Wu Yanqiang: What are the methods of planting plum trees and what should be paid attention to in different seasons?

Question: On this issue, the reporter interviewed Zhang Zhicheng, an expert on miscellaneous fruits of Northwest A & F University. Zhang Zhicheng said that in the way of planting Li trees, it is necessary to choose a method with a large line spacing, good ventilation and light transmission, and convenient management, such as rectangular planting, square planting, and contour planting.

The advantage of rectangular planting is that the row spacing is greater than the plant spacing, which is good for ventilation and easy to manage. The square planting is characterized by the equal plant row spacing, good north-south light, and easy management. Planted on the same contour line.

When planting in a flat orchard, mark the measuring rope according to the row spacing of the plant, then fix the points around the planted field, move the measuring rope parallel to the two opposite sides to determine a planting point, and mark with lime. The terrain is more complicated Mountain orchard, first carry out project preparation and then plant trees. After the planting point is determined, the planting hole can be excavated. Generally, the pit is 80 cm deep and 100 cm in diameter. The organic fertilizer, microbial fertilizer and soil are mixed and applied, and the soil is backfilled and filled with water.

When planting in spring, dig a small hole at the planting point, place the Li Miao in the center of the planting hole, stretch the root system, and then cultivate the soil. The soil depth is based on the soil mark left by the seedlings originally growing in the nursery. When filling the soil, gently lift the seedlings upwards, unfold the root system, and step on the soil while filling, so that the soil and the root system are fully combined. And repair tree trays around the trunk and irrigate enough root water. After the water has completely infiltrated, sprinkle a layer of fine soil on the tree tray and straighten the seedlings.

After the plum tree is planted, it should be dried in time. Generally, the height is 50 ~ 60 cm, and a plastic belt of 20 cm is left. There should be full buds in the plastic band to facilitate the development of strong branches. The remaining incomplete branches should be removed in time to reduce the transpiration of the tree. Plum trees are planted in severe cold areas in winter. In order to prevent freezing damage in winter and spring, crescent-shaped mounds can be piled to protect the cold from the northwest of 50 cm from the seedlings before winter. The plum trees planted in autumn should be frozen and sealed before winter, and the soil should be loosened in time after the water has infiltrated. In the spring, trees need to be irrigated before sprouting to facilitate sprouting. It should be noted that the plum trees planted in autumn should be inspected for survival in time when the trees sprout in the spring, and when dead seedlings are found, they should be replanted in time.

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