What exactly are the harmful effects of using duck manure?

The organic matter and nitrogen and phosphorus content in duck manure are relatively high, and crops cannot absorb them directly. Fresh duck manure will attract underground pests. Not only does it fail to help crops, but it also slows their growth.

How to handle fresh poultry manure

1. Poultry manure mainly refers to the excrement of chickens, ducks, geese, and others. Among the various types of poultry, chickens and ducks feed on insects, fish, grain, grass, and so on, so the organic matter and nitrogen and phosphorus content in chicken and duck manure is higher than that in livestock and goose manure. Geese are herbivorous poultry, and their nutrient content and proportions are close to those of livestock, so their quality is not as good as chicken and duck manure.

2. The nitrogen in poultry manure is mainly in the form of uric acid, which crops cannot absorb directly. Its fertilizer effect on the current season's crops is equivalent to 50% of that of nitrogen fertilizer, but it has an obvious residual effect. Applying fresh poultry manure often attracts underground pests, so it must be applied after decomposition. Decomposed poultry manure is a high-quality quick-acting organic fertilizer, often used as a base fertilizer and topdressing for vegetables or cash crops. It can not only increase yield, but also improve the quality of agricultural products.