Apple fruiting and fruiting period management is a key link in the whole year's production, directly affecting fruit quality and overall output. At present, we must grasp the key and do a good job in the management of fruit-setting period in order to improve the quality and increase production.
â—† Do a good job sparsely
One week or so after flowering, thinning of fruit begins. According to the strains, the fruit, such as small fruit, disease and fruit, malformed fruit, and tip fruit, are to be eliminated, and the long fruit branches and fruit tops are left to grow vertically and the fruit stems are thick and long. As a result, less fruit is left laterally and on the back to ensure that the shape of the fruit is high and piles are reduced, reducing the rate of defective fruit. The ratio of fruit to fruit of early-mature and late-maturing cultivars is 3—5:1 or the ratio of leaf to fruit is 40—50:1, and the late-maturing Fuji varieties are 4–6:1 or 50–70:1. As a result, the output of 667 square meters was controlled at 3000-3500 kg. For the low rate of establishment of the Marshal Department of varieties, in order to improve the fruit setting rate, to delay the sparse, fruit thinning after fruiting.
â—† Carefully preserve fruit
For the recent climate change in our province, prevent frost and severe weather. Pay attention to watching the weather forecast, will reach the critical temperature of the night of frost, should be stacked in the orchard line firewood smoke liters to raise temperature, can be put 10 heaps per 667 square meters. Tree leaf spray fertilizer. Before and after flowering spray 0.2% -0.3% urea solution 2-3 times; 4 weeks after flowering calcium, can be sprayed 400 times amino acid calcium or 300 times 300 times calcium chloride solution 4-5 times. Flower cuts. For the result of excessive growth of the shoots or the large auxiliary growth branches with strong growth potential, the method of basal circumcision can increase the fruit setting rate, ease the local growth potential, and promote flower bud formation in the year. In addition, the orchards must be highly pollinated and increase the percentage of pollinating trees. If the current conditions are insufficient, it is best to immediately adopt artificial pollination measures. Otherwise, poor pollination and fertilization will make it difficult to produce high-quality fruit.
â—† emphasis on pest control
Some fruit farmers tend to focus on controlling pests after fruiting. They have not seized the critical period of prevention before and after flowering, leading to early occurrences of defoliation in recent years. After Xie Hua spray 80% spray g 800 times solution + 50% carbendazim 1000 times solution to prevent and treat early deciduous disease, ring spondylosis, etc.; after 7-10 days of Xiehua, spraying avermectin to control leafhopper and aphid, Aqueous calcium hydroxide spray 800 times to prevent bitter pit disease. In order to avoid rust on the fruit surface, the medication must be used with caution. The spraying should be uniform and detailed, and the degree of atomization should be good. Use as little or no mineral foliar fertilizer as possible.
â—† Strengthen fertilizer and water management
In flowering and fruit setting period, in addition to foliar spray fertilizer, organic orchard-deficient orchards must be top-dressed in a timely manner. Phosphorus and potash fertilizers should be used mainly, and N, P and K should be mixed to increase tree vigor. Generally, the initial result tree is 0.5-1 kg of ammonium sulfate per plant or 25-30 kg of human fecal urine, and 1.5-2 kg of ammonium sulfate per plant or 50-100 kg of human fecal urine. If the soil is too dry, it should be watered in conjunction with topdressing.
3 Ply Breathable Face Masks,Non-Woven Disposable face Mask,Medical Disposable Face Mask,Medical Disposable Face Mask
Dongguan Keyutai Mask Co., Ltd. , https://www.maskkytai.com