What fertilizer to use for watermelon

When planting watermelons, you must apply sufficient base fertilizer. If the soil fertility is insufficient, apply more fertilizer. In areas with more fertile soil, apply less fertilizer. After germination and growth, apply fertilizer according to the growth status. Apply fertilizer when 3-4 true leaves grow in the seedling stage, apply fertilizer again during the vine extension period, and apply fertilizer during the fruit expansion period after flowering. In the later growth stage, add nutrients appropriately according to the growth status of the watermelon.

Fertilizer for pepper

Fertilizers used for watermelon are mainly divided into two categories, mainly base fertilizer and top dressing. Base fertilizer is mainly used to meet the early growth needs of melon seedlings, promote vine growth, flower bud differentiation, and strengthen seedlings. Top dressing can be divided into root top dressing and foliar top dressing. Root top dressing is the main method, and foliar top dressing is supplementary.

1. Seedling stage

The seedling stage is from the time the watermelon seedlings are transplanted and planted to the time they grow 5-7 leaves. During this period, topdressing can promote root development and accelerate the growth of the above-ground part. However, the amount of topdressing should not be too much, especially nitrogen fertilizer should be appropriate to avoid causing the seedlings to grow too tall.

2. Extension period

When the watermelon enters the vine extension period, from the time the watermelon grows 5-6 leaves to the time the second female flower blooms, topdressing during this period should be a combination of promotion and control, which should not only promote the rapid growth of stems and leaves, but also prevent and control excessive fertilizer and water from causing the vines to grow too long.

3. Fruiting period

Generally speaking, when the young watermelon fruits grow to the size of eggs, you can start applying fruit-bearing fertilizers, mainly decomposed human manure and urine, to promote the enlargement of the young fruits and ensure the growth of the vines. When the young watermelon fruits grow to 15 cm to 20 cm in thickness, apply the second fruit-bearing fertilizer. 7-10 days before harvest, you should stop applying fertilizers to improve the quality of the watermelon fruit.

Pepper fertilization method

When planting watermelon, first of all, when applying base fertilizer, you must choose the appropriate type and amount to meet the growth of the seedlings. The growth rate of watermelon seedlings is very fast, and the demand for nutrients is large. The types of nutrients required include macroelements such as nitrogen, phosphorus, and potassium, medium and trace elements such as calcium, boron, zinc, and rich organic matter. Therefore, when choosing base fertilizer, you must add various types of fertilizers such as compound fertilizer, organic fertilizer, and medium and trace element fertilizer. If the base fertilizer is insufficient, the seedlings will grow slowly and the nutrition accumulation will be insufficient, resulting in a short growth period, weak growth, and very few flowering and fruiting, which will seriously affect the yield and quality of watermelon and reduce production efficiency.