1, select culture soil.
(1) Rhododendron Rhododendron does not require much soil, but it is afraid of water accumulation and is not tolerant to waterlogging. Therefore, we should choose loose and well-drained culture soil. Generally, it can be made of 4 parts humus soil, 4 parts garden soil and 2 parts sand, or it can be made of dry pond mud mixed with some coal cake residue.
(2) Evergreen shrubs, bright red in color and large in pattern, have a small triangular flower every three bracts, so they are also called triangular flowers. Light bamboo likes warm sunshine, not cold-resistant, and avoids waterlogging. It is suitable to grow in fertile, loose and well-drained sandy soil, and it will not only grow poorly in sticky, alkaline, low-humidity and waterlogging-prone soil, but also rot and die easily.
Step 2 apply fertilizer
(1) In order to make it blossom, it is necessary to ensure sufficient nutrients, and at the same time, it is necessary to apply fertilizer in a timely and appropriate manner and use it reasonably. Generally, in the vigorous growth period from April to July, liquid fertilizer is applied every 7~ 10 days to promote plant growth. The fertilize can be 10%~20% of decomposed bean cake, rapeseed cake wat or human excrement water.
(2) From May, apply 1 times 10%~ 15% cake fertilizer solution every half month to promote the growth of spring shoots;
(3) Since August, in order to promote flower bud germination, phosphate fertilizer is applied once every 10 day, and 20% liquid fertilizers such as decomposed chicken, duck and pigeon droppings and fish offal can be used.
(4) Less nitrogen fertilizer should be applied after September, and coke putty and a small amount of calcium superphosphate can be used to promote the bright red and beautiful bud leaves. As long as the basin soil is not dry and wet during the growth period, the water demand of Phyllostachys pubescens is less than that of other flowers.
(5) The flowering period starts from June 65438+ 10/0, and from this time to mid-June 165438+ 10/0, it is necessary to apply phosphate fertilizer every half month, and the concentration of fertilizer and water is 30%~40%. After each flowering, topdressing should be done once, so that nutrients can be continuously supplemented during flowering.
3. Water control before flowering
(1) At ordinary times, we should master the principle of "Don't do it, don't pour it, pour it thoroughly". But if you want to blossom neatly and richly, you must control the water before flowering. The watering of bougainvillea was controlled from September, and it can be repeated for half a month after each watering until the soil in the basin is dry and the branches and leaves are soft, and then the normal watering can be resumed after half a month.
(2) Don't apply fertilizer during water control, so as not to burn the roots with fertilizer. In this way, it will take about a month for the buds to blossom, and the flowers will open neatly and flourish.
4. Loosen the soil for the flowerpot
(1) Because of long-term watering, fertilization and rain erosion, the basin soil is easy to harden. Therefore, it is necessary to loosen the soil regularly and remove weeds in the basin soil to facilitate the growth of bougainvillea. Otherwise, the basin soil will harden and accumulate water, which will easily cause root rot or poor growth.
(2) In addition, Lespedeza glabra has a fast growth rate, developed root system and many fibrous roots, which need to be replaced once a year.
5. Temperature
The optimum growth temperature of (1) is 15~30℃, in which it is 19~30℃ in May ~ September, 13~ 16℃ in June ~ April next year, and it can tolerate high temperature of 35℃ in summer.
(2) In winter, the ambient temperature should be kept at not less than 5℃, otherwise it is easy to freeze and fall leaves when it is lower than 5℃ for a long time.
(3) The flowering temperature should be above 65438 05℃. In order to prolong the flowering period, it should be moved indoors in time before the arrival of the cold current in early winter, and placed in a sunny place to maintain a high ambient temperature (flowering can continue during New Year's Day to Spring Festival).
6. Lighting equipment
(1) is a light-loving and positive flower. Insufficient light in the growing season will lead to weak plant growth and affect bud pregnancy and flowering. Therefore, all the year round, except the newly planted seedlings, they should be placed in the semi-shade.
(2) It should be placed in front of the south window in winter, and the illumination time should be no less than 8 hours, otherwise a large number of leaves will easily appear. Short-day flowers can sprout and bloom in one and a half months if the daily illumination time is controlled at about 9 hours.
Extended data:
First, the ornamental value
1, Lespedeza smooth has large bracts, bright colors like flowers and long duration, which is suitable for garden planting or potted viewing. It can also be used for bonsai, hedges and pruning. High ornamental value.
In Brazil, women often wear them on their heads as decoration, which is unique. Europe and America are often used as cut flowers. China is a beautiful ornamental plant planted in courtyards and parks in the south and greenhouses in the north.
Second, the medicinal value
1. Leaves can be used as medicine, pounded and applied to the affected area, and have the effect of removing blood stasis and reducing swelling. The flower of Phyllanthus urinaria can be used as the basis of medicinal materials, promoting blood circulation, regulating menstruation, eliminating dampness and stopping leukorrhagia. Treat blood stasis amenorrhea, irregular menstruation and leucorrhea.
2. The stems and leaves of Lespedeza glabra are poisonous. Eating 12-20 tablets will cause diarrhea and bloody stool.
3, flowers as medicine, reconcile qi and blood, treat leucorrhea, regulate menstruation.
References:
Baidu encyclopedia-azalea