In September, ripe varieties of apples matured one after another, and the trees entered the late stage of growth; late-maturing varieties were the key period for quality control. The following aspects should be grasped in management:
The timely harvesting of medium-maturing varieties timely harvesting is an important condition for ensuring the quality and storage of apples. The harvest was too early, the apple was not fully developed, the coloration was poor, the weight was light, the flavor was poor, and the store was not tolerant to storage. When the harvest was too late, the apple had reached the peak of breath and the storability was greatly reduced. The Marshal is harvested from Apple in early September. At this time, the apple is bright and well colored. Golden Delicious apples should be harvested in mid-September, when the fruit surface yellow-green background. Picking is generally performed in the order of the upper part of the crown of the lower part of the crown and the inner part of the crown of the first crown. To protect the result branches, prevent damage to the resulting branches and bump the flower buds.
Apple Late-maturing Variety Management In late September, bagging, late-maturing apples such as Red Fuji were bagged, picked leaves, transferred fruits, and silver-gray reflective films. In order to promote the coloring of the apple and achieve full redness, the shaded leaf near the bagged apple is removed at the same time when the outer bag is torn open. The leaves of the fruit and the leaf within 5 cm from the apple are picked first, and after 3 days, other shading blades are picked. 10 days after bag removal, when the apple's positive surface has been fully colored, gently lift the apple by hand and rotate 90-180 degrees so that all parts of the apple are fully exposed and evenly colored. Picking leaves and turning fruits should be carried out on cloudy or cloudy days. Sunny weather should be carried out after the temperature drops at 4 pm. Conditional apple orchards shall be provided with a silver-gray reflective film under the canopy immediately after bagging to promote the coloring of the pods and the lower apple and apple pods in the tree body, and at the same time, the branchlets shall have good light and full flower buds. In addition, attention should be paid to properly removing the dense branches on the outside of the crown and the upright branches on the back, the long branches on the inside, and the sprouting branches of the saw cut.
Soil and Fertilizer Water Management In September, the cultivated loose soil in the apple orchard should be strengthened to keep the soil loose and well ventilated to create a good soil environment for root growth and development. Basal fertilizers should be applied in time after the medium-harvest apple varieties are harvested, so that they can be partially used during the year. Therefore, when the root is the third peak of growth, the basal fertilizer can produce callus from the damaged roots, and it also has a pruning effect on the root system, and it can also promote new roots. Basal fertilizer is mainly composed of fully mature organic fertilizers, and appropriate amount of quick-acting chemical fertilizers or fruit tree-specific fertilizers are added, and the amount of fertilizers accounts for 60%-70% of the total annual fertilizer. The young apple tree applies 2000-2500 kilograms of organic fertilizer per acre, plus 20 kilograms of urea and 80-100 kilograms of superphosphate; apple trees over 5 years old apply 4000-5000 kilograms of organic fertilizer per acre, plus 40-50 kilograms of urea and 100 -150 kg of superphosphate. Take ring groove and strip groove fertilization. To fertilize the ring groove, dig 40-50 cm wide and 40-60 cm deep in the ring groove at the outer edge of the canopy. Mix the back and the soil in a ratio of 1:3. Cover the soil; The canopy size is fertilized in rows of apple trees, between plants or in rows of 40-60 cm wide and 40-60 cm deep, and watered immediately after fertilization. After medium-harvest apple varieties were harvested, spraying 0.5% potassium dihydrogen phosphate plus 0.5% urea mixture every 10-15 days on leaves could improve the photosynthetic function of the leaves and delay the defoliation. In September, we must do a good job of drainage and flood prevention to facilitate apple coloring and improve the appearance quality.
IPL Hair Removal,IPL Laser Hair Removal,IPL Hair Removal Machine,IPL Laser Hair Removal Machine
Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.meizons.com