Core Tip: Sweet cherries have been successfully planted in Aba Prefecture and Hanyuan in recent years. The market prospects are promising and large-scale cultivation has begun. In order to make it premature and productive, special summer and autumn management suggestions were made for the reference of farmers and farmers.
Sweet cherries have been successfully planted in Aba Prefecture and Hanyuan in recent years. The market prospects are promising and large-scale cultivation has begun. In order to make it premature and productive, special summer and autumn management suggestions were made for the reference of farmers and farmers.
First, make summer trim work. Topping, cutting tip. Topping is the removal of the young part of the tip before it is still lignified, and the picking time is from April to August. Sowing of the saplings can promote more shoots, reduce the position of shoots, expand the canopy, reduce ineffective growth, and promote flower bud formation. Focusing on mild, moderate and severe topping, mild topping refers to removing the top 5 centimeters or so, in order to delay growth and cultivating the resulting branches; moderate topping is generally to grow the main branch up to 50 centimeters and leave 40 centimeters to pick up the heart. When each lateral branch grows to 30 centimeters or more, leave 20 centimeters to pick up the heart, and when the center grows to 70-80 centimeters, leave 60-70 centimeters to pick up the heart and trigger more branches; the heavy topping is when the branches grow to more than 40 centimeters, leaving 15 Around centimeters to pick up the heart, to cultivate small branches of fruit. When the picking site has been semi-lignified, it needs to be trimmed with a scissor, which is called cutting tip, and the cutting tip has a stronger effect than the pinching.
Pull branches open angle. Sweet cherry can be pulled throughout the growing season, but it is best in August. The branches are not easy to crack. When the branches are pulled, they are tied with 1/3-1/2 branches with wire or iron wire. Use cardboard, cloth, waste rubber hose. The mat is placed at the point of force so as to prevent damage to the cortex. Before the branch is pulled, the base of the branch may be shaken by hand to soften it and then pull or raise the position of the branch so that the waist angle can be increased, and the main branches generally need to be opened. Angle to the base angle of 60 degrees, waist angle 70-90 degrees, pull the branch open angle when adjusting the main branch in the space of the crown, so that the main branch evenly distributed on the back of the branch to 90 degrees.
Second, autumn basal fertilizer. Mainly farmyard manure, 3500-5000 kilograms per mu, can be mixed with appropriate amount of compound fertilizer or trace elements missing in orchards. In the period of September-October each year, deeper turning points are used for combination, the sooner the better, the young trees will be 10-60 kg per plant, resulting in 60-90 kg per tree.
Third, pest control. In the middle and middle months of June, after harvesting the fruits, they took measures to prevent and control the red-necked longhorned cattle (white trunk coating), scale insects (40% chlorhexidine-containing 1500 times liquid), and red spiders (2000-3000 times of Nisolut); 6 From the end of August to August, the same amount of Bordeaux mixture and bactericide were used to control leaf disease alternately; attention was paid to the observation of Syringa moth (3000-fold solution of cypermethrin) and naval caterpillar (20% of extermination 1000-fold dilution). The occurrence of insect pests such as Pyrosphaeridae (2000 times of kiev chrysanthemum) is subject to artificial control or drug control based on the hazards; during the period from September to October, the new shoots grow slowly, and attention is paid to the prevention and treatment of early deciduous disease (800 times solution of mancozeb Zinc).
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