Summer is a crucial period for promoting flower bud differentiation and fruit enlargement in fruit trees. Regardless of whether it is a big year or a small year, if the management of fruit trees is not in place, it will affect the production and quality of apples and the formation of flower buds in the following year. Therefore, timely and reasonable summer management of fruit trees is very important.
First, strengthen fertilizer and water management
Before the spring shoots are stopped, the nutrients required for the flowering, fruit setting, fruiting branches, and long leaves of the fruit trees are generally derived from the fruit trees that were produced and stored during the period from the autumn of last year to the root activity of the year. After entering June, the spring shoots were stopped and the secondary growth peak of the root system appeared. At this time, top dressing was generally called flower bud differentiation. If we can promptly and reasonably apply the quick-effect and sustainable fertilizer, it will have obvious effects on improving the output of the year and promoting flower bud differentiation. From the end of May to the beginning of June, the top-dressing of fruit trees in the period of occurrence of new roots should take into account the number of fruits and the strength of tree vigor in the year. The content of N, P, and K should be adjusted reasonably to avoid causing problems such as the madness of Mong Kok and the difficulty of fruit coloring. For the lack of trace elements, foliar spray fertilizer can also be used. Before and after top dressing, the amount of water in the soil is also important. During flowering and flower bud differentiation, sufficient water is conducive to fruit cell division and fruit enlargement, which can reduce physiological fruit drop and promote leaf, shoot growth and flower bud differentiation. If the drought is not rainy and it cannot be watered in time, its yield, quality and flower bud formation will be greatly affected.
Second, create conditions for flower bud differentiation and fruit enlargement
1. Abundant fertilizers are the main source of plant cell formation. The amount of cells and the number of cells that divide continuously is the premise of apple growth and flower bud formation. In the soon-to-be capped and capped shoots, their cells have been constantly split. In the meantime, the accumulation of nutrients is the key to flower bud formation and differentiation.
2, enhance light, improve photosynthetic ability. The tree transformation we advocate is to enhance the photosynthetic capacity of fruit trees so that they can obtain more photosynthetic products. When the strong root system absorbs enough fertilizer and water, it reaches the leaves, and the leaves synthesize protein, starch, amino acids and other nutrients in the light, and turn into fruit, flower buds, including various nutrients needed for leaves, branches, roots, etc. . In the fruits and flower buds, the greater the concentration of cells, the more the division, the more conducive to fruit enlargement and flower bud differentiation and formation.
3, reasonable summer cut, can enhance the fruit's ventilation and light. In order to strengthen the photosynthetic capacity and produce rich and abundant nutrition, it is necessary to continue summer cuts on the basis of pruning in winter. For example, if the fruit shoots and the shoots are tipped to a depth of 15-16 centimeters, they can reduce their strength and promote fruit setting and growth. The lateral branches on the lateral branches can be left with 4-5 base leaves, leaving the shoots free and promoting the growth of short and middle branches, depending on the amount of space left. The remaining branches can also be twisted, twisted and leveled. The back branches left on the main branch generally do not need to retain long fruit branches, so as not to make the back branches bolder and longer to compete for nutrients, affecting the light of other short and medium branches. For two-year-old or light-branched legs, we must scientifically cut or circumcision at the strong and weak borders to promote the emergence of leafy clumps in the lower part of the bald area so as to lay the foundation for the formation of good short- and mid-length branches. In addition, some Qiaohua Fuji trees, which are difficult to grow into fruit after transformation, can be scientifically circumcised or girdled to promote flowering; while those with weak tree vigor or medium dormancy have been moderately fruit-bearing, with medium and short branches, Capped trees in time will not need to be girdled to avoid debilitating, rot or death.
4, spraying leaf fertilizer and conditioner. Spraying foliar fertilizers and conditioners can control the growth of shoots, allowing the weak shoots, short and middle fruit branches and growing fruit to get more nutrients. The lover in the conditioner and the effect of Wan Shuai No. 1 are all very good and can be used interchangeably. In addition to the easily absorbed ionic state of Kangpei 2, the effects of wolfberry blood, longevity, and Tianrun No. 1 are all good, and they work in concert with regulators to ensure fruit growth and avoid fruit tree size. Formation.
First, strengthen fertilizer and water management
Before the spring shoots are stopped, the nutrients required for the flowering, fruit setting, fruiting branches, and long leaves of the fruit trees are generally derived from the fruit trees that were produced and stored during the period from the autumn of last year to the root activity of the year. After entering June, the spring shoots were stopped and the secondary growth peak of the root system appeared. At this time, top dressing was generally called flower bud differentiation. If we can promptly and reasonably apply the quick-effect and sustainable fertilizer, it will have obvious effects on improving the output of the year and promoting flower bud differentiation. From the end of May to the beginning of June, the top-dressing of fruit trees in the period of occurrence of new roots should take into account the number of fruits and the strength of tree vigor in the year. The content of N, P, and K should be adjusted reasonably to avoid causing problems such as the madness of Mong Kok and the difficulty of fruit coloring. For the lack of trace elements, foliar spray fertilizer can also be used. Before and after top dressing, the amount of water in the soil is also important. During flowering and flower bud differentiation, sufficient water is conducive to fruit cell division and fruit enlargement, which can reduce physiological fruit drop and promote leaf, shoot growth and flower bud differentiation. If the drought is not rainy and it cannot be watered in time, its yield, quality and flower bud formation will be greatly affected.
Second, create conditions for flower bud differentiation and fruit enlargement
1. Abundant fertilizers are the main source of plant cell formation. The amount of cells and the number of cells that divide continuously is the premise of apple growth and flower bud formation. In the soon-to-be capped and capped shoots, their cells have been constantly split. In the meantime, the accumulation of nutrients is the key to flower bud formation and differentiation.
2, enhance light, improve photosynthetic ability. The tree transformation we advocate is to enhance the photosynthetic capacity of fruit trees so that they can obtain more photosynthetic products. When the strong root system absorbs enough fertilizer and water, it reaches the leaves, and the leaves synthesize protein, starch, amino acids and other nutrients in the light, and turn into fruit, flower buds, including various nutrients needed for leaves, branches, roots, etc. . In the fruits and flower buds, the greater the concentration of cells, the more the division, the more conducive to fruit enlargement and flower bud differentiation and formation.
3, reasonable summer cut, can enhance the fruit's ventilation and light. In order to strengthen the photosynthetic capacity and produce rich and abundant nutrition, it is necessary to continue summer cuts on the basis of pruning in winter. For example, if the fruit shoots and the shoots are tipped to a depth of 15-16 centimeters, they can reduce their strength and promote fruit setting and growth. The lateral branches on the lateral branches can be left with 4-5 base leaves, leaving the shoots free and promoting the growth of short and middle branches, depending on the amount of space left. The remaining branches can also be twisted, twisted and leveled. The back branches left on the main branch generally do not need to retain long fruit branches, so as not to make the back branches bolder and longer to compete for nutrients, affecting the light of other short and medium branches. For two-year-old or light-branched legs, we must scientifically cut or circumcision at the strong and weak borders to promote the emergence of leafy clumps in the lower part of the bald area so as to lay the foundation for the formation of good short- and mid-length branches. In addition, some Qiaohua Fuji trees, which are difficult to grow into fruit after transformation, can be scientifically circumcised or girdled to promote flowering; while those with weak tree vigor or medium dormancy have been moderately fruit-bearing, with medium and short branches, Capped trees in time will not need to be girdled to avoid debilitating, rot or death.
4, spraying leaf fertilizer and conditioner. Spraying foliar fertilizers and conditioners can control the growth of shoots, allowing the weak shoots, short and middle fruit branches and growing fruit to get more nutrients. The lover in the conditioner and the effect of Wan Shuai No. 1 are all very good and can be used interchangeably. In addition to the easily absorbed ionic state of Kangpei 2, the effects of wolfberry blood, longevity, and Tianrun No. 1 are all good, and they work in concert with regulators to ensure fruit growth and avoid fruit tree size. Formation.
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