1. Autumn pruning
1. Thinning: For all the vegetative branches on the fruiting mother branches other than the two wires, whether it is a trunk and two vine-shaped "triangles" or a single-rod umbrella-shaped inner chamber, the redundant long branches densely grown, and the sprouting strips on the main trunk and the base of the main trunk are the objects of thinning. At this stage, under the condition of high temperature, the excess basal thickness of more than 2cm is thinned out, which is conducive to wound healing, prevents the flow of wounds in the next spring, and inhibits canker infection, but after the canker epidemic area is thinned with a base ≧ 2cm thick elongated branches, it is best to protect the wound with sealing oil or copper preparations in time.
2. Cutting heads: that is, sharpening, mainly for this winter reserved fruit mother branch in advance of the summer and autumn shoots sharpened, in addition to this year's two wires other than the fruit of the fruit branch germination of the summer and autumn shoots should also be sharpened and retracted, the summer tips and the fruit branches retracted, to ensure that the shelf surface branches are not entangled, light transmittance ≧ 30%.
3. Note: This post-harvest pruning, whether it is sharpening, thinning or retracting, the pruning amount does not exceed 30% of the canopy branches of the whole tree.
2. Prevention and control of pests and diseases
1. Adhere to the plant protection measures of "prevention first, comprehensive prevention and control", based on strengthening orchard management, strive to enhance tree potential, control the spread of disease sources, and focus on prevention than treatment.
2. Pay attention to scientific and balanced formula fertilization after fruit picking in autumn, increase the application of medium and trace element fertilizers and biological bacterial fertilizers, and strive to enhance the tree potential and improve the disease resistance of the tree.
After the kiwifruit fruit is picked, the shelf surface is sprayed with insecticides and fungicides and foliar fertilizer as soon as possible to protect the fruit picking wound and leaves, and enhance the photosynthesis ability of the leaves.
Bio-derived berberine and allicin can be used to prevent kiwifruit leaf spot and canker disease respectively and prevent disease defoliation.
3. Nutritional supplements
After the fruit is picked, before the basal fertilizer is applied in autumn, an additional fertilizer is added to strengthen and restore the tree's vigor, which is often referred to as "confinement fertilizer".
Fourth, weed removal
One of the last important tasks after fruit harvesting, but which is often overlooked by fruit growers, is weed removal. Regardless of whether it is an artificial grass garden or a natural grass garden, the removal of weeds in the orchard after autumn fruit picking is actually an important task of pest control. At this stage, weeds are the breeding grounds of various pests and diseases, and the removal of weeds is conducive to destroying the habitat and reproduction conditions of pests and diseases, and inhibiting the number and reproduction of pests and diseases.
5. Clean up the shelf
After the fruit is harvested, the tangled branches are gently cut. The drooping vegetative branches are evenly pulled to the space and strive to expand the light-receiving area of the branches.
After the fruit picking of early-maturing varieties (Cuixiang, Hongyang, etc.), for the orchard or plants with too dense shelf surface, the tip part of the weakened fruit-bearing mother branch was retracted to increase the ventilation and light transmission conditions of the shelf surface. After retraction, the branches at the back that are ready to be the mother branches for next year's fruiting are flattened and evenly tied to the shelf wire.
For the strong branches that are more erect, they should be flattened after being injured (even with three saws or kneading) about 10 cm at the base, and do not arch. Increase the germination rate and fruit branch rate of the branch in the following year. Note that the degree of cleaning should be light, as long as it improves the ventilation and light transmission conditions of the shelf, and should not be too heavy.
The five key points of kiwifruit autumn management are introduced here, I hope it will be helpful to everyone. If you want to buy high-quality and high-yield kiwifruit, you can download the seed bank App, and the country's excellent kiwifruit varieties are for everyone to choose from.
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