Pear Tree Winter Management Five Points
I. Clear Garden and Whitening
The leaves, weeds, diseased fruits, and diseased branches in the orchard are promptly cleaned up, and burned or buried in depth to eliminate the spread of harmful bacteria. Spray 1:5 lime aqueous solution on the trunk, because the lime water is highly alkaline, can eliminate the pathogens and overwintering eggs on the tree, creating favorable conditions for the bumper harvest in the coming year.
Second, fertilization and watering
Autumn and winter is the peak period of pear tree root growth, and it is also the critical period for tree nutrient accumulation. To grasp the favorable time from fruit picking to pre-sealing, fertilizing the pear tree in time will facilitate the timely replenishment of tree nutrients, help to enrich the flower buds, and facilitate the restoration of the injured root system as soon as possible. The amount of topdressing during this period should account for 60% to 70% of the annual fertilization amount. Fertilization should be dominated by organic fertilizer to increase soil organic matter content, improve soil aggregate structure, and enhance soil permeability. The use of three-element compound fertilizer and calcium, boron, zinc and other trace elements. Organic fertilizer mainly refers to fermented and decomposed manure and livestock urine, pig sheep chicken manure, and artificially crushed straw and other soil miscellaneous fertilizer. The method of fertilization is mostly digging radiation trench method, generally the width of the groove is 30-40 cm, the depth of the groove is 30-40 cm, and the length of the groove is longer than the projected area of ​​the tree. Water should be promptly applied after fertilization in order to facilitate the tree to absorb nutrients and restore the root system. Pouring frozen water can also enhance the frost resistance of pear trees.
Three, tied grass
Binding a straw handle on the trunk can lure the overwintering eggs and concentrate on burning before the spring of the year to reduce the number of pest wintering bases and reduce the occurrence of pests in the coming year.
Four deep-rooted disk
Deep-turning the root plate can loosen the soil and enhance the permeability of the soil. At the same time, the pest eggs can be frozen to death or the eggs can be eaten by the bird to reduce the pest damage in the coming year.
Fifth, pruning
The plastic pruning of pear trees should be based on the tree species characteristics, age and growth, pruning response, natural conditions and cultivation and management level as the basis for targeted plastic surgery and pruning. The saplings should be dominated by plasticity. According to the tree species and planting density, the tree shape should be determined to promote its early results and early high yield. For trees entering the fruit period, trees should be lightly transferred and sparsely cultivated, so as to avoid the formation of baldness at the base of the main branch due to lack of light in the interior, and at the same time, the rejuvenation result should be constantly updated to enhance its growth and maintain good results. ability. It is also necessary to pay attention to the coordination of the relationship between the large, medium, and small fruiting branches, so that the tree shrubs can be distributed evenly in order to increase yield and improve quality. The aging trees should be updated and rejuvenated in time, and new canopies should be re-cultivated. New branches should be kept as much as possible, and they should be cultivated into fruiting branches as soon as possible.
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