1. Selection of paper bag type
The selection of peach bagging paper bags should be reasonably determined according to the growth of trees in the garden, production objectives and economic capacity.
The selection test shows that the special bags for peaches such as Jiatian bag and Kaixiang bag have good effects.
2. Bagging period
Peach is bagged within 30 days after flowering; The bagging time should be between 9:00- 1 1:00 on sunny days.
2: 00-6: 00 pm is appropriate.
3, bagging operation technology
Before bagging, put the whole bundle of fruit bags in a damp place to make them moist and elastic; Be careful after selecting young fruits.
Remove impurities such as petals attached to young fruits, hold the paper bag with your left hand and open the bag mouth with your right hand.
Or blow the bag mouth to expand the bag, open the ventilation and drainage holes at the two corners of the bag bottom, and hold the bag mouth with your hands.
2-3 cm below, the bag mouth is up or down, the fruit is put in the bag, and the fruit is put in the bag with the consequence handle.
Open the base (don't put leaves and branches in the bag), and then press "folding fan" from both sides of the bag mouth in turn.
"Fold the mouth of the bag in half at the incision, tie the thread tightly at the fold and connect it above the mouth.
Tearing at the joint will turn the binding line back to 90 degrees and rotate 1 time along the bag mouth, so that the young fruit will be in the bag body.
The center is suspended in the bag to prevent the bag from rubbing the surface of the fruit. Don't wrap the binding thread around the fruit handle. set up
When bagging, the direction of force should always be upward, don't break the young fruit, use light force and try not to touch the young fruit.
The mouth of the bag should also be tied tightly to prevent pests from climbing into the bag and harming the fruit, and to prevent the paper bag from being blown off by the wind. Besides,
There should be fewer sets of naked fruits on the upper part of the crown and the back of the main branches to avoid sun injury. Bagging sequence
First up, then down, first inside, then outside. The average number of bags per 667m2 is about 6500.
4. Time and method of picking up bags
According to different kinds and varieties of bags, the time of picking bags varies greatly. The picking time of peaches is double-layer picking.
Before 15-20 days, the single bag is torn apart except the bag, and the whole bag is removed 7- 10 days before mining. A day is fine.
The suitable time for unpacking is 9- 1 1 in the morning and around 3-5 in the afternoon. In the morning, except for the paper bag in the south, be sure to
Avoid noon when the sun is strongest, so as not to burn the fruit by the sun. You can't pick your bag too early or too late.
To achieve the expected effect of bagging, the bag is picked too early, the color of the fruit surface is dark and the smoothness is poor; Too late to unpack, fruit noodles.
Light color, easy to fade when stored. When taking off the double bag, tear the outer bag along the tangent of the bag and wait for 5-7 days.
Removing the inner bag; When removing the single-layer bag, open the bottom of the bag for ventilation or tear the paper bag into long strips, and then remove it in a few days.
Put it down.
Second, orchard management after bagging
1, fertilizer and water management
The management of fertilizer and water and leaf protection should be strengthened in bagging peach garden to keep the tree vigorous and meet the needs of fruit growth.
Long-term needs. Because the calcium content in bagged fruit is reduced, it is easy to suffer from bitter pox.
Spraying calcium amino acid or amino acid compound micro-fertilizer 300-500 times a month, a total of 1 time. Late June, 40 days before harvest
Spraying 500× 10-6 rare earth 1 time every day for 20 days, or spraying photosynthetic particles in June, July and 1 month before harvesting.
Micro-fertilizers such as fertilizer and farmer king can improve the soluble solid content of bagged fruit. During the fruit expansion period, bagging and picking.
Water 1 time before bagging to meet the water demand of bagged fruits and prevent sunburn.
2, pest control
In addition to the normal pest control in the orchard throughout the year, fungicides and mildewproof agents 1 should be sprayed on the whole orchard 0-2 days before bagging.
Insecticide, in order to effectively control fruit rot, cotton bollworm, aphid mites and other pests and diseases. Drugs include
Spray 600 times, 70% thiophanate methyl 800 times, Polaroid 1500 times, Mianshen 1 times, high-permeability insecticidal net.
Wait a minute. Don't mix organophosphorus and bordeaux mixture to prevent fruit from rusting. Fruit bags should be sprayed as usual during the endogenous period.
Sprinkle fungicides with the function of protecting leaves and fruits to prevent bacteria from entering the bag with rainwater. After removing the bag
Spraying 1 spraying (600 times), thiophanate-methyl (25%, 800 times) and other systemic fungicide control fruits.
Fruit rot caused by latent bacteria in the fruit, and at the same time, spraying 1-2 times of medicinal fertilizer with coloring effect, such as 300.
Potassium dihydrogen phosphate, 800 times that of Shikanglu, Nongjiawang, etc. , in order to increase color and prevent diseases. After harvesting, it will be used for
Used waste paper bags should be burned in time to eliminate the source of pests and diseases lurking on the bags, so as to reduce the harm in the coming year.
.
Step 3 collect bagged fruits
In order to improve the high-quality fruit rate of bagged fruits and produce more high-grade high-quality fruits, it is necessary to track the appearance of fruits.
Color conditions are suitable for batch harvesting. In the suitable harvest period, the later the harvest, the better the coloring and the better the quality.
It's good. Because the skin of bagged fruit is thin and tender, collision, squeezing and stabbing should be minimized during harvesting and handling.
Scratch.