In summer, greenhouses are typically ventilated around the clock, which significantly reduces the risk of ammonia gas buildup from chicken manure. Due to its rich nutrient content, chicken manure is an excellent choice for top-dressing. However, it's essential to follow proper guidelines to maximize its benefits and avoid potential issues.
The amount and method of application should be both scientific and practical. When using chicken manure as a top-dressing, it’s common to apply it by watering. A recommended rate is about 200–300 kilograms per acre. To make the process more efficient, you can build a small concrete pit at the entrance of the greenhouse, with a small opening at the bottom. When applying, simply pour the chicken manure into the pit, and let it flow through the opening into the planting area. It's best to carry out this task in the morning to allow sufficient time for absorption and reduce the risk of overheating during the day.
Before applying, it's crucial to fully decompose the chicken manure. One effective way is to dig a large pit outside the shed, place the manure inside, and cover it with plastic film. After 20–30 days, the material will be well-decomposed and safe for use. Alternatively, you can use biological decomposition agents like Radiator Antibiotic 968 to speed up the process and improve the quality of the compost.
It’s also important to combine chicken manure with other fertilizers. While it's high in organic matter and provides good long-term soil benefits, it’s relatively low in nitrogen, phosphorus, and potassium. Therefore, additional fertilization is necessary, especially during the fruiting stage of crops like eggplants. For example, when applying chicken manure, you can mix in 8–10 kilograms of potash per mu to ensure adequate potassium supply and promote better yield and quality.
By following these steps, farmers can safely and effectively utilize chicken manure as a natural fertilizer, enhancing soil fertility while maintaining environmental sustainability.
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