First, the role and methods of bagging
1, the role of bagging
(1) Pests and diseases that can harm fruits, such as ringworm disease, anthrax, and scab disease, as well as borers, leaf insects, and pear insects can be avoided.
(2) It can prevent coal stains, rust spots, medicine spots, and scratch spots on contaminated fruit surfaces, making the fruit surface smooth and beautiful.
(3) Can promote fruit coloration.
(4) The fruit spot becomes smaller, smaller, and lighter, which greatly increases the commercial quality of the fruit.
(5) Reducing pesticide residues, preventing bird and pest damage, and improving fruit storage.
The inadequacy of bagging is: more labor, fruit sugar slightly reduced.
2, bagging method
(1) Carefully make fruit thinning before bagging.
(2) Before the bagging, first spray a bactericidal, insecticide, spray fruit, kill the fruit surface bacteria, insects, drug objects mainly for pear yellow mealworms, whiteflies and so on.
(3) Strict selection of fruit when bagging, multiple sets of medium-long and strong branches should be adopted, and disease and insects should be eliminated. Only one fruit per inflorescence should be included.
(4) The order of bagging is first up and down, one tree or one garden or not, and there must be a unified arrangement. There must be no bagging or bagging to reduce the number of fights.
(5) Operation: First open the bag mouth, hold the fruit handle with one hand, and hold the bottom of the bag with one hand. Put the young fruit into the middle of the bag mouth, place the iron wire in the bag mouth, and finally tap the middle of the bag bottom by hand to make the whole bag expand. Drums, young fruit hanging in the bag.
(6) Bagging and picking time: 30 days after flowering; the bag is finished 30 days before harvesting; pears do not need to be bagged and the bag is harvested together.
Second, the technical system adapted to pouch cultivation
1. The variety should be excellent.
2. To build a dwarfed orchard, 80% of bagged cultivation work should be carried out under the tree. Therefore, the new orchard must be built as a dwarf garden, and the old garden can be opened through the pruning method to reduce the tree height.
3, pruning system should be reformed, mainly summer plastic branches, less use of scissors and more rope, while controlling the amount of foliage, dredge the light, and timely fall.
4, to promote artificial pollination, be sure to strictly thinning fruit, control the amount of quality.
5, according to bagging requirements to change the medication system, emphasizing the pre-set prevention and treatment, that is: early spring skin scraping, before winter or before playing budding lime sulfur mixture, heavy after the flowering and bagging before spraying 1-2 times.
6, a reasonable fertilization, control the amount of nitrogen fertilizer, phosphorus, potash fertilizer, mainly to manure, supplemented by chemical fertilizer, organic fertilizer should be 2-3 times the amount of fruit, and after the early fruiting. Water and nitrogen fertilizers are mainly used in the early stage, and phosphorus and potassium fertilizers are added at a later stage. Nitrogen and water control are strictly controlled and fertilizers should be sprayed several times.
7, appropriate late mining, sugar enhanced color.
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