With the entry of watermelon vine growing season, the demand for fertilizer gradually increases. At this time, fertilization should aim at promoting vine growth and increasing leaf area to prevent short-term growth. With the rapid expansion, the fertilizer of plants should gradually reach the peak of the whole growing season. At this time, cucumber should be fertilized to promote expansion and prevent premature aging. When watermelon grows, reduce the amount of nitrogen application, moderately increase the amount of potassium fertilizer, topdressing 15 ~ 20g, especially in the later stage of plant growth, inhibit watermelon nitrogen absorption. At this time, excessive nitrogen intake will deteriorate the quality of watermelon. Apply quick acting chemical fertilizer immediately to maintain the vigorous growth of grape vines and leaves and prevent premature aging.
正在翻译中..