In order to increase the early results of apple saplings, the following measures should be taken on the basis of strengthening the management of fertilizer and water. In the spring, the buds on the shoots are sculpted. The hacksaws are pulled back and forth close to the tips of the buds and reach deep into the xylem. The width is slightly wider than the buds. About 20 cm at both ends of the shoots and the back buds do not need to be sprouted. The sprouting rate can reach more than 85% through the sprouting, which lays the foundation for a large number of fruiting branches. After mid-April, when the tip of the shoot reaches 20 centimeters in length, it twists 180 degrees at the junction of the red and green shoots, weakening the growth potential and prompting the formation of flower buds. Ring cut, smear "promote flower king" In early May, the main branch of the base should be cut around the center of the trunk about 5 centimeters, smear immediately after the "promoting Kaowang No. 2." The guillotine knife is blunt. Weak branches cut one, strong Wang branches can cut two, two separated by 2 centimeters. Practice has proved that the use of “promoting Huawang No. 2†can not only effectively control the occurrence of Wangzhi but also facilitate the formation of high-quality flower buds. It is also simpler than girdling, easy to operate, and has a high safety factor. In addition, 10 to 15 days after circumcision can be sprayed twice for PBO nutrient enhancer 200 to 250 times, twice at intervals of 15 days, the effect is better. Pulling branches In mid-September, the required main branches were levelled with a string as required by the tree. Before pulling, you can soften the branches first, which is easy to fix. When other unused branches are cut, they can be attenuated. By pulling the branches, the apical dominance of the shoots can be weakened and the nutrients of the tree can be evenly distributed to each bud.
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