How to water and fertilize the fast-growing Lagerstroemia indica?

The fast-growing Lagerstroemia speciosa should keep the soil moist throughout the growing season, and water it 1 time in spring drought. It is not advisable to water too much in autumn flowering period, generally 15 days or so 1 time; Pour enough antifreeze in winter.

Lagerstroemia indica fertilization is generally in winter or early spring; Each plant can be applied with decomposed human manure 10 ~ 15 kg or organic fertilizer 2 ~ 4 kg, and a small amount of inorganic fertilizer can be applied in May ~ June. In the seedling growing season, nitrogen fertilizer and compound fertilizer should be applied to promote seedling growth. 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.

Jiangxi agriculture, countryside and farmers warmly remind that the surviving Lagerstroemia indica should be watered 1 time every spring, 3 ~ 4 times in the future and 1 ~ 2 times in flowering period. Water frozen water once before freezing in North China, and pay attention to drainage after rain.