"people move, trees die", so what will happen to the transplanting of big trees? How to transplant? What should I pay attention to?

As the saying goes, "people move, trees die", so what will happen to the transplanting of apple trees? How to transplant? What should I pay attention to? The original planting land of apple is flat land, sandy loam, the planting density is 2 m × 4 m, and the planting density is 3 m × 5 m in mountain and sandy loam. After transplanting for 2 years, it will blossom and bear fruit. After transplanting the tree, all the flowers and fruits on the tree will be removed the next year, and then there will be a high-yielding year.

I. transplanting techniques

In the autumn of one year before transplanting, dig a 50-70 cm deep circular trench 50-60 cm around the trunk of the tree to be transferred, cut off the lateral roots, and then fill it with ripe soil mixed with fertilizer to promote wound healing and sprout new roots. In order to reduce the slow tree period and improve the survival rate, ink was used as a marker in the south of the tree before transplanting, so that it could be planted in the original direction when transplanting.

The practice shows that the transplanting of big trees is the best in early spring (the end of March), which is beneficial to the restoration of root growth. Large holes should be dug when transplanting, 70-80 cm away from the trunk, so that there are less root injuries, long interception of big roots and more fibrous roots. After the tree rises, cut off the disease and insect roots, cut off the split and broken roots. Immediately dip the root-trimmed apple tree with pre-prepared nutrient mud (13 kg of loess, 50 kg of water and 1 kg of phosphate fertilizer). Then move to the dug planting point. The planting hole is 1.5 meters square, and the raw soil and mature soil are separated, then mix the cooked soil with not less than 50 kg of high-quality soil dung and backfill to the tree hole 20 cm from the ground, irrigation to be planted. When planting a tree, plant it in the original direction, fill the hole with ripe soil and high-quality soil dung, and lift the tree up slightly to stretch the root system. Immediately after planting, the whole hole was irrigated with water for once, and the soil was filled with water after settling.

II. Post-transplanting management

After filling the soil, the transplanted tree should be covered with plastic film under the tree in time (not less than 2 meters square) to increase temperature and preserve soil moisture and improve the survival rate. In the same year, the flowers will be removed in the bud stage in order to reduce the consumption of nutrition. Quick-acting fertilizer was applied in combination with watering in the growing season. Foliar fertilizer was the main fertilizer in the first year after transplanting. After that, adhere to early application of base fertilizer, skillful topdressing, and timely spraying of foliar fertilizer (that is, spraying 0.4-0.5% potassium dihydrogen phosphate or 0.5% urea 3-4 times from June to August). Basal fertilizer was applied in early autumn (around September 20), topdressing before and after sprouting, after anthesis and autumn. The sprouting around the saw blade should be protected, and the useless should be erased in time. In the same year, it is necessary to cut more and less sparse in winter, and the objects of short cutting are branch groups and developed branches, more cutting of new shoots, and full buds at the cutting mouth. Avoid thinning branches on backbone branches, flower buds should be completely cut off, and then pruned according to improved spindle-shaped standards.

Attention should be paid to the observation of transplanted trees, early prevention and control of diseases and insect pests, and attention to leaf protection to ensure that the trees are intact and strong.