What is the best fertilizer for growing watermelons? Detailed solution explained
Watermelon is a common economic crop. Mastering proper fertilization techniques can not only increase the yield of watermelons, but also enhance their quality and sweetness. What is the best fertilizer to use for growing watermelons?
What is the best fertilizer for growing watermelons - the base fertilizer?
Base fertilizer is the core of nutrient supply throughout the entire growth period of watermelons. It is usually applied during land preparation. It is recommended to use organic fertilizers as the main source, combined with the use of microbial agents with high activity of the eight major bacterial groups. This can improve soil structure, accelerate the decomposition of organic matter, and ensure nutrient absorption. Additionally, adding low-molecular-weight catalytic enzymes and calcium magnesium is more suitable for bottom application as a calcium and magnesium fertilizer, which can supplement trace elements and meet the balanced nutritional needs of watermelons, thereby increasing yield and quality.
What is the best fertilizer for growing watermelons - during the seedling stage and the vine expansion stage?
During the seedling stage of watermelon, fertilization should aim to promote root growth and strong seedling development, avoiding excessive nitrogen which can cause excessive growth. At this time, a moderate amount of rooting agent can be applied to promote the development of the seedling's root system and enhance the crop's adaptability, laying a foundation for nutrient absorption and the cultivation of strong seedlings.
During the vine growth stage, crops grow rapidly and their leaves increase rapidly. When applying fertilizers, it is recommended to use a large amount of water-soluble fertilizer that lowers salt content and adjusts pH levels. At the same time, both macronutrients and micronutrients should be supplemented. The nutrients are balanced. The chelated salt enhancement technology can be adopted for production. This not only provides nutrients for the crops but also regulates the soil pH level, improves the soil quality, reduces the soil salt index, enhances the crop's resistance to salt and alkalinity, and strengthens the crop's adaptability.
What is the best fertilizer for growing watermelons - during the flowering and fruiting period?
At this stage, fertilization should aim to ensure flower bud differentiation and increase the fruit setting rate. It is recommended to apply a powder form of phosphoric acid potassium dihydrogen phosphate and boron fertilizer on the leaves, in two consecutive applications.
What is the best fertilizer for growing watermelons - during the fruit enlargement stage?
During this period, potassium fertilizer should be the main component, combined with appropriate amounts of nitrogen fertilizer and phosphorus fertilizer to promote the development of fruits and the accumulation of sugar. It is advisable to apply high-potassium fertilizers with a small amount of balanced water-soluble fertilizers for salt reduction and pH adjustment. At the same time, pay attention to supplementing trace elements such as calcium. Calcium fertilizer and amino acid-based foliar fertilizers can be sprayed during the early fruit stage to prevent scab and cracking, and improve crop quality.
