10 days, and 1500 times of high potassium solution of organic bio-light fertilizer plus 0.3% potassium dihydrogen phosphate were sprayed and poured once respectively, and about 4 times of fertilization were applied in the first half of the year. After growing 25 pieces, we should re-apply flower ear fertilizer for 1 and 2 times to cultivate strong stalk and large flower ear. 2. Fertilization in the old banana garden: if the soil quality is suitable, the slow-acting fertilizer and 60% of the quick-acting fertilizer used in the whole year can be applied at the end of February, and the remaining 40% of the available fertilizer can be applied in May respectively. Before the occurrence of new roots, the first fertilization should be combined with deep turning and deep burying of dried animal manure (chicken, pig, cow, sheep manure), cake fertilizer, soil manure, green manure and other organic manure, combined with calcium superphosphate, ammonia bicarbonate and potassium chloride. During the vigorous growth period of banana plants from May to June, the second fertilization was mainly quick-acting ternary compound fertilizer plus potash fertilizer, combined with foliar spraying of Gaoli high potassium solution for 2 times. Comprehensive prevention and control of diseases and insect pests 1. Vigorously promote the selection of virus-free test-tube seedlings, increase the application of organic fertilizer and phosphorus and potassium fertilizer, and do a good job of drainage and irrigation water, ventilation and ventilation. 2. At the seedling stage, carbendazim, topurazine, doxorubicin and Dolituo plus high-efficiency cyhalothrin or cypermethrin were used to add light fertilizer up to 1500 times of high potassium solution, alternately sprayed 3 times 4 times. 3. Underground pests and nematodes should be sprinkled with low-toxic and low-residue pesticides such as Dichongling and soil insect eradication for 2 or 3 times in winter and spring. 4. Zhongda focuses on the control of weevil, Spodoptera litura, aphids and other pests at seedling stage. Low toxic pesticides can be sprayed on the back of leaves and on pseudostems for 2 or 3 times. 5. During the budding period, Dianlituo, Ain, Oobo, Beppur, Wanxing, Fuxing, Shigao, Shike, Cuibei, Banana stability, Pu hydantoin, Barnali, Yibao, Mengshengsheng, Dasheng M45, plus Guanglida banana fullness agent 1250 times liquid were alternately sprayed twice, then added light fertilizer Gaolida banana 1500 times liquid alternately sprayed 2 times for 3 times. 7. Fangfeng bagging fruit protection in banana seedling stage, use bamboo pole to insert 45cm deep into the edge of banana plant, bind 2 to 3 places with cloth strips, and use nylon rope and bamboo pole to strengthen wind resistance in time after budding. After spraying 2 or 3 places of disease prevention and elongation agent after bud breaking, the banana fruit string was put into a blue plastic bag to keep warm, and the yield was increased significantly. Eighth, scientific harvest, storage and transportation of banana fruit can be harvested when the maturity reaches 780%. After harvest, the processing procedure for the ear is as follows: the harvest ear is transported to the treatment point → falling comb finishing → selected classification → washing → antiseptic treatment → dried → packaging → storage and transportation.