The purpose of removing the core of kiwifruit is to promote the development of new branches, inhibit the growth of fruit trees, make nutrients flow downstream, keep the bud in the best nutritional state and increase the number of fruiting branches.
What does kiwi fruit mean by picking the heart?
Picking kiwifruit, also called topping, is a common plastic surgery method. The specific method is to pinch off a part of the front end of the growing branch.
Suitable time for enucleation of kiwifruit
In summer, it is best to pick the heart of kiwifruit in June and once every two weeks until the end of July, mainly for branching.
Kiwifruit core removal method
When the growth potential of kiwifruit branches becomes weak and they are entangled with other objects, it is necessary to lower the windward branches by 3-5 cm in early spring when the new shoots grow to 15 cm, so as to lower the center of gravity and reduce the wind damage loss. As a result, 3-5 leaves were left at the top of the branch for coring, and 2 leaves were left for coring when the new branch was extracted for more than 3 times.
Matters needing attention in removing the core of kiwifruit
When picking kiwifruit, we should pay attention to the fact that the top should not be too heavy, which wastes the nutrition of the tree and leads to the dense new shoots on the shelf. The basal buds are poorly developed, and flower buds cannot be formed, so the seed setting ability is reduced.
After kiwifruit is denuded, the application amount of germination accelerating fertilizer and pre-flowering fertilizer is relatively large, and the fertilization should be coordinated with nitrogen, phosphorus and potassium, mainly nitrogen and potassium.