Select high-quality fruit bags Qualified paper bags should have a good degree of shading, after the wind and rain is not easy to deformation, no damage, no wax, easy to dry after the rain, the adverse effects on pear fruit is minimal. The specifications of a general paper bag are: 14 to 16 cm wide, 18 to 19 cm long, and half of a round notch in the middle of the bag mouth. This facilitates the opening of the paper bag. Vent holes are provided on both sides of the bottom of the bag mouth to facilitate the outflow of rainwater to prevent water accumulation in the bag. For different pear varieties, different paper, paper layers, and colors should be selected.
Doing a good job of preventing and controlling pests and diseases before bagging is a key technology for the success of bagging. First of all, through the winter and spring garden, cut pests and branches, deep-turning tree tray, pouring frozen water and other measures to reduce the source of overwintering diseases and pests; Second, in the growing season by cutting off the diseased, diseased leaves and diseased fruit, to control re-infection Finally, 5 Baumeidu lime sulfur sprays are applied during the flower bud expansion period. When the petals fall off 60% in the late flowering stage, 5% avermectin 5000 times solution and 40% Fuxing 4000 times solution are sprayed to prevent and cure pear hibiscus and black Point illness, scab, black spot and so on.
Timely bagging should be carried out 15 to 45 days after flowering, before fruiting rust occurs after fruit thinning. For some rust-prone varieties, in order to reduce the occurrence of rust, add a small fruit bagging in the young fruit period. Generally, fruit thinning can be started when the fruit shape can be discerned. After the number of fruits is determined, it can be set. The pouch, the latest set of pouches should be completed 20 days after the thank you, otherwise it loses its meaning. About 20 days after pouching, large bags should be added. The temperature should be high and there should be no windy weather in hot sun. The bagging time should be earlier. Otherwise, the temperature inside the bag may be too high, which may cause discoloration and even sunburn or cracking of the peel. The temperature is low and often there are Breather weather or colder areas with higher altitudes can be delayed appropriately. In areas with high altitude, large temperature difference between day and night, and low rainfall, the effect of bagging twice is good.
The bagging sequence first sets the upper fruit, then sets the lower fruit, first sets the inner fruit, and then sets the outer fruit. Put the hand into the bag when bagging, make the bag go up, hold the bottom of the bag, make the vent holes for the two corners open, hold the bag under the mouth 2 to 3 centimeters, put on the fruit, from the middle to the two Side of the bag is folded in turn and then tied with a paper bag with a wire of 2.5 cm below the mouth of the bag. The fruit bag should be bundled in the upper part of the fruit shank near the fruit table. Never tie the bag mouth into a trumpet when tying the mouth so as not to accumulate liquid medicine into the bag and cause phytotoxicity.
Natural Plant Extract is a kind of solid powder obtained by cleaning, extracting, concentrating and spray drying Chinese herbal fruits and vegetables, without adding any other ingredients; The effective components and essence of plants are extracted, which improves the full utilization rate of plants and is beneficial to human absorption.
The components of plant extracts can be divided into glycosides, acids, polyphenols, polysaccharides, terpenoids, flavonoids, alkaloids and so on. For example, the main component of green tea extract is tea polyphenols. Ginseng extract mainly contains a variety of ginseng monomer saponins; According to different characters, it can be divided into extract, powder, lens, etc., such as violet leaf extract, hang white chrysanthemum extract.
Natural Plant Extract,Paeony Extract,Licorice Root Extract,Dong Quai Root Extract
Fufeng Sinuote Biotechnology Co.,Ltd. , https://www.sntbiology.com