Pear bagging cultivation technology

In Yongchuan, Chongqing, the current pear area reaches 80,000 mu, resulting in an area of ​​more than 50,000 acres and a production of more than 30,000 tons. The fruit-sweeping bagging technology has not yet been widely used, and there are few quality products and low grades. The implementation of the promotion of pear bagging technology is very urgent. The specific technical measures for bagging cultivation are as follows: 1. Selecting famous varieties for bagging and cultivation. The varieties must be selected. The main choices are Fengshui pear, Cuiguan pear, Zhongli No.1, New Century and other high-quality varieties. Second, choose dwarf close planting orchard for bagging cultivation of pear orchards to plant 110-330 of the main orchards, tree height maintained within 2.5 meters. Third, the bagging operation technology points 1, the choice of fruit bag selection of regular manufacturers of special fruit bags, used bags can not be reused the following year. The size and type of fruit bag should be determined according to the variety. Generally, when the fruit matures, the peel is brown. If the single fruit weight is more than 250 grams, a yellow-black single-layer bag should be selected. The size of the fruit bag is 1824 cm, and the fruit ripening effect is Yellow-green or green, with an average fruit weight of 250 grams, should be selected yellow-black double bagging or gray-black double bag, the size of the bag is 1824 cm. 2. Before bagging the fruit, carefully remove the fruit according to the load requirements before bagging. In order to ensure one set and one guarantee, they all grow into a perfect commercial fruit, and must be in accordance with the age, vigor, and fertilizer level of the garden. , The amount of fruit must be kept. The amount of fruit remaining is generally calculated according to the ratio of leaf to fruit 25-30:1. The distance of fruit is about 20 centimeters, so that the fruit is evenly distributed on the tree. 3, bagging time Pear 20 days after the Xiehua, young fruit such as the size of the thumb to complete the fruit bagging, 10 days or so to end, bagging too late, the fruit has been corked, the effect greatly reduced. 4、Before the bagging insecticidal bactericidal bagging must be sprayed insecticidal bactericidal mixed drugs 1-2 times, focus on the fruit spray surface, spraying the rain or spraying within 10 days after the bagging has not been completed, and the rest Part of the drug should be sprayed once again. The drug subject is mainly for pear scab, ring rot disease and pear hibiscus, tenebrio, etc. The available bactericides are: Xiansheng 600 times or Dasheng M-45800 times; Insecticides are: Green Crystal 500 times or enemy killed 800 times or indole insect 1000 times. 5, bagging order and requirements of the first set of fruit in the upper part of the tree, set the fruit in the lower part of the tree, the upper and lower left and right inside and outside evenly distributed. In terms of a garden or a tree, it is necessary to set all the trees to cover all the trees. 6, bagging operation method First hand into the bag to make the whole bag bulge, and then grasp the handle in one hand, holding the bottom of the bag, put the young fruit into the bag mouth, and then the bag mouth from the two sides to the middle handle Squeeze; when all the bags folded to the handle, the last wire card reversed 90 degrees, winding around the stalk or fruit branch, pay attention to the bag must be sealed, but do not tie too much Use force to prevent damage to the young fruit growth. After the cover is finished, hold up the middle of the bottom of the bag with your hands, so that the whole bag swells. The outlet holes of the two bottom corners open, and the young fruit is suspended in the bag and is not attached to the bag wall. 7. Bagging operation precautions Causal bags should be coated with pesticides and waxes. Wash hands after handling to prevent poisoning. When harvesting, it will be picked into the basket together with the fruit bag, and the bag will be removed when it is packed. It can prevent fruit bumps, keep the fruit surface clean, and reduce water loss.