Phosphorus balance and environmental effect of animal production in China
我国畜禽生产体系中磷素平衡及其环境效应

Phosphorus is not only an essential nutritional element for plants and animals,but it is also a significant factor in environmental pollution.Understanding phosphorus flow and balance in animal husbandry systems is very important for nutrient management on both a regional and national scale.Numerous research programs are underway to reduce pollution from animal excreta in North American and European countries such as the Netherlands,USA,Canada,Germany,Denmark,as well as in some countries of Africa.In China ...