According to the survey, the phenomenon of canopy closure is widespread. The main reason is that the new shoots that germinated in the year were not removed in time. The upper part of the tree formed a “hat†that blocked the light, and the lower part and the inner temporal leaf accumulated less nutrients, which affected the enlargement of fruit. , And it is easy to cause hunger and defoliation and disease, so it is necessary to eliminate the new shoots with no space on the back as soon as possible to maximize the three-dimensional sight, to create accumulated nutrients, and to eliminate 20% of underground light spots, and to reach after bag removal. 30%, pay attention to fruit Taiwan branches do not pick not sparse. Moisturize the water to ensure that the fruit trees grow normally and use water. It is emphasized that the soil moisture content should not be too large from the beginning of October to harvest, and it should be moderately arid to facilitate the coloring of apples. Extension of leaf function After mid-August, spraying 300 times urea once every 10 days for 10 days, prolonging the function of leaves, and producing more nutrients for accumulation, which has a certain effect on fruit enlargement, flower bud filling, and storage nutrition. At the same time before and after the beginning of autumn spray Bordeaux liquid. Prevention and control of the small leaf roller moth apple leaf roller moth is common in recent years, after picking bags foraging the peel, the formation of the second fruit, in the third generation of larvae during the early October harvest bag before and after the spraying control, effective agents are farm music, Wan Ling , Tao Xiaoling and so on. Spray rare earth According to the test, before the apple on October 1st began to be sprayed twice 500 mg/kg rare earth every 7 days, the coloring index can be increased by 20% to 25%, the whole red fruit rate by 5%, and the sugar content by 1%. . Picking and picking leaves, turning fruits, and laying reflective films are effective measures for apple coloring and should be vigorously promoted. The best way to take the bag is to carry it out on a cloudy day or at a maximum temperature of 18°C ​​or to unpack the bag at the sunny place. Pick up the leaves 3 days after the bag is unpacked, and then transfer the fruit 4 to 5 days after picking the leaves. Apply a reflective film immediately after the fruit is transferred. Not more than 30%. When the bag is removed and when the fruit is transferred to a fruit that can be worn, use a soft foam film 0.3 cm thick and 0.5 cm in length and width on one side, and stick on the branch where the fruit is in contact, that is, padding to prevent abrasion. peel. Appropriately harvesting the red Fuji flower more than 180 days after harvest can be harvested. It is best to carry out the harvest in batches. This will not only improve the inner quality and promote the coloration, but also concentrate the nutrients and increase the number of small fruits remaining on the tree. Autoclave Sterilizer Products,Washer Disinfector,Autoclave Sterilizer,Atomizing Disinfection Robot Guangdong Widinlsa International Co.Ltd , https://www.guangdongwidinlsa.com
Apple's late management measures
Increase nutrition to strengthen the late supply of fertilizers, make up for the impact of the previous period, have a significant role in increasing the fruit. From early August to mid-September, the sooner the better, the application of potassium sulfate or potassium dihydrogen phosphate 50-75 kg per mu, spraying potassium dihydrogen phosphate 300 times.