How to solve the red Fuji apple tree size problem
In the past few years, due to market reasons, the price of fruit fell, and some fruit growers were neglecting the management of fruit trees. They always wanted low investment and high returns. When the fruit is hung on the tree, it will be watered and fertilized. Without fruit, it will not be watered or fertilized, causing the tree to appear large and small. How to solve the problem of annual size of Red Fuji apple trees requires comprehensive management measures. Specifically, it is necessary to grasp the following five links.
One, pruning is the key. Red Fuji apple trees are sensitive to pruning, so pruning is the key to solving the problem of size. Pruning should solve the problems of tree shape, branch weight, leaf ratio, and illumination. It is necessary to make rational use of the new-born bar and constantly update the hanging fruit branch. In the actual production, the commonly used pruning method is: first consider the spatial distribution of the tree skeleton, branches, and air and light transmission problems, and then use the pull branches to droop, suppress the top to promote Meng, Wang branches carved buds, multi-loop cut, through the four seasons Pruning, stabilizing tree vigor and laying the foundation for flower bud formation. Practice has proved that the more short branches, the more mature the conditions for flowering, that is, the more growth points, the more opportunities for flowering.
Second, water and fertilizer-based. A crop of flowers, relying solely on fertilizers. For fruit trees, it grows in one place for a long time. It requires both growth and results. The growth and the results of the first time rely on the roots to absorb nutrients from the ground, and the second depends on the leaves to synthesize organic nutrients through sunlight. Underground nutrients cannot be used indefinitely. Because of the long-term absorption of roots of fruit trees, there will be fewer and fewer. At present, most orchards have caused a deficit in soil nutrients, and the maintenance of tree growth and results cannot be guaranteed. Therefore, the application of N, P, and K fertilizers singly or excessively, without the application of scientific formula fertilization, will inevitably come into being. Experts pointed out that in March, June and September, fertilization should be based on the growth habits of fruit trees. In particular, organic fertilizers should be used mainly in September. With biological and inorganic compound fertilizers, investment in water and fertilizer accounts for 60% of the investment in orchards. The fruit trees are strong but not prosperous, have strong disease resistance and stable tree vigor, which lays the foundation for the formation of quality flower buds and fruit growth throughout the year.
Third, prevention and control are guarantees. The tree relies on long leaves, leaves fruits and leaves, and flower bud differentiation can not be separated from leaf care. Trees do not have normal physiological nutrient distribution without leaves. Therefore, pests and diseases in orchards must be prevented and combined with prevention and treatment in order to ensure the ratio of fruit branches, stems, leaves, and fruits. Fruit trees can grow normally and the fruits can develop normally. In recent years, pests and diseases have often caused large amounts of fallen leaves ahead of the fruit trees, chasing their root causes. One of the important reasons is the confusion in the agricultural resources market, the purchase of fake pesticides, and the prevention of diseases and insect pests, so that the fruit trees fall ahead of time.
Fourth, a reasonable load is the starting point. The flowering of apple trees consumes more than 70% of the storage nutrients. In the sparse flowering problem, budding must be advanced to save nutrients and effectively reduce the burden of nutrients needed for flowering peaks of fruit trees. The fruit shrubs highlight a slogan. The specific method is to make Wangshu more fruit, and the weaker ones to keep fruits, in order to prefer two hundred fifty-one (two 80# fruit one pound), not three three nine (three 70# fruit Nine and two weights, this measure can reduce competition for photosynthetic products and nutrients, improve the quality of fruit left in the tree, achieve tree balance, and maintain stable quality. With low labor input, low costs, high output, and high value, this will save nutrition and space, and it will be a tree fruit in the coming year.
Fifth, planting grass in orchards is an aid. Orchard cultivation can adjust the microclimate of the orchard to the best of old rapeseed, rough roots of old rapeseed, rapid decoction of leaves, quick increase of organic matter, not only soil loosening, but also water conservation, but also conducive to the prevention and control of pests and diseases, as pests and diseases Natural enemies have created a good environment for survival and reproduction, and they can exert natural control over pests. In the summer, the orchard of long grass is 3°C-5°C lower than that of the cultivating garden, and the humidity is increased by 1-2 times. The long grass garden adjusts and lengthens the temperature and humidity time required for flower bud differentiation in the orchard, and has an auxiliary effect on flower bud formation. .
In addition, attention should also be paid to the girdling and circumcision of Wangshu and the application of techniques such as artificial pollination or pollination by wall-bearing bees. The annual size of the Red Fuji apple tree will not appear.
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