浒苔制作有机肥研究

目的]摸索以浒苔为原料制作有机肥的技术条件,观测其施用效果。方法]以浒苔为主料,用不同比例的秸秆、鸡粪、污泥调整含水量、有机质和碳氮比进行堆肥发酵,观测、比较堆肥温度变化、有机质和N、P、K含量及卫生学等指标。在作物栽培试验中,观测浒苔有机肥对种子发芽、盆栽和田间生菜生长的影响。结果]单独用浒苔为原料制作有机肥,总养分含量偏低,而用麦草、鸡粪、污泥和浒苔混合堆肥时,总养分含量提高,且产品中有害元素含量符合国家标准。浒苔含量不超过50%,经调配使有机质、含水量、碳氮比分别控制在35%、55%和30左右,该条件下的堆肥产物对种子发芽无明显毒性,并可显著促进生菜生长。结论]以浒苔为主料制作的有机肥促进作物生长效果显著。

Study on the Preparation of Organic Fertilizer with Enteromorpha prolifera

Objective] The aim was to grope for the technical conditions of organic fertilizer preparation with Enteromorpha prolifera,and observe its applied effect. Method] In compost fermentation experiments,Enteromorpha prolifera fronds were mixed with straws,chicken manure and surplus sludge under several dosing ratios to modulate the key indexes (water and organic matter content,C/N ratio) of the compost mixtures. Then,the temperature rising,organic matter and NPK content and hygienic indexes of compost ferment...