The scientific fertilization of pear tree is an important measure to improve the quality of pear fruit. Pear tree top dressing is not timely, unbalanced will affect the normal fruiting and growth of the pear tree; enter the fruiting period, a large amount of flower buds, fruit set rate is high, a large number of results lead to poor fruit quality, adjust the fruit setting amount through thinning and fruit thinning, only to achieve high quality High yield and high efficiency. Four key periods of fertilizing pear trees The application of boron boron during flowering is more trace elements for pears. Generally, boric acid solution with a concentration of 0.2% to 0.3%, or 0.3% to 0.5% borax, should be sprayed at the initial flowering stage and after the postflowering stage. Promote pollen absorption of sugar, activation of metabolic processes, can stimulate pollen germination, fertilization embryo development results, increase the vitamin C content of the fruit. When heavy boron is deficient, 667 square meters of borax or boric acid 200-300 grams is mixed with farmyard fertilizer to mix and open the ditch, which can prevent the fruit from wood bolting and improve fruit quality. The nitrogen, phosphorus and potash topdressing of young fruit is generally after the pears are grown and the young fruit should start to grow. They should combine turfgrass loose soil, 0.3 to 0.5 kg nitrogen fertilizer for each tree ditch, 0.2 to 0.3 kg potassium fertilizer, and 0.3 to 0.5 phosphate fertilizer. Kilograms buried. This fertilization mainly promotes the growth of roots and shoots, enlarges the leaf area, and rapidly increases the volume of young fruit. Long-term recovery of long-term application of fertilizer in late June to mid-July, you must increase fertilizer. Each application of human excrement 3050 kg, urea 0.2 ~ 0.3 kg mix and ditch pouring, and then cover the soil. At the same time, spraying 0.2%-0.3% potassium dihydrogen phosphate once every 15 to 20 days, for 3 consecutive times, can reduce the occurrence of pests and diseases, and also promote fruit growth and good growth. During the strong fruit period, it is during the period from August to September that fruit is accumulated in a large amount of nutrients. At this time, nitrogen, phosphorus and potassium fertilizers are mainly used in fertilization to promote fruit growth and increase yield and quality. Generally, 0.3 to 0.5 kg of nitrogen fertilizer, 0.2 to 0.3 kg of phosphate fertilizer and 0.3 to 0.4 kg of potassium fertilizer should be planted in each tree, which can promote the metabolism of carbohydrates and increase the sugar and sweetness of fruits. Pear tree thinning and fruit thinning key principles According to the distribution of the branches to determine the evacuation If the average plant per unit load is constant, the specific sparse tree (branch), but also because of the tree (branch) vary, Zhuang stay more, the weak stay less. Full-tree trees and flowers (more than 60% of flower buds) must be replanted. Weak branches and weak order can be completely eliminated in order to leave the empty table next year results, leaving only the Zhuangzhi single fruit, leaving no double fruit. For large and medium-sized fruit varieties, leave 1 fruit every 15 to 20 cm. About 25% of the year-old tree, spend less and stay sparsely, stay less or leave no empty space. Zhuang Zhuangzhi more branches and branches to fruit pressure. Weak trees (branches) leave no fruit. The back of the strong branch results in more stays, and the weaker back results in fewer sticks. According to the auxiliary tip, it is determined that the redundant secondary tip is strong and strong, indicating that it can grow into a large fruit, and when the amount of flowers in the whole tree is insufficient, double fruits can be left; the secondary lobe of the golden mean and the Zhuangtai leave a single fruit; In case of enough quantity, you can stay. According to the order of the flower and fruit, it is determined that the flowering is in a certain inflorescence. The pear is the first to open, followed by the inward. The first to be opened is generally large fruit, easy to grow into large fruit, and the fruit shape is upright. Therefore, you should leave the lacy fruit and remove the rest of the flower or fruit. According to the growth of young fruit, it is determined that the stems are long and thick, the young fruit is long, and the pods are tightly closed and prone to develop into large fruit, so they should be left behind. Sparse fruit that is small and open. The principle of thinning fruit is to stay good or not. First, remove the pests, fruit, fruit, small fruit, rust, and leaves, and if they are still too high, they will be better or worse. Adjust the distribution in the whole tree. For safe fruit thinning, it can be divided into two times and the fruit is set after the first fruit. Fascial Gun Price,Fascial Massage Gun,Beauty Care Massager,Electric Body Massager Ningbo Prestigeplus Commodity Co.,Ltd , https://www.prestigemedics.com
According to the amount of flowers, flowering weather, tree power, fruiting capacity, etc. to determine the number of fruiting and fruiting and fruiting owing to reliance on the storage of nutrients in the tree, the excess fruit as soon as possible to discard, reducing unnecessary consumption; only the entire nutrients Focus on the flowers and fruits that should be left to grow into big fruits. So early sparse sparse than late sparse, sparse buds than sparse flowers, sparse than sparse fruit. But depending on the amount of flowers, flowering weather, tree power, and fruit-bearing power of the year, it was decided that the sparse flowers should be sparse, or the three should cooperate.
Thinning, thinning and fruiting of pear trees
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