Key Techniques and Management Methods for Soilless Cultivation of Loofah
Everyone knows that growing crops requires soil, but the soilless cultivation techniques that have emerged in recent years have overturned traditional ideas, allowing crops to be grown very well without soil. The main advantage is that it can also prevent and control a range of pests and diseases, reducing losses, so today I'm bringing you the soilless cultivation techniques for loofah. Come and take a look with me below!
1. Seedling Raising
Before starting to plant, we need to use nutrient pots to prepare the seedlings for loofah before soilless cultivation. First soak the seeds in warm water for 3-4h, then place the seeds in a 0.1% potassium permanganate solution for 2-3h for disinfection, and after disinfecting, scoop them out and rinse them clean with water. After disinfection, begin germination. During germination, the temperature must be kept between 26-30 degrees, because if the temperature is too low, germination will fail. When most of the sprouts have grown to 3-5 mm, on a sunny day place the sprouts into nutrient pots filled with substrate, then cover with substrate and cling film to keep them warm and moist.
2. Management
Within one week after sowing, the daytime temperature should be controlled at 30-32 degrees, and the nighttime temperature should be controlled at 18-22 degrees. Because loofah is a warmth-loving crop, the temperature around the loofah must be maintained. After the loofah seedlings emerge, remove the film on the ground, then appropriately lower the temperature by 3-5 degrees. When the loofah seedlings grow 3-4 leaves, they can be planted out. One week before planting out, the seedlings should be hardened off, keeping the substrate in the nutrient pots moist, watering every morning, with sunlight duration of no less than eight hours.
3. Planting Out
As mentioned above, when the loofah seedlings grow 3-4 leaves, they can be planted out, preferably on a sunny morning. When growing in a greenhouse, a double-row planting method should be used, with a row spacing of at least 0.6m, and a spacing between each plant of at least 0.4m. The spacing between each planting trough should be between 0.8m-1m, which can effectively protect the roots from damage. After planting out, supply the nutrient solution basically once every 1-2d. In cloudy and rainy weather, increase the concentration of the nutrient solution to improve the quality of the loofah.
4. Harvesting
Loofah is a crop that can be harvested multiple times a year. With proper management, it can be harvested once every 7-10 days. When the loofah stem becomes less rough and takes on a bit of color, the fuzz on the skin decreases, and it feels softer when pressed, it is ready to harvest. Harvesting too late will cause the loofah fiber to become old, with the seeds gradually maturing, making it inedible. Therefore, the harvest interval should be shortened as much as possible, and it is best to harvest at around 8 in the morning.
The above is a brief introduction to the soilless cultivation techniques of loofah. Soilless cultivation can save water and fertilizer, reduce pests and diseases, is not limited by region, and is the latest technique for achieving high yields. Loofah, a crop that is prone to diseases and requires large amounts of water and fertilizer, is most suitable for soilless cultivation. However, soilless cultivation is only suitable for large-scale planting, not for families growing it for their own consumption.