Rhododendrons, also known as Yingshan red, bloom in spring, the flowers are colorful, bright red like fire, varied, like the bunting flag of the exhibition is very popular. Rhododendron is beautiful, so many friends who like to raise flowers also love to plant one or two trees in their own yards, but many friends of rhododendron are difficult to feed, planting and planting for some reason to find dry and dead leaves fall to death, people are very depressed, what is the reason why azaleas are difficult to feed it, the following is a simple introduction to you.
One: The growth environment of rhododendrons must be in an alkaline environment
Rhododendron cultivation soil must be weak alkaline or neutral, in order to ensure the normal growth of rhododendrons, in an acidic environment that rhododendron can not survive, especially friends in the north should pay attention to this, because the soil in the north is acidic, this situation can be used ferrous sulfate irrigation, to maintain an alkaline environment conducive to growth and survival. Therefore, we usually do not use domestic sewage such as salt water, oil water, soup, etc. to water, we must pay strict attention to acidity and alkalinity, in order to raise azaleas.
Two: the soil is too watered, resulting in the death of the stagnant roots
Many friends in the process of raising flowers do not pay attention to the way and method of watering, because of impatience, always like to go to the flowers every three or five to water, a long time, as long as the soil in 15 days of water content of more than eighty percent, the root system of rhododendrons will gradually rot, and finally the leaves will die, so planting as long as the soil is hydrated on the line, the soil as far as possible to choose loose and not easy to compact, good water permeability.
Three: It is necessary to thin the root system for the cuckoo according to a certain period of time
The root of the cuckoo is a thin root, and it is a silk disc, if it is a potted cuckoo, the root system will grow in the pot for a long time, unable to absorb nutrients such as water inorganic salts, at which time the cuckoo will suddenly die. Many people will feel strange, their own maintenance is usually no problem, the growth of the cuckoo is also very good, just when the exuberant why suddenly died, this is the reason why there is no timely evacuation. Potted rhododendrons recommend combing the root system once a year, cutting off the rotten roots and old roots around the root system, and cutting off about 5 cm around the root system, so that the root system is more than 7 cm apart from the edge of the pot of the plant, giving enough space for the development of the root system, so that the rhododendron will grow well, the flowering will be gorgeous, the first three years of general planting do not need to thin the roots, and the back can be dredged once a year.
Fourth: Fertilization should be reasonable and scientific.
Rhododendron topdressing can better promote growth, but fertilization should pay attention to the use of cooked fertilizer, but also remember that thin fertilizer is applied diligently, you can use nitrogen-containing compound fertilizer or chicken manure, sheep manure and other farm manure after more than a month of brewing, you can use 1:1000 potassium dihydrogen phosphate to spray leaves during the flowering period, the frequency of fertilization is almost once a month, the effect is very good. In addition, the fertilization season is best selected in April in the spring, around October in autumn, and must not be fertilized in the warmest summer from July to September.
The above are a few tips for maintaining rhododendrons, if you follow these methods to maintain, I believe you can grow bright and beautiful rhododendrons.