Increasing the fruit setting rate is the most important part in the process of planting fruit trees, and the cultivation of cherry trees is no exception. So how can cherry trees improve fruit setting? Here are some ways to improve the fruit setting rate of cherries.
I. Timely watering
Large cherries are highly dependent on water and are neither resistant to drought nor waterlogged. In order to ensure its normal growth, on the basis of watering 4 times before flowering, after flowering, before harvesting, and before freezing, it is important to water the key water 10-15 days after flowering. It is advisable to keep the soil water holding capacity at 60% -70%.
Improving the orchard
Microclimate In order to avoid or reduce the damage caused by the high temperature weather before and after the flowering of the big cherry to its flowering and fruit setting, it is necessary to build a windbreak belt when selecting the site for the garden. Pay attention to the local weather forecast, and actively take corresponding measures before and after the high temperature. You can support the shade net 30-50 cm above the tree crown before flowering, and water the flower after flowering to promote normal flowering and fruit setting.
Top dressing before flowering
Fertilization should be done early before flowering, and immediately after thawing the soil to promote flowering and fruit setting. The flower bud differentiation period is about 1 month after harvesting, and fertilizer should be applied immediately, which can increase the flowering rate by 33.6%. At the same time, supplement the trace elements such as calcium and boron in an appropriate amount.
Fourth, control the tree
It is necessary to get out of the weird circle of relying on regulators to control tree vigor. On the one hand, it is necessary to reduce the content of nitrogen in the soil, rationally use phosphorus and potassium fertilizers, and trace elements to control the growth from the source. On the other hand, immediately after the fruit is harvested, the canopy in the dense area of ​​the canopy is dredged, and the useful branches are opened and angled and lightly cut to ease the growth and early flowering.
V. Decisive treatment
Virus tree The occurrence and spread of the virus tree is a major obstacle affecting the cherry fruit, and once found, it must be dealt with in a timely manner. The entire diseased person must be shaved off and the root system in the tree hole must be thoroughly cleaned up. The localized diseased branches must be completely removed, and they must not be changed or pollinated.
Six, reasonable mix
Almost all large cherries pollinated appear to be self-flowering. Many cultivars are out-of-breeding and incompatible. Therefore, when cultivating large cherries, it is necessary to select more than two pollination varieties that are close to the flowering period of the main planting variety, and have good genes, yield and quality, and the proportion must be about 30%.
Seven, science pruning
The cherries of the large cherry are soft, thick in ducts, and easily cut off at the cut. Therefore, one of its pruning is to grasp the critical period: the bud tops turn green for pruning; 10-15 days after flowering and about 10 days after harvest for pruning. Trimming in these two periods makes the wound less or less fluidy. The second is to pay attention to methods: according to the big cherry habits, you need to use scissors and do more hands, mainly in summer scissors, supplemented by winter scissors. Timely topping, twisting, pulling branches on the back to stabilize the tree vigor and early flowering.
The above is the introduction of methods to improve the fruit setting rate of cherries. Friends who grow cherries can refer to the above methods to improve the fruit setting rate and plant reasonably.
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