After years of experimentation and careful observation, we have refined two traditional techniques in watermelon cultivation. These changes have allowed us to boost production by 30% to 40%, and in some cases even over 50%—all without any additional cost.
First, we changed the practice of keeping short, lateral vines from the early stages of seedling growth. Previously, many growers would leave multiple short shoots that were not well-developed, believing they could help the plant grow. However, this often led to uneven vine development. In reality, the main vine should be encouraged to grow strong and straight, while secondary vines are kept at a minimal level. By removing all the short, unproductive branches, we allow the main vine to stretch out more effectively. Then, we leave only two nodes on the main vine, about 33 cm apart, and from each node, we let one vine grow. This method results in a clear structure with one dominant main vine and two supporting side vines. The main vine becomes thick and vigorous, producing strong female flowers that develop into large, healthy watermelons. Meanwhile, the two side vines focus on photosynthesis and nutrient production, which helps support the main fruit.
Second, we revised the fertilization method from a single trench system to a dual-trench system. Traditionally, farmers dug one deep furrow, placed all the fertilizer inside, and then planted the seeds on top of the ridge. This often led to over-fertilization around the seedlings, causing them to become too lush or even burn. Additionally, when the melons started to grow, their roots would spread out beyond the fertilizer zone, leading to poor nutrient absorption and smaller fruits. To solve this, we now dig two separate trenches, spaced 20-30 cm apart, and place the fertilizer in both. After forming the ridges, the watermelon plants are placed between the two fertilizer lines. This ensures that the roots can absorb nutrients evenly and steadily, without being overwhelmed. As a result, the plants grow stronger, and the fruits are larger and more consistent.
In addition to these two key improvements, several other practices have been adopted, such as better spacing, improved irrigation, and more precise timing for planting and harvesting. These combined efforts have significantly increased yields while maintaining quality. Most farmers who have tried these methods have seen impressive results. If you're looking to improve your watermelon production, I highly recommend giving these techniques a try.
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