August is a crucial period for fruit development and flower bud growth in most pome fruit and mid-late maturing fruit trees. Fruit trees began to enter the flower bud morphological differentiation stage, and the late-maturing varieties entered the fruit expansion period. During this period, high temperatures, rain, light, humidity, pests and diseases prone to spread, is a critical period for the prevention and control of pests and diseases. At the same time, it is also a key management period for doing a good job of controlling the tree potential and promoting good fruit development.
1 In summer, when the summer cuts into August, the large trees with excessive auxiliary branches need to be sparsered to remove some of the large branches between the layers to improve the ventilation and light transmission conditions and improve the quality of flower buds. The juvenile tree can be implemented with new shoots and branches. The extension head of the non-backbone branches was short-cut at the base of the autumnal shoots to promote the secondary branches to form flowers; the branches were erected on top of the shoots and the competition was held by the hand and the lower part was repeatedly gripped without damaging the leaves. Damage to the shoots and sagging or horizontal, inhibiting the growth of the top, to promote the sprouting of lateral buds into a short, can be in the year or the following year to form flower buds. In late August, the branch opening angle will be started. The saplings will insist on pulling branches each year before they are formed.
2 Fertilization Entered in August, combined with spray spraying 1000 times Jinfu cattle 718 leaf fertilizer or M-JFN foliar fertilizer, (foliar fertilizer fertilization Fengmintong and fertilizer) to promote new shoots mature. Spraying once a day after 10 days can increase the coloration of the fruit and increase the sugar content. The autumn shoots gradually stopped growing in mid-August, and the hole Shimeng 28 fruit tree liquid fertilizer can prevent premature leaf aging, promote tree nutrient accumulation, restore tree vigor, favor flower bud differentiation and fruit enlargement, and help increase the fruit setting rate in the following year. And increase the growth of new shoots, combined with the hole Shimeng 28 fertilizer (foliar fertilizer fertilization Fengmintong and fertilizer) for watering, and cultivation of orchards.
3 The foliar spray of calcium fertilizer Fengmintong and fertilizer Meng Ding fruit color foliar fertilizer (foliar fertilizer fertilization, Fengmintong, and fertilizer) is a best product of calcium supplements for fruit growers in recent years. It should be the best calcium absorption in fruit trees and fruits. In order to achieve good results. Fruit trees have two peaks of calcium absorption each year. The first peak period is 40 days after flowering (ie, young fruit period), and the leaves and fruits are sprayed 2 to 3 times. The second peak of calcium absorption is at 40 days before fruit picking, 2 days after bagging, bags should be sprayed 1 or 2 times with Fengmin Tongyu and fertilizer Meng Ding fruit color foliar fertilizer (foliar manure fertilizer fertilization Fengmin Tongyu fertilizer) 1000 times, mainly It is the cause and effect of constant enlargement, and the concentration of calcium in fruit decreases accordingly.
4 bagging bags go bagging from the middle and late August. Double bags should go outside the bag first, 3 to 5 days after the inner bag; the first bag first tear the paper bag longitudinally, residual bags left on the fruit, 3 to 5 days later removed. After the bag is removed, the leaves, fruit, and reflective film are treated to promote the overall coloring of the fruit.
5 Pest control
In the first half of August, spray 68.75% Yibao water dispersible granules 1200 times mixed with 25% diflubenzuron III 1200 times + M-JFN (foliar fertilizer fertilization Fengmin Tongyu fertilizer) to prevent apple rotten fruit disease, apple Spotted deciduous disease, gold-lined moths, leaf roller moths and other pests. Brown spot occurs severely in apple orchards, but it can also be used interchangeably with Bordeaux mixture such as benomyl, bactericidal and other systemic fungicides. The combination of medicine and fertilizer can achieve more ideal results.
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