Đánh giá hiệu quả của một số loại chất thải làm nguyên liệu trong sản xuất trùn quế

Abstract

Survey results are four types of fresh waste (cow waste, goat waste, extracted coconut  flesh and soybean curd residuce) showed  that earthworm used cow waste, goat waste, extracted coconut flesh and didn’t eat soybean curd residuce.

Results of experiments kinds of food for earthworm showed that goat waste mixed with extracted coconut  flesh by  proportion 1:1 increased earthworm biomass and waste, organic matter content. Eartlworm eating goat waste made it waste has highest nitrogen (NH₄⁺: 83,3 mg/kg; NO₃: 365,6 mg/kg). Earthworm eating goat waste made it waste has highest phosphorus and potassium (%P₂O₅: 1,062; %K₂O: 1,206).

Keywords: Perionyx excavatus, cow wast, goat wast, extracted coconut flesh.