Detailed Explanation of Key Techniques for Outdoor Orchid Cultivation

Outdoorcultivationadvantages: good light, good ventilation, fast heat dissipation. Disadvantages: humidity cannot be controlled during the rainy season, and diseases are prone to occur, so attention should be paid to the following issues: 1: Pesticides should be sprayed promptly, such as Fusarium,soft rotdisease, which is most likely to occur during the rainy season. Prochloraz manganese, Tebuconazole, streptomycin or Bordeaux mixture can be used for prevention and treatment. 2: The materials used must have good drainage, pots should not be placed too close together, as this affects ventilation, and the area under the pot stands must be kept dry with no water accumulation, to avoid bacterial reproduction. 3: To prevent leggy growth, do not apply excessive nitrogen fertilizer. During the rainy season, supplement with phosphorus fertilizer to make the plants more robust. 4: If diseased plants are found, isolate them immediately to avoid contagion. 5: Autumn tends to be dry, and maintaining humidity is difficult. Water should be supplemented on the leaf surface to avoid scorched leaf tips. In winter, prevent cold damage; phosphorus fertilizer should not be too high, and potassium fertilizer should be supplemented in small amounts. http://www.dfac.cc/showtopic-17-259196-0-0-1.htm