Melon Park six measures make sweet melon sweeter

The temperature difference between day and night plays a crucial role in the development of muskmelon sweetness. A significant diurnal temperature variation helps the plant accumulate more sugars through photosynthesis during the day and reduces respiration at night, which preserves the sugars. During the fruiting stage, it's ideal to maintain a large temperature differential. Typically, daytime temperatures should be kept between 30°C and 35°C, while nighttime temperatures should range from 13°C to 14°C, resulting in a temperature difference of about 16°C to 18°C. This balance ensures optimal sugar accumulation and enhances fruit quality. In addition to temperature control, managing fertilization is key to improving sweetness. Reducing chemical fertilizer use and increasing organic matter application can significantly boost the flavor of muskmelons. Organic manure such as chicken manure and soybean cake is highly effective. It’s recommended to apply around 15 cubic meters of chicken manure per mu (approximately 667 square meters) and 100 to 150 kilograms of soybean cake. These organic materials not only improve soil structure but also provide slow-release nutrients that support long-term plant health. However, it's important to note that excessive potassium application in soils with low potassium levels may actually reduce sweetness. Therefore, during the growing period, both nitrogen and potash fertilizers should be used in moderation. In the early stages, applying 8 to 10 kilograms of potassium fertilizer per mu or 20 kilograms of high-potassium compound fertilizer can help enhance fruit quality without overloading the plant. Water management is another critical factor. Excessive water during the ripening phase can dilute sugars and even cause "water rot" in the fruit. Especially in the 10 days before maturity, it's essential to control irrigation to concentrate the sugars and improve flavor. Proper watering practices ensure the melon reaches its full potential in terms of taste and texture. Light exposure is equally important. Ensuring that the plants receive enough sunlight by keeping the greenhouse film clean and removing shaded leaves can improve photosynthesis efficiency. Better light penetration increases the overall energy available for fruit development, leading to sweeter and more flavorful melons. Finally, timing of harvest greatly affects sweetness. Muskmelons generally take 30 to 35 days to fully mature, during which time sugar content builds up significantly. However, many farmers tend to harvest earlier to meet market demands, which results in underdeveloped, less sweet fruits. Harvesting at the right time is one of the most fundamental steps in ensuring high-quality, sweet muskmelons. By following these practices, growers can maximize both yield and flavor.

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