What kind of fertilizer is good for watermelon topdressing
This article introduces the content of green plant flower planting about what kind of fertilizer is good for watermelon topdressing, which is a very good experience and knowledge, and is recommended for collection!
What kind of fertilizer is good for watermelon topdressing
When planting watermelons, organic fertilizers can be applied, which have a long-lasting effect. Generally, well-rotted manure organic fertilizers from farmers are a good choice. During the growth period, potassium fertilizers should be applied, as potassium fertilizers are beneficial for metabolism, the formation and accumulation of carbohydrates, greatly improving the quality of watermelons. Additionally, boron fertilizers should be applied to prevent hollow watermelons and thick rind issues, enhancing fruit quality.
Timing for watermelon topdressing
First fertilization is carried out when watermelon seedlings are raised, applying human waste or urea water after the seedlings emerge. Well-rotted organic fertilizers, sulfate potassium, and superphosphate are used as base fertilizers. After transplanting, apply seedling fruit fertilizer, pour diluted urea water, apply decomposed cake fertilizer during the long vine stage, apply urea during the young fruit stage, and apply urea and sulfate potassium before maturity.
What kind of fertilizer is used for watermelon topdressing
Watermelon requires two topdressings during growth, one during the fruit expansion stage, which is after pollination, combined with watering, to apply fruit expansion fertilizer, such as nitrogen fertilizers and sulfate potassium.
1. Organic fertilizers
Organic fertilizers can be applied when planting watermelons, providing long-lasting effects. Well-rotted manure organic fertilizers from farmers are a good choice, but they must be well-rotted to avoid burning the seedlings. If there are cake fertilizers available, they are also a good choice, such as soybean meal and peanut cakes.
2. Potassium fertilizers
Watermelons have a high sugar content, so potassium fertilizers should be applied during growth, as they are beneficial for metabolism, the formation and accumulation of carbohydrates, greatly improving the quality of watermelons and increasing sugar content. After watermelons enter the fruit-setting stage, a large amount of potassium fertilizers should be supplemented, and phosphorus acid hydrogen potassium can be sprayed on the leaves.
3. Boron fertilizers
Boron fertilizers can help watermelons bloom and set fruit faster. Appropriate application of boron fertilizers can also prevent hollow watermelons and thick rind issues, improving the taste and quality of watermelons. For areas deficient in boron, special attention should be paid, as boron is an essential microelement, even though the demand is not large, it is indispensable.
Methods for watermelon topdressing
1. Seedling promotion fertilizer
Within one week after transplanting watermelon seedlings, if the base fertilizer has not taken effect or if base fertilizer was applied, a small amount of topdressing can be applied, mainly fast-acting fertilizers. Generally, 8-10 grams of urea per plant are applied, with furrow fertilization followed by covering with soil.
2. Vine promotion fertilizer
When the length of watermelon seedlings is between 40-60 centimeters, vine promotion fertilizers can be applied, such as urea, superphosphate, sulfate potassium, or sulfate potassium-type ternary compound fertilizers. Apply 25 to 30 centimeters away from the base of the melon roots, then cover with soil and water to promote fertilizer absorption.
Precautions for watermelon topdressing
When applying topdressings to watermelons, avoid using chlorine-containing fertilizers such as potassium chloride or ammonium chloride, as they can reduce the sugar content of watermelons and make the taste sour. Also, avoid excessive application of nitrogen fertilizers, which can cause excessive growth of vines and difficulty in fruit setting.
Do not apply concentrated fertilizers when the soil is dry, and avoid topdressing during continuous rainy days when the humidity is high, as this can cause fertilizer loss and lead to excessive vine growth, making it difficult to set fruit. Do not apply fertilizers close to the seedlings, as it can easily burn the roots, and fertilizers should not be scattered on the surface.
The above is a detailed explanation of what kind of fertilizer is good for watermelon topdressing, for reference and suggestions only!