How to raise carambola
As a tropical specialty fruit, carambola is deeply loved for its sweet, sour and juicy taste, but its planting process often confuses novices. From temperature control to pest and disease control, this article systematically combs the eight core points of carambola cultivation, and combines high-definition real-shot illustrations to help you easily harvest the tree full of gold stars. 1. Temperature and light management of Carambola growth environment. Carambola is a typical tropical plant. It needs to maintain an environment of 20-30℃ during the growth period. Windproof sheds need to be built when the winter temperature is lower than 12 ° C, and double film insulation can be used when the cold current strikes. There is no need to shade in summer, and direct light is guaranteed for 6 hours a day throughout the year. Insufficient light will lead to a decrease in the sweetness of the fruits. The rhythm of water supply adopts the "two-look watering method": look at the temperature-above 25 ℃, pour it once a day in the morning and evening, and pour it thoroughly every 2 days at 15-20℃; look at the soil quality-increase the watering amount by 20% for sandy soil, clay needs to be mixed with 30% perlite to improve drainage. Maintain soil moisture at 60%-70% during the flowering and fruit period to avoid root rot caused by stagnant water. 2. The nutritional management plan of carambola implements the "three-stage fertilization method": applying nitrogen, phosphorus and potassium balanced fertilizers (15-15-15) every month during the seedling period, adding phosphorus and potassium fertilizers (10-30-20) before flowering, and supplementing calcium and magnesium fertilizers during the fruiting period. It is recommended to use slow-release fertilizer granules for potted plants, and the effect is better if 5kg of decomposed sheep manure is mixed per cubic meter of substrate. 3. Carambola propagation and pruning technology How to raise Carambola
In Hainan, it is necessary to soak seeds for 24 hours before sowing from February to March, and plug seedlings are used to maintain the substrate temperature at 28℃. In the north, it is recommended to raise seedlings indoors in May, and pick the seedlings when they grow to 30cm to promote lateral branch differentiation. The styling and pruning techniques implement the "two cuts and one shaping" strategy: the top is cut off at 60cm during planting to promote the emergence of 3-4 main branches. After the results, the inner branches are trimmed to maintain ventilation, and the long branches are retracted every year after fruit picking. Pay attention to retaining 1/3 of the old branches as nutrient branches to avoid the renewal of the whole plant affecting yield. 4. During the high incidence period of carambola disease and insect pest control (T-J) disease (rainy season), spray 80% mancozeb 600 times solution in advance, cut off the disease fruit and smear the wound with Bordeaux mixture. The control of bird feather moth uses the biological pesticide Bacillus thuringiensis, which is sprayed once every 15 days for three consecutive times to effectively control pests.
Mastering these key techniques for growing carambola and regularly observing plant conditions, even novices can achieve fruit bearing all year round. It is recommended to establish a maintenance log to record data such as temperature and fertilization, and gradually form a personalized cultivation plan suitable for the local climate.