What to do with rotten white orchids
As a common ornamental flower in the courtyard, the problem of rotten roots of white orchids plagues many gardening enthusiasts. The fleshy root system is neither resistant to standing water nor afraid of drought, making the maintenance process challenging. This paper systematically analyzes the complete plan for root maintenance of white orchid from three dimensions: water management, fertilizer regulation, and fertilization skills. Scientific water control, maintenance, root watering principles and seasonal management The water content of white orchid fleshy roots reaches 70%, and watering must follow the principle of "seeing dry, seeing wet". Water is poured every 2-3 days during the spring germination period, and water is replenished once in the morning and evening in summer. When used with a canopy, the impact of heavy rain can be avoided. Determine the moisture status by observing the state of the leaves: the dark leaf color and drooping indicate water shortage, and the red petiole warns of water accumulation. Emergency treatment plan for stagnant water immediately after heavy rain, tilt the flowerpot to drain stagnant water, and use a bamboo stick to the pot soil hole to speed up drainage. When serious water accumulation occurs, it is necessary to remove the pot and dry the roots, cut off the black and rotten root systems, and replace the pine needle soil with stronger air permeability and put it in the pot again. Salt damage management and fertilization skills The scientific application of organic fertilizers must be composted at 60 ° C for more than 30 days and mixed with garden soil in a ratio of 1:5. It is recommended to use potassium sulfate compound fertilizers for chemical fertilizers to avoid the accumulation of chloride ions caused by potassium chloride. Use an EC value detection pen to monitor soil conductivity every month, and immediately soak it in a basin if it exceeds 1.8mS/cm. Root burn prevention strategy and precise fertilization practice. The circular ditch fertilization method is used during the growth period from May to August: dig a 3cm deep circular ditch 15cm away from the main stem, evenly sprinkle 5 g of slow-release fertilizer, and cover it with soil. Using 0.1% potassium dihydrogen phosphate foliar spraying instead of root topdressing during the fertilizer cessation period in winter can not only supplement nutrients but also avoid the risk of root burning.
By establishing a "three inspections and three controls" maintenance mechanism-checking soil moisture, leaf status, fertilizer residues, and controlling water volume, fertilizer amount and concentration, more than 90% of root rot problems can be effectively prevented. It is recommended to conduct a root health check once a month and adjust the maintenance plan in time to keep the white orchids full of vitality.