1 Soil and Water Management
1) Orchard grows grass. White clover is planted one or two times a year; natural grass can also be produced, that is, weeds are not scooped on the weeds in the garden, no herbicides are sprayed, and the grass height is controlled not to exceed 20 cm.
2) Top dressing. Xiehua fertilizer as soon as possible after the early, each production of 5kg fruit application of potassium sulfate compound fertilizer 1kg, watering after fertilization. After harvesting, apply about 4kg of bio-organic fertilizer per 50kg of fruit and apply water after fertilization.
3) Watering. The big cherry tree is neither drought nor impatient. In addition to watering with fertilization, it is also necessary to pour germinated water and frozen water, and to maintain soil moisture before maturity, and to perform irrigation and drainage according to rainfall during the rainy season, in particular to prevent water accumulation in the rainy season.
2 Flower and Fruit Management
In March, combined with pruning to remove some weak flower buds. Flower pollination, stocking wall bees, bumblebees or bees combined with artificial pollination. As soon as possible after fruit set, topdressing and watering. Remove the deformed fruit as soon as possible after fruit set.
3 Pest control
After Xiehua spray thiophanate-methyl 1000 times + imidacloprid or puppet 1000 times liquid, sprayed with streptomycin 1000 times agricultural streak about 10d. After harvesting, carbendazim 500 times solution + diflubenzuron 1500 times. In the middle and early June, Bordeaux fluid is sprayed in multiple times. About 20d sprayed carbendazim + diflubenzuron 3 1000 times.
4 trim
1) Pull the branch open angle. In June, the branch opening angle was generally carried out. At this time, the response of the cherry tree body was relatively stable. The back was not easy to be stripped, and the angle between the main branch and the lateral branches was 80. It is advisable that other branches can be drawn to 80-90O.
2) Topping and short cuts. For vigorously growing trees, trunks were topping at 50cm and 10cm removed. When the main branch is 40 cm long, 10 cm is removed (leaves are left), and 10 cm of the upright branch that grows after picking the heart is picked up again. From late May to early June, three large leaves are removed from the bases of erect or overly strong lateral branches, and individual robust shoots can be shortened twice in a row.
3) Thinning and retraction. Drying in summer is generally conducted from late May to early June. The purpose is to remove overlapping, upright, dense, and strong perennial branchlets that severely affect the light, in order to improve the canopy. The ventilation and light transmission conditions balance the vigor of the tree, making it easy to heal wounds and reduce the weakening of tree vigor. For a perennial branch that only affects local lighting conditions but has a certain degree of ability, it can be reduced to the weak branches.
4) Twist and take a branch. From late May to early June, shoots were made when the shoots were not yet lignified. Standing branches, competing branches and inward temporary branches were gently twisted 180° from the base of the shoots around 5 cm, which was conducive to the formation of flower buds. In the middle and late July, the first-year branches in the upper part of the canopy were continuously softened for 2 or 3 times, opening the angle, weakening the apical dominance, and weakening the growth potential to facilitate the formation of flower buds.
5) In addition to budding and girdling. In early summer, the budding shoots, leggy shoots, or useless buds and sprouts are removed in time. At the same time, large cherry trees can be girdled to promote the formation of flower buds, improve fruit set and fruit quality. After girdling of large cherry trees, the wounds healed slowly. The girdling width should not exceed 0.5 cm. Because of the different tree vigor, especially the big cherry trees with less organic fertilizer, the flow phenomenon is prone to occur. Therefore, caution should be exercised in production. Ringing. In order to promote flowering, it is necessary to pick up the heart in a timely manner in the summer and leave 5 to 6 leaves topping when the new shoot grows to about 10cm.
Combine sprays after harvest and spray 200 times PBO twice for 15d on strong tree vigor.
5 cracking fruit
Before harvesting, due to watering, rainfall, etc., the pulpy cells rapidly expand and the various physiological activities are accelerated, but the physiological activities of the peel cells are relatively slow. When the fruit's turgor pressure increases beyond the pressure that the peel and pulp cell walls can withstand, It will cause cracking. Because the cracking of large cherry before harvest is often closely related to calcium deficiency, calcium supplementation is an important measure to prevent cracking of large cherry before harvest. Calcium supplementation method: From the 14th day after anthesis, spraying calcium carbonate 300-500 times once every 10 days, calcium hydroxide 150 times liquid and calcium chloride 100 times liquid, spraying 2 or 3 times, can significantly reduce cracking .
6 harvest
The harvest period is determined according to the fruit maturity, use, and market demand. Incompatible varieties should be harvested in stages.
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