发布日期:2020-08-19 点击次数:229
Thin branches.
For closed trees, thin branches reasonably, and the objects are upright branches, sprouting branches, and competing branches on the auxiliary branches, with pulling and oblique branches, etc., to attract light into the crown and promote coloring.
Remove bags.
The fruit needs to grow in the bag for 100-110 days. The bag is double-layer inner red color fruit bag. When removing the bag, it is best to remove the bag two times, first remove the outer bag, and then remove the inner bag within 3-5 days. It is best to remove the bags in cloudy or cloudy weather. When removing the bags on a sunny day, it should be done at 9-12 am and 3-7 pm. When removing the inner bags, first remove the bags in the eastern, northern and branch crowns in the morning. When removing the bag in the afternoon, the fruit should be torn from the southern and western half of the canopy into an umbrella shape to cover the fruit. Take care to prevent removing the bag during the high temperature period to prevent sunburn.
Picking leaves and turning fruits.
First cut off the shading and fruit-sticking leaves around the fruit. After 5-6 days, remove the shading leaves, small leaves, yellow leaves and old leaves around the fruit, and then remove the autumn leaves and upper branches that affect light transmission. Trying to keep the functional leaves, so as not to affect the photosynthetic efficiency. The number of picked leaves should not exceed 20%-30% of the whole tree. Turning fruit is gently within 5-8 days after removing the bag, so that the back side of the fruit is turned to the sunny side. Do not use excessive force to avoid twisting the fruit.
Spray medicine to prevent diseases and supplement calcium fertilizer. After the bag is taken off, the skin is delicate and easy to be infected with red spot disease, and the stomata will increase, leading to cracks. In addition to calcium deficiency, calcium deficiency and other diseases are prone to occur, and the fruit surface will appear small cracks, which will reduce the storage and commodity performance of the fruit. . Therefore, after removing the bag, spray bactericide and calcium fertilizer for 1-2 times. The bactericide can be 600-700 times of propsenzine or 1000-1500 times of thiophanate-methyl, and calcium fertilizer can be used for micro-replenishing power. 1000 times, 5-7 days apart, the effect is better if you can add a spray of micro boron to 1000-1500 times.
Place reflective film under the tree. From September to October, after removing the bags, immediately lay a silver reflective film along the row under the tree, which is conducive to the coloration of the inner chamber and the lower half of the canopy. After spreading, clean the film surface frequently to keep it clean and increase the reflective effect. Collect the film 1-2 days before picking, wash it and dry, and set it aside later.
Partial harvest at the right time. Generally, about 10 days apart from the inner bag, the fruits can be harvested when the appearance quality reaches the commodity requirements. Pick the top and outside fruits, and then pick the inside and under the crown after a few days. One is harvesting in batches by grade. The second is to handle with care to reduce bumps, pressure, punctures and scratches. The third is to pre-cool in time and then store them in to ensure the commerciality of the fruits.