What are the main points of simple planting techniques of Lagerstroemia indica? How to grow crape myrtle?

1, transplant. After defoliation in autumn and before germination in spring, seedlings can be transplanted with bare roots, and large seedlings need to be transplanted with soil balls. When planting, compost should be applied and irrigated twice to make it permeable, and then timely irrigation, loosening soil and weeding should be carried out. Lagerstroemia indica can be planted in spring with bare roots. Keep the root system intact when planting seedlings.

2. Planting site. The planting site should be sunny, moist and fertile loam with good drainage.

3. Water and fertilizer management. Apply sufficient base fertilizer before planting. The fertilizer can be decomposed human excrement and urine, manure, manure and compost. In the first three years after planting, 65,438+00 ~ 65,438+05 kg (mainly organic fertilizers such as compost and cake fertilizer) should be applied to the roots every winter or spring before germination, and some compound fertilizers can also be applied as appropriate. The surviving Lagerstroemia indica is watered 1 time every spring, 3 ~ 4 times later and 1 ~ 2 times in flowering period. In North China, water with frozen water once before freezing, and pay attention to drainage after rain.

4, plastic trimming. The planted crape myrtle needs pruning. When planting larger Lagerstroemia indica, it should be pruned again before planting, and the trunk with uniform height can be set according to the cultivation needs, and all the upper crowns will be cut off to make the newly grown crowns grow vigorously and neatly. During the growth of young Lagerstroemia indica, the lateral buds at the lower part of the stem should be pulled out at any time, so that the terminal buds and upper branches can get more nutrition, grow healthily and form a complete crown as soon as possible. During the growing season, the residual flowers and branches should be cut off in time to promote the development of new branches to prolong the flowering period, and the crape myrtle inflorescence opens at the top of the new branches. Prune long branches, twigs, diseased branches and dead branches after defoliation.