Title Effects of using wastewater as nutrient sources on soil chemical properties in peri-urban agricultural systems

Reusing domestic wastewater for irrigation and applying biosolids as a fertiliser in crop production are common practices in peri-urban areas of Vietnam. This study investigates the effects of using domestic wastewater in field experiments on Fluvisols soils in peri-urban areas of Hanoi and Nam Dinh cities. We compared long-term (30-50 years) wastewater-irrigated rice-dominated farming systems. Using wastewater for irrigation significantly affected pH, electrical conductivity (EC), exchangeable K and Na and reverse aqua regia-digestible (Rev Aq Reg) copper (Cu), lead (Pb) and zinc (Zn) in the investigated areas compared with control plots irrigated using river water. There were no significant effects of wastewater irrigation on the NH4NO3-extractable fraction of cadmium (Cd) and other trace metals, but the EDTA-extractable fraction of Cu, Pb and Zn was significantly increased
http://repository.vnu.edu.vn/handle/11126/5012

Nhận xét

Bài đăng phổ biến từ blog này

Ai tạo ra vũ trụ này?

NGHIÊN CỨU SỰ MỌC VÀ HÌNH THÀNH QUẢ THỂ NẤM CỐC LỚN CLITOCYBE MAXIMA (GARTN. EX MEY.:FR) QUÉL

Thế giới nhân vật trong truyện ngắn Ma Văn Kháng từ 1986 tới nay