How should pear tree planting be managed in spring?

How to manage pear planting in spring? Please give guidance on the management of pear planting in spring with reference to the following methods: first, strengthen the management of fertilizer cultivation. 1, apply sprout fertilizer well: adult pear trees are required to apply 1.5 kg of special fertilizer for fruit trees after the Spring Festival, and 0.3 kg of special fertilizer for young trees planted along the mountain in 2003. Orchards with poor application of basic fertilizer should appropriately increase the amount of fertilizer. 2. Make a good foliar fertilizer: after the leaf color turns green, spray with 0.3% urea plus 0.2% potassium dihydrogen phosphate or 2500 times the liquid to produce dynamic element. 2. Strengthen the prevention and control of diseases and insect pests. 1. Open the garden medicine well: when the flower bud scales are loose to just bloom, give the first medicine and the second medicine 80% after Xiehua. Spray with magnesium 3 degree stone flow mixture or 2.5% green kungfu 2500 times liquid or 2.5% enemy kill EC 3000 times liquid spray, such as chemical pesticides should be added to prevent disease pesticides, fruit growers should pay attention: do not hit any pesticides during pear flowering, so as to avoid drug damage. 2. Control pear scab: spray the first medicine on the pear tree during Xiehua and leaf expansion, and spray the second medicine 15 days later. Spray evenly with DuPont Fuxing 8000ml 10000 times liquid or Shigao 2500 times liquid or uniconazole 2500 times liquid. 3. Do a good job in flower and fruit protection. 1. Chemical fruit protection: from the early flowering stage, 0.2% borax white sugar solution is used, plus 1 g of 2m 4m D is sprayed with 200kg of water or 15PPm of naphthalene acetic acid, and a total of 2rel is sprayed for 3 times. 2. hanging vase and flower arrangement: if the pollination trees in the garden are insufficient or the flowering period is not met. Use the bottle to hold water, insert pollination branches into the bottle, hang in the middle of the pear tree, each branch hangs 4 bottles. 3. Artificial pollination: first collect the bell buds of pollinated pear trees, remove petals and sundries, put the anthers in white paper, then place them in 20 ℃ or wrap the anthers in white paper and put them in the pocket of personal underwear to hatch. After the anthers crack (about 20 hours), shake in the jar until yellow powder appears on the inner wall (that is, pollinated pollen). Use a brush or rubber head or feather to dip a small amount of pollen onto the pistil of the flower. 4. Releasing bees in pear orchard: it can greatly increase the pollination rate, and it is an effective measure against low temperature and heavy rain in spring. Fourth, strengthen the management of the renewal of pear varieties, restore the crown and yield as soon as possible and check the survival rate of grafting in spring, pick out some buds covered with thin film with pins, and cut off a section of those that do not survive. After survival, the buds far away from the buds should not be erased in order to increase the green leaf surface and increase moisture, but they must be completely erased in the middle and late May before they are lignified. When the new tip of the bud grows to 30-40cm, it is necessary to tie bamboo sticks and other windproof. When 50mi 60cm, the heart should be removed in time to promote branching, and the film should be loosened before the film grows into the branch from May to June. In the high-grafted pear orchard, the control of pear aphid and pear scab should be strengthened, the management of fertilizer and water should be strengthened, the growth and development of trees should be promoted, the crown should be expanded and the yield should be restored as soon as possible. Click for more pear tree planting techniques click to get more fruit planting techniques