In what climate should western cherries be cultivated?
Western cherry (also known as big cherry) has not been introduced into China for only one hundred years. Cultivation is concentrated in the provinces along the coast of Bohai Bay, among which Shandong Province is the most. In recent years, many places have also been introduced and cultivated. However, they all showed vigorous tree growth, long branches, few flower buds, serious falling flowers and fruits, and little or no fruit. Show no economic cultivation value, the main reasons: 1. Big cherry requires a cool and dry climate, which requires a long time of sunshine and a high percentage of sunshine. The sunshine time required for a year is 2600-2800 hours, and the percentage of sunshine is 577.64%. It is not suitable for warm and humid climate, high temperature, more Rain Water and short sunshine time. Such an environment is bound to have a great impact on the flower bud differentiation, flowering and fruiting of big cherry. As a result, there is only a long tip but no result. 2. Big cherry is a kind of tree species which requires long hours of low temperature when it is dormant in winter. When the temperature is lower than 7.2 ℃ in winter, it takes 2272 hours from 2007 to 2272 hours before the natural dormancy can be successfully completed. Otherwise, the flower bud is dysplastic, the flower organ is incomplete, the sprouting is slow, the flower drop is serious, or the flower bud is dead and shedding in the following year. And the climate of our province, some years of winter, there will be a warm winter, it is difficult to meet the demand for low temperature of big cherries, it will have a certain impact on flowering and fruiting. This is also one of the reasons for the low seed setting rate or poor fruit setting rate. Therefore, in order to cultivate big cherry in our province, it is necessary to start with introduction and choose the ecological environment suitable for big cherry. Do not develop blindly.
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Key points for summer shearing of cherry trees
In order to promote flower bud differentiation and prevent excessive vegetative growth, new shoot coring should be controlled. That is, to pick the coring of the new shoots that have not stopped growing, the position of the coring usually takes the half-leaf as the boundary; after the coring stops for 10-15 days, the second shoot will be sent out, and the second coring will be carried out when it grows to 15-20 cm.
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Early, high-yield and efficient cultivation of sweet cherry
1. According to the characteristics of drought tolerance, non-waterlogging resistance, cold resistance, salt-alkali resistance and shallow root system of sweet cherry, sweet cherry orchard should be located in loam or sandy loam with deep soil layer, loose soil, low groundwater level, no stagnant water, good drainage and irrigation conditions and not easy to suffer wind damage. When the water table is high and soil.
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