How to manage the high yield of Xuehua pear?

How to manage the high yield of Xuehua pear? Please give guidance to plant Xuehua pear for high yield, management methods can refer to the following: 1. Strengthen soil fertilizer and water management before planting, turn 60cm deeply before planting, and apply barnyard manure 80kg to each plant. From the year of planting to the third year, 0.2kg, a special fertilizer for fruit trees, was applied to each tree in June every year, and urea (0.3%) was sprayed on the leaves of the orchard for 4 times. Irrigate twice. Due to adequate nutrition, the crown is rapidly expanding, robust and neat, with a 4-year-old 666.7 square meters of branches and buds of about 10, 000, laying a solid foundation for preterm birth and early harvest. Since the results of the fourth year, fertilization was carried out in early autumn every year, mainly chicken manure or pig manure, with a dosage of more than 10,000 kg; 0.75kg of special fertilizer for fruit trees was applied before flowering and in the first ten days of June; combined with orchard spraying, urea was sprayed 4 times in the early stage and potassium dihydrogen phosphate (0.5%) was sprayed 4 times in the later stage. On the basis of ensuring pre-flowering water and frozen water, the drought changed and irrigated for 3 times for 4 times. 2. Reasonable shaping, pruning and planting basically formed the three main branches of the base in the same year, and improved spindle shaping was carried out from the second year, that is, the three main branches of the base were still retained, and there were about 20 main branches of the whole tree. On the basis of winter pruning, the pruning of the growing season should be strengthened, mainly by pulling branches, opening corners, twisting tips and picking hearts. In general, when the branches are pulled in August, the three main branches at the base will open to 80 °85 °, and the other main branches will open to 90 °. Erect branches look at the size of the space around them, and pick their hearts (large space) or twist their tips (small space) when they grow 30cm. The control of ultra-long branches of the whole branch does not exceed 5%, and medium and short branches account for more than 85%, which not only solves the light, but also increases the accumulation of nutrients, and creates favorable conditions for flower bud differentiation. The garden has never been ringed or sprayed with paclobutrazol (pp333). 3. Strict sparse flower sparse fruit every year in pear flower budding stage sparse flower, leaving a strong inflorescence per 23-26cm. The central fruit is left after fruit setting, and the rest are all removed, with 50 leaves per fruit, so that the amount of single fruit is more than 500g, and the rate of special fruit is up to 90%. 4. timely prevention and control of diseases and insect pests should adhere to the principle of "giving priority to prevention and combining prevention and control". In order to control pear scab, spray 200-fold Bordeaux liquid from May to pre-harvest, 800-fold solution of methyl thiophanate, 800-fold solution of Fuxing 800-fold fungicide 7-color 8 times, and spray insecticide 3 times 4 times to control yellow aphid, pear planthopper, heart-eating insect and so on. Over the past few years, the foliage of the garden is 100% intact, basically disease-free, insect-free, and 98% of high-quality fruit. Click for more pear tree planting techniques click to get more fruit planting techniques