Fertilizer damage treatment of Daxuesu

Yunnan snow element, a famous product gifted by nature to human beings, is loved by orchid growers in terms of plant type, flower type and petals, so it has produced a method of promoting seedlings, which leads to counterproductive effects. First, it has hit the enthusiasm of orchid cultivation; Second, it has brought certain losses to the economy; Third, it has damaged limited orchid resources.

In Yunnan, the majority of orchid farmers generally like to plant a few pots of Yunnan snow element, some hundreds of pots, forming an industrial scale, in order to make orchids have a big development, many orchid lovers often use organic fertilizer and inorganic fertilizer, its purpose is to let snow element grow good seedlings, good seedlings, in order to receive more economic returns. In fact, in the process of raising orchids in reality, any use of organic fertilizer and inorganic fertilizer, more than a certain amount will be counterproductive, counterproductive. I remember that in the spring of 1997, when I replanted snow element in different pots, the price of each plant was 500 yuan to 600 yuan, which was considered as the first-class product. No matter how serious and meticulous I was in using soil and mixing soil and planting, I planted snow element in the proportion of 1/10 of sheep dung that had been fermented for nearly one year. In the following year, orchid lovers in Chengdu City of Sichuan Province participated in the World Expo 99 and purchased eleven first-class snow elements. The leaves were 84cm long and 1.4 cm wide. The root system is almost 2 leaves per root, reaching the condition of seedling growth rate, strong resistance and good adaptability. When poured out of the basin, very happy.

In April this year, I bought three Yunnan snow element at a high price, including one seedling of the previous generation and two spring seedlings; when I bought it, it was just planted by others. Tell just planted, do not have to change soil this year, so according to their own management methods. However, after a period of time, there are 42cm high, 1.1 cm wide spring seedlings withered; to the beginning of August, and found that this year's spring seedlings not only burned tip, other leaves with anthracnose; but the previous generation of old seedlings without disease. In order to save this basin of snow element, on August 20, a comprehensive soil replacement was carried out with disinfected materials. In the process of turning pots, the raw pot materials are put in a disproportionate amount of sheep dung, resulting in serious consequences of fertilizer damage. So all the original materials do not use new materials separately. However, from the root view, there is a root with a growth point of 5cm long, the other nine roots are 60cm long, and the white growth point is very good. After disinfection with potassium thiophanate, they are replanted. After half a month, they resume normal growth. From this point of analysis, the original flower owner did not fully ferment the sheep dung used by snow element; in addition, the proportion of sheep dung and soil was not appropriate, which caused the death of spring seedlings this year and the serious fertilizer damage of another spring seedling were the main factors causing economic losses. Therefore, in the process of cultivating orchids, we must follow the natural laws of orchid growth, and must not violate its natural growth laws and artificially cause unnecessary losses. In view of this point, old Lanyou exist, new Lanyou are also more. I sincerely hope that we will not make similar mistakes, lest unnecessary economic losses and mental blows be caused.

The author is executive director of Orchid Association of Yunnan Province, vice president of Kunming City Association; consultant of Orchid Association of Weishan County of Yunnan Province, deputy director of Kunming Panlong Orchid Club; president and secretary general of Orchid Association of Anning City of Yunnan Province; editor-in-chief of Xinfeng Orchid Journal. (Yunnan Yuan Yufang)

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