农家肥是农作物不可缺少的肥料,是农业生产的主要肥源。但若贮存使用方法不当,其中的养分很容易挥发、流失和有效性不高,会大大的降低肥效。下面简要介绍几种提高农家肥肥效的实用方法,供参考。(一)加过磷酸钙。在每100公斤人粪尿中加入5公斤过磷酸钙,搅拌均匀,存放5～10天,能使人粪尿中容易挥发的碳酸铵转化为性质稳定的磷酸铵。从而防止氮素挥发损失,达到以磷保氮目的,同时还增加了人粪尿中磷素的含量,提高了肥料的质量;在厩肥、堆 Manure is an indispensable fertilizer for crops and is the main source of fertilizer for agricultural production. However, if improper storage and use, of which nutrients are easily volatile, loss and effectiveness is not high, will greatly reduce fertilizer. The following is a brief introduction of several practical ways to improve the effectiveness of farmyard fertilizer for reference. (A) plus over calcium phosphate. In every 100 kg of human excrement by adding 5 kg of superphosphate, stir, stored for 5 to 10 days, can make human excrement easily volatile ammonium carbonate into stable ammonium phosphate. So as to prevent the loss of nitrogen volatilization, to achieve the purpose of nitrogen retention of phosphorus, but also increase the content of phosphorus in human excrement and improve the quality of fertilizers; in manure, heap