Key Points of Kiwi Fruit Management in Winter

Water management The root system of kiwifruit is fleshy root, which is more sensitive to the requirements of soil moisture. The requirements of moisture are: like moisturizing, afraid of drought and afraid of waterlogging. According to the rainfall situation, the ditch and enclosing ditch in the orchard must be unobstructed so that the rain can pass through the trunk.

Fertilization and fertilization time is usually carried out after the end of the drought when the drought is relieved. Organic fertilizer is the main form, such as manure, compost, garbage, weeds, etc. Generally, 25 kg of fruit trees should be used for organic fertilizer. Fertilizer 25 kg, reaching "Jin Guo Jin fertilizer", 2 kg quick-acting nitrogen fertilizer, or 1.5 to 2 kg special compound fertilizer for kiwi fruit. Fertilization method: dig two deep trenches of 35 cm or more around the tree tray or on the opposite sides of the canopy. The orientation of the trenches can be carried out in a year-round east-west direction, and a year-round north-south direction. Fill the bottom of the trench with coarse organic fertilizer, such as miscellaneous For grass, the middle layer is filled with organic fertilizers, such as fence fertilizers, and the top layer is applied with available nitrogen fertilizers, such as urea. However, when the drought has not been relieved and the rain has not fallen through, do not move the soil to fertilize, so as not to damage the roots.

Pruning In winter, the amount of pruning is large, and attention should be paid to the number of buds and the length and method of pruning. Pruning time is two weeks after leaf fall to two weeks before bleeding. When pruning, cut off dead branches, diseased and insect branches, weak branches, cross branches, and dense branches from the base. The resultant mother branch should be updated in time and cut off from the base. For plants with the main stem and main branch disorder, try to straighten out the subordinate relationship of the main stem and main branch, and then pruning according to the characteristics of the variety. The Zaoxian, Jinfeng and other varieties of Chinese species, due to short internodes and strong fruiting ability, should be pruned heavily. Leave 4 to 6 short shoots for short and weak nutrient branches; leave 6-8 short shoots for medium and strong nutrient branches; leave 6-8 short shoots above the fruiting part of the branch, generally 25-40 per plant The result mother branch. Delicacy species, such as Xuxiang, Bruner, etc. should be cut lightly, using long-shoot pruning method, leaving 6-10 short shoots for short and weak vegetative branches; leaving 11-16 short shoots for medium and strong vegetative branches; The resultant branches leave 6-8 short shoots above the fruiting position, and each plant leaves 20-30 fruiting mother shoots. After pruning, the remaining branches should be flattened and tied on the shelf with cloth strips to make the resulting mother branches evenly distributed.

The scaffolding is the basis for the high-quality and high-yield kiwi fruit. The branches should be clearly distributed after pruning in the unscheduled garden, and the scaffolding should be carried out at the time when it is easy to tie. The damaged garden should be repaired or replaced in time.

Deep plowing the soil through deep plowing can loosen the soil and enhance the ability of permeable and fertilizer retention. The deep turning time is generally carried out from early November to early December. It can also be combined with fertilization during the deep turning process. The deep turning depth is required to reach about 40-50 cm. But it should be noted that as little as possible to cut off roots more than 0.5 cm.

Garden cleaning is mainly to eradicate weeds, clean up ditch, and prevent diseases and insects. Garden cleaning can be combined with winter pruning. The cut off diseased branches should be burned or buried deeply. The pesticides for disease and pest prevention can be made into 60 times liquid with crystal lime sulphur mixture, and the whole branches can be sprayed to dryness. It is required to be completed before budding.

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