How to plant Lagerstroemia indica seedlings

1. Selection of nursery land: Wei Zi likes dry growing environment. The land requires high terrain, which is conducive to drainage and irrigation. The

How to plant Lagerstroemia indica seedlings

1. Selection of nursery land: Wei Zi likes dry growing environment. The land requires high terrain, which is conducive to drainage and irrigation. The soil is loose and fertile, and there is plenty of sunshine. Only good plots can cultivate high-quality seedlings.

2. Soil preparation: The soil fertility of seedlings directly determines the growth quality of seedlings. Before deep ploughing, 6-8 tons of agricultural fertilizers such as chicken manure, pig manure and cow dung should be applied per mu, and then plowed with tractors to a depth of 30 cm. It is best to freeze most pests to death before winter. After soil preparation, the optimum width of the boundary is1.5m, depending on the local conditions. The target is flat, and large pieces of soil are broken and leveled. Irrigation canals should be left at the head of the boundary and drainage ditches should be left at the tail of the boundary. The height should be from beginning to end.

3. Sowing: The temperature is different all over the country, which is far apart. It can be planted in most areas in spring, summer and autumn. Select excellent varieties, and soak Lagerstroemia indica seeds in clear water to accelerate germination 1 day before planting. Then plant it according to the row spacing of 30 cm and drill it. Similar to planting corn, the sowing depth is 1 cm, and the dosage per mu is 10~ 15 kg, which generally germinates in 10~ 15 days. Cover with moist straw or plastic film after planting.

4. Maintenance method: When the Lagerstroemia indica seedlings grow to 8 ~ 15cm, the first thinning is carried out in combination with the weeding opportunity, mainly to remove the piled seedlings, weak seedlings and late sprouts, improve the ventilation and light transmission conditions, and make the strong seedlings grow well and symmetrically with the heel. When the height of the seedlings is 25 ~ 30cm, the seedlings are thinned for the second time. At this time, according to the row spacing of 10cm, about 20000 seedlings are left per mu. June-August is the fast-growing period of Lagerstroemia indica. Combined with watering, apply 40 kilograms of three-element compound fertilizer of nitrogen, phosphorus and potassium per mu, so as to apply fertilizer less frequently and in three times. It rains for a long time and should be drained in time to prevent waterlogging.