Kiwi bagging measures

Editor's Note: Fruit bagging can effectively reduce cracking and mechanical damage, improve the color of the fruit surface, greatly improve the commercial quality of the fruit, can also prevent pests and diseases, reduce the amount of pesticides, and reduce pesticide residues. To help farmers' friends master this technology, we specially invite related experts to introduce the bagging technology of fruits such as peach, kiwi, citrus, pear and grape. In this issue we will introduce kiwi and peach bagging technology.

Kiwi bagging technical measures include: selection of bags, fruit thinning, fruit setting, spraying, fruit set, protection, and bag removal.

The choice of paper bag is a single-layer, beige, thin, waxy wood pulp paper bag, 15-18 cm long, 11-13 cm wide, open seam in the middle, iron wire on one side, and 2 to 4 cm on the lower corner, waterproof paper bag. Good ventilation and good toughness.

The thinning of the kiwi fruit in the dormant short shoots was used to maintain the fruiting branches, leaving 3 to 4 fruit pieces in each fruiting branch and removing excess fruits. The kiwi fruit pruned with long shoots was used to remove the fruits on the branches with weaker results at the base of the mother twigs. The remaining fruits were left with 2 or 3 fruits. As a result, the middle part of the mother branch can not be used to draw the resulting branch, and 3 to 4 fruits can be left on the sparse result branch. If the tree is weak or injured, the mother branch should be left with little or no fruit. Timely sparse pests and fruit, malformed fruit, worn fruit and malnutrition. When the fruit is thinned, the first is the inner and outer, the first is the weak branch and the later is the strong branch. The young orchard trees are strong or weak according to the results. Each result mother tree leaves 2 to 3 result branches, and each result branch leaves 2 to 3 fruits.

Spraying Control Before spraying the fruit, the whole garden sprayed an insecticidal bactericide, which can spray 20% of the sweeping 2500 times liquid, 18% of the front kill 2000 times, or 2000 times of the green time, thiophanate-methyl or multi-bacteria Ling and other broad-spectrum fungicides, control beetles, small salamanders, cockroaches, scale insects and other pests, control fruit soft rot, gray mold and other diseases. It is forbidden to use highly toxic and high residue pesticides and to control the use of plant growth regulators.

Bagging time The kiwifruit had the fastest fruit growth after 40 days of flowering, and the bagging time was appropriate around the end of June. However, it must be selected after spraying. When the sun is exposed in one day, it can be in the morning from 8 to 12 o'clock and from 3 to 7 o'clock in the afternoon.

Bagging method When bagging, open the bag mouth with one hand. Put the young fruit from the bottom up into the bag. The other hand will fold the bag opening from the slit to a uniform fold, and use the wire on the side of the bag. The folds are tied tightly. The result is that the single fruit on the branch can be directly tied to the fruiting branch. The bunched fruit is directly tied on the pedicel. The folded fruit bag is creased on the pedicel and can not be sprained. Or tie the handle. Check if the bottom of the fruit bag is open. If the bottom of the bag is completely closed, use a pair of scissors to cut the 2 to 4 cm opening. The upper seal is tight. When bagging, first inside and outside, the action is gentle, and the sagging or standing bagging branches should be fixed in time to prevent the wind from blowing.

After the nesting management, the management of fertilizer and water should be strengthened. After bagging, top dressing can be applied topically, foliar fertilizer can be sprayed, and irrigation and drainage can be observed. Strengthen summer pruning, cultivate enough vegetative branches and protect the leaf curtain layer. Strengthen integrated pest management. Timely stability of the frame, tied branches in time, wind and solid tree.

After the bags are harvested, the bags are harvested after they have entered the mature stage. Remove the paper bag 3 to 5 days before fruit picking. The fruit bags that are tied to the result sticks first support the bottom of the fruit bags, loosen the zhaske of the fruit bags, and rotate the fruit bags and fruit bags to take off the fruits together. The fruit tied to the handle can pull the bottom of the fruit bag to rotate, and even the fruit bag can be taken off together. Picked bags are gently removed and then graded.

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