The planting technique has a row spacing of 3m*4m, and a trench with a width of 0.8m and a depth of 0.8m before planting. 2500kg of decomposed organic fertilizer is applied per 667m2; sufficient water is poured after planting; the yellow crown can be used as a pollination tree when the garden is built.
In the autumn, the fertilizer and water management will dig a 30cm wide hole along the tree, and apply 20kg of high-quality organic fertilizer per plant, and apply appropriate amount of ternary compound fertilizer. During the growing season, such as germination stage, fruit expansion period, etc., timely topdressing and irrigation In the early stage of topdressing, nitrogen fertilizer was mainly used, supplemented by phosphorus and potassium fertilizer; in the middle and late stage, phosphorus and potassium fertilizer were mainly used, supplemented by nitrogen fertilizer; foliar fertilization was sprayed once every 10 days for 0.5% potassium dihydrogen phosphate + 0.3% urea solution + Photosynthetic micro-fertilizer or spray Shibao, fertilization is generally combined with watering, and is poured once before germination, fruit expansion period and before freezing. If it is drought, it should be watered in time. In July and August, even rainy days should pay attention to drainage.
Reasonable pruning should be mastered in the practice of multi-retention, multi-use, multi-discharge, multi-cut, and sparse. In the same year, the basic formation of the basic three main branches will be formed, and the improved spindle-shaped shaping will be started in the second year, that is, the base three will remain. The main branch has a spindle shape above it, and the whole tree leaves about 12 branches. During the growing season, attention is paid to the branching, opening and topping. In August, the three branches of the base are opened to 70 degrees-80 degrees, and the other main branches are opened to 90 degrees. The erect branches are considered to be the size of the surrounding space. When the space is 30 cm long, the heart is picked and the whole tree is controlled to be no more than 5 %, medium and short branches account for more than 85%; when the space is small, the flower buds should be formed first, and the flowering results should be reduced to the branches. Even the strong erect branches should not be easily removed, and the transformation should be used as much as possible.
The flower and fruit management of this variety has a high self-cultivation rate, strong fruit-bearing ability and large fruit, so it is necessary to thin the flowers and fruit to ensure fruit quality. Every year, in the bud stage of the pear flower, a lace fruit is left every 15-20cm after fruit setting, and the rest are all removed. Each fruit is guaranteed to have 50 leaves. After fruit thinning, the fruit quality rate can reach more than 90%. In order to improve the appearance quality of Yulu pear, the fruit is required to be bagged. The bagging is carried out after the fruit is fixed in early June. Pay attention to the morning after the dew is dry, and avoid the noon of direct sunlight. Before bagging, spray the insecticide and fungicide once on the tree, and then select the fruit bag with reliable fruit and good light. When bagging, be careful not to touch the fruit stems and fruits. In addition, no bactericidal and insecticides will be sprayed 20-30 days before harvesting to prevent pesticide residues from exceeding the standard.
On the basis of comprehensive management, the prevention and control of pests and diseases should pay attention to the source of pests and diseases during the dormant period, and protect the branches, leaves and fruits during the growing season, so as to achieve "anti-healing" and "prevention before treatment".
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