How to cultivate watercress green 1, light conditions
In addition to enjoying direct sunlight in winter, watercress green can only be nourished by scattered light in semi-cloudy environment in other three seasons to avoid burning leaves by strong light. In a healthy lighting environment, watercress green can become brighter and more shiny.
2. Temperature range
The growth temperature is generally controlled between 20~30℃, and the warm environment can ensure that watercress green will not have growth problems due to low temperature. After entering winter, it should be moved indoors as soon as possible for maintenance, heat preservation and cold protection. Below 10℃, the growth rate slows down, and below 5℃, the growth stops and it is easy to be frozen.
3. Water irrigation
Bean green is not drought-tolerant, so it must be watered thoroughly, and it can't be short of water and humidity, otherwise it will easily die. Too much watering will lead to water accumulation and root rot in the basin soil, so it is more reliable to adjust the amount and frequency of watering according to seasonal changes.
4. Fertilization
There is a great demand for fertilizer in watercress green, and the fertilization method is mainly to apply thin fertilizer frequently, and to apply 1~2 diluted fertilizer solution every month during the vigorous growth period. Fertilizer types are mainly nitrogen fertilizer and potassium fertilizer, supplemented by phosphorus fertilizer, and a small amount of foliar fertilizer can also be used for topdressing to improve leaf growth.
5. Preventive measures
When planting watercress for greening, it is necessary to do a good job of ventilation to ensure high-quality ventilation, so as to effectively avoid the invasion of germs and pests. In each growth period of plants, pruning should be done well to reshape the green color of watercress and enhance its ornamental value. Don't pour fertilizer on the leaves to avoid burning them.