When the buds sprouted and buds sprouted, the principle of leaving them and leaving them thin and dense should be removed. Excessive buds in the lower part of strong branches should be removed, leaving 4-5 buds. During the two years after the chestnut tree is grafted, some branches have obvious growth, which will inhibit the growth of other branches and affect the crown molding. After the new shoots begin to grow in the spring, the appetite shoots must be towed in time to promote more sapling formation. , increase the number of female flowers. Detasseling Usually, the ratio of chestnut male flowers to female flowers is 20 to 50:1. Too many male flowers consume large amounts of nutrients and reduce the yield. The scientific approach is to leave only the top 3 to 5 inflorescences of the new shoots, keeping the ratio of male and female flowers at about 5:1. In addition, the increase of potassium fertilizer is also conducive to inhibiting the growth of male inflorescence. In order to fertilize chestnuts, in addition to conventional nitrogen, phosphorus, and potassium fertilizers, the emphasis is on applying boron and zinc fertilizers. Control the spraying of 0.2% borax and 0.2% zinc sulfate in the presence of female inflorescence, once a week. Conditional chestnuts can be plucked each autumn, the results of the tree applied 40 kg of high-quality soil miscellaneous fertilizer, 0.75 kg of urea, 0.5 kg of potassium dihydrogen phosphate or 1 kg of superphosphate, increase the yield per plant. Blackout greenhouse ,Light dep greenhouse ,Auto light deprivation greenhouse,Blackout green house,film greenhouse JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.alibabagreenhouse.com
Spring chestnut tree management five points
Watering and moisture conservation spring, chestnut metabolism, nutrient operation in urgent need of water, early spring budding water can promote the formation of female flowers, chestnut planted in Shaanxi Province more than in the mountains, hills, thin soil layer, poor protection performance, need to cover the grass, early spring budding Irrigation can promote the formation of late female flowers.