When to plant watermelon seeds
The editor answers for the netizens when to plant watermelon seeds and shares the introduction of green plant and flower cultivation techniques, followed by detailed content sharing.
The most important factor for watermelon to sell well is the sweetness of the watermelon, which is related to its sugar content. The higher the sugar content, the sweeter the watermelon. The sugar content of watermelon is associated with its variety and cultivation methods, with high sugar content varieties being sweeter. During cultivation, improving the photosynthesis efficiency of the plant, promoting the formation of organic matter, and its conversion to sugar can increase the sweetness of watermelon. Below are the specific methods compiled by the editor of the Huinong Network to increase the sweetness of watermelon, let's take a look together.
Key points of planting methods to increase the sweetness of watermelon:
① Choose sandy loam soil with high potassium content for planting watermelon.
If the soil is heavy, it needs to be improved to increase its permeability.
② Scientific fertilization
Mainly based on base fertilizer and organic fertilizer, with a small amount of topdressing, supplemented with boron and zinc fertilizers, the ratio of nitrogen, phosphorus, and potassium should be 3:1:2. Spraying foliar fertilizer appropriately during the vine stretching period, reducing nitrogen fertilizer and increasing potassium fertilizer during the fruit expansion period, and avoiding excessive application of nitrogen fertilizer.
③ Light environment
“Sunbathe when young, cover when ripe.” Watermelon loves light. Insufficient light in the early stage can lead to slow fruit development and low sugar content, while excessive light in the later stage can easily cause fruit cracking, especially attention should be paid to prevent direct sunlight on watermelon after a summer rainstorm clears up.
④ Frequent light watering, water control before harvesting
Watermelon absorbs a large amount of water during its fruit growth period, but it is not tolerant to waterlogging. It is necessary to keep the soil moist but not flooded. If the soil moisture content is low before harvesting, the watermelon will be sweeter, and watering can be stopped about one week before the harvest.
⑤ Harvest on time
The sweetness of watermelon is highest when it is ripe. After ripening, the fruit begins to age, and its sweetness decreases, so it should be harvested promptly. In hot weather, it can be harvested 1-2 days earlier. The longer the time of early or delayed harvesting, the lower the sweetness.
For watermelon grown in greenhouses or other protected areas, methods such as increasing light intensity, enhancing day-night temperature differences, extending lighting time, and applying additional carbon dioxide can also be used to increase its sugar content.
The above is a detailed introduction to when to plant watermelon seeds and the shared techniques for cultivating watermelon. Have you understood it?