First, soil and fertilizer management 1. Soil management Soil deep turning and maturation is the basic measure for increasing production. Deep plowing can improve soil, increase soil permeability, and promote tree growth. 2. Fertilizer application basal fertilizer, timely basal fertilizer after unsuccessful, to supplement the tree nutrition, basal fertilizer to organic fertilizer, 3000-4000 kg of organic fertilizer per acre ditch, plus 20 kg of urea, 50 kg of superphosphate, grass ash 500 kg. Fertilizer, generally 3 times in 1 year to recover, in the middle of March when the sap began to flow, each topdressing urea 0.50-1 kg, in order to supplement the nutrients needed for tree growth, lay a good foundation for improving fruit set rate. After culturing, 0.50 kg of urea per plant was used to increase fruit setting rate. Before the flower bud differentiation at the end of July, 0.50 kg of urea, 1.50 kg of superphosphate, and 5 kg of plant ash were used to promote fruit growth and fruit quality. 3, watering 4 years, usually poured 4 times the water, the spring irrigation conditions in the top dressing after the pouring of water, in order to promote the absorption and utilization of fertilizer. After flowering, topdressing watering is used to increase fruit setting rate. Pour 1 water after wheat harvest to promote flower bud differentiation and rapid fruit growth. Pouring frozen water, and pouring frozen water in time in winter to facilitate safe wintering of trees. Second, pruning 1, winter pruning (1) To prevent baldness of the internal hemorrhoids, because the branches of the hawthorn are easy to branch off, and the periphery is often closed. The growth of the internal branchlets is weak, and the dead branches increase year by year. The middle and lower parts of the big branches at all levels gradually become barely bald. Measures to prevent baldness in internal hemorrhoids should adopt the principle of combination of sparseness, contraction, and cut-off and carry out transformation and rejuvenation, and sparsely remove the stems and round stems of round and dense branches and competing branches, leggy branches, disease and insect branches, and shrink and weaken. The main collaterals were selected to retain the buds of the appropriate sites for minor updates and to cultivate robust branches. The methods for cutting and rejuvenating the weak branches and injuring the shoots in the bald areas were modified. (2) After entering the fruiting period, the young trees with short cuts and short cuts can be differentiated into flower buds for the new shoots with full growth and budding. The top buds and the buds below 1-4 can be differentiated into flower buds. To protect flower buds. (3) After the multi-effect hawthorn tree entered the fruiting period, many years of continuous results led to drooping branches, the growth potential gradually weakened, and the backbone stems appeared Jiaozuo and the yield decreased. Branches should be updated in time to restore tree vigor. For many years of continuous results of the branch or other redundant branches, drooping branches, Jiaozuo branches, perennial long branches, retracted to the strong rear part of the delivery, and the use of the back branches to take the lead, in order to enhance the growth potential, and promote the improvement of yield. 2, summer trim (1) The branches and branches have strong ability to shoot new shoots. Generally, 2-3 lateral shoots at the top of the shoots can draw strong branches. Each year, the branches of the trees are surrounded by many branches, so that canopy closure, poor ventilation, and light transmission should be as soon as possible. Remove sparsely located and prosperous development branches. The branches that germinate on the lower lateral buds of the inflorescence were all removed, and the bare middle and lower parts of the big branches at all levels were overcome, preventing the outward movement of the resulting parts. (2) In the summer, when the shoots that grow vigorously and have space are stopped growing in the new shoots in late July, the shoots will be leveled, the flowering will be promoted, and the yield will be increased. (3) Topping Heart In mid-May, when the inner branch of the tree crown grows to 30-40 cm, leave 20-30 centimeters to pick up the heart, promote flower bud formation, and cultivate compact fruit branches.
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