Discussion on Orchid cultivation and Fertilizer Application on balcony

Orchids have the habit of being fond of fat, afraid of oil, and afraid of thickness. it was born in the valley in front of the forest, and the sloping land is loose and fertile in the soil. The orchid planted on the balcony cut off the natural gift, so it must be the plant material loose and breathable and timely and appropriately fertilized to provide nutrition. Plant materials can be used immortal soil, brick grains, pond cornerstones and other granular plants, with the pre-sieve powder fully soaked, press the big, upper and small layers to fill. Fertilization depends on the reality. Orchids and weak plants can be exempted from fertilization in the first year, and others can be fertilized as appropriate in the growing period, because orchids absorb mineral elements through the aerobic orchids on their roots. therefore, the roots of other flowers and cash crops can not be in direct contact with fertilizers with high concentration; if the application of high concentration fertilizer, it will affect the infiltration and respiration of root cells, cause root rot and death of the whole plant. In general, Chunlan chemical fertilizer can be used 2500 to 4000 times, and cymbidium chemical fertilizer can be used 1000 to 1500 times. We should also pay attention to the following points when applying fertilizer: first, it can be fertilized during the growth period of 20-30 degrees Celsius. When the temperature is higher than 35 degrees Celsius or lower than 10 degrees Celsius, there is no fertilization at flowering stage. Second, the proportion of various elements should be adjusted with the growth and development of orchid plants, such as nitrogen fertilizer in the new bud growth period, phosphorus and potassium fertilizer in the plant maturity stage, and full price fertilizer after overwintering and after flowering. At the same time, strong plants must be given, while weak plants should be given little or no application. (Hu Ping)