Cultivation technology for keeping crape myrtle blooming continuously

Abstract

The invention discloses a cultivation technology for keeping crape myrtle blooming continuously. The cultivation technology specially comprises the steps that firstly, after leaves fall in the autumn of the first year and before air temperature is decreased to zero degree, base fertilizer is annularly applied to the roots of the crape myrtle in a topdressing mode; secondly, when branches of the crape myrtle grow to 30-40cm in length in the spring of the second year, one third of the branches of the crape myrtle are selected for cutting-back, the parts, 10cm in length, of one third of the branches are kept during cutting-back, and two thirds of the branches, which are reserved, constitute a first set of branches which bloom firstly; thirdly, the cutting-back branches constitute a second set of blooming branches after sprouting; fourthly, when the first set of branches starts to bloom, 0.3% monopotassium phosphate and 0.2% urea are sprayed on leaves, and a foundation is laid for blooming of the second set of branches. According to the cultivation technology, by means of grouping and pruning of the branches of the crape myrtle, fertilizer supplement and other measures, the crape myrtle can bloom continuously as long as four months, the full-bloom stage of the crape myrtle can be kept around the National Day, a festive atmosphere can be added to the National Day, and an ornamental effect of the crape myrtle is improved greatly.

Description

technical field [0001] The invention relates to a cultivation technique for maintaining continuous flowering of Lagerstroemia indica. Background technique [0002] Lagerstroemia indica, also known as Jingershu, Hundred Days Red, Mantanghong, Itchy Tree, is a dicotyledonous plant of the genus Lagerstroemia in the family Cerataceae. Produced in southern Asia and northern Australia, it is distributed in East China, Central China, South China and Southwest China, and is widely cultivated in various places. The crape myrtle tree is beautiful, the trunk is smooth and clean, and the flower color is gorgeous; it is easy to cultivate, has strong resistance to stress, and has a wide range of adaptability. It plays an important role in modern urban landscaping, especially in the hot summer when there is a lack of woody flowers. . There is also the praise of "the green in midsummer covers the eyes, and the house is full of red". It is a good bonsai material for viewing flowers, stems ...

AI Technical Summary

Problems solved by technology

[0003] Crape myrtle blooms only once a year under natural growth conditions, but after the first flowering of crape myrtle, the flowering branches are short-cut and pruned to promote the branches to re-grow new shoots, which can make them bloom twice, thus increasing the time for viewing flowers