Four main points of management of kiwifruit in summer

Kiwifruit flesh is juicy, fragrant and delicious, sweet and sour, and resistant to storage. If we want high yield and good benefit of kiwifruit, we need to do a good job in all aspects of kiwifruit management. Today, the editor will introduce to you the four main points of kiwifruit summer management:

Kiwifruit

First, wipe the bud and pick the heart.

According to the management principle of "early sprouting, timely coring, long branch and short cutting", combined with the situation of tree potential, the plant should be pruned many times in the growing period in order to achieve the purpose of high and stable yield of kiwifruit. In the bud germination period, wipe off the improper or overdense buds as early as possible. For the exuberant fruiting branches on the adult plants, 8-10 leaves were left above the fruiting part of kiwifruit to pick the heart. Leave 3-4 leaves for the second branch of the plant after the first coring, 2-3 leaves for the third branch of the kiwifruit tree, and 10-15 leaves for the vegetative branches that can be cultured on the plant. Disease and insect branches and thin and weak branches are generally removed from the base.

II. Pollination at flowering stage

The early flowering stage is late April, the full flowering stage is early May, and the last flowering stage is late May. If there is continuous rain and bad pollination during the flowering period, artificial pollination should be carried out. The specific method is as follows: the male bud of kiwifruit is collected in advance during flowering, and the pollen sac is removed and placed in the room at room temperature of 25 ℃. The pollen sac will open after about a day and night to collect pollen. The kiwifruit was pollinated in two batches during the female flowering period, and the pollination effect of the flowers blooming on the same day was better.

Third, timely fruit thinning

Fruit thinning should be carried out 15 days after anthesis, according to the principle of "keeping the good and getting rid of the bad", leaving the big to the small, the sparse to the dense, and the middle to the base to remove deformed fruit, weak fruit, overlapping fruit, disease and insect fruit. Generally, there are 1-2 fruits in short fruit branches, 3-5 fruits in middle fruit branches and 4-6 fruits in long fruit branches.

IV. Disease prevention and pest control

Flower bud maggots mostly occur from April to May, causing a large number of flowers and fruits of kiwifruit. It can be sprayed three times every ten days with 8000-10000 times of 50% thiazuron suspension and 1000-1500 times of 5% caramel EC. From June to September, 80% Dasheng M45 wettable powder 6000 times, 40% Fuxing EC 6000-8000 times, and 1% Zhongshengxin water agent 200 times were sprayed to control soft rot and brown spot of kiwifruit.