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3. Effect of poultry wastewater irrigation on nitrogen, phosphorus and carbon contents in farmland soil

Author

Zhang Yan, Tianhong Shi, Jing Qingchuan, Xiang-Fa Wei, Fu Chunyan, Liu Xuelan, Yan Peipei, Xinhua Li, and Dong Yilei

Subjects
Irrigation, Chemistry, growth, chemistry.chemical_element, 04 agricultural and veterinary sciences, General Chemistry, 010501 environmental sciences, maize, complex mixtures, 01 natural sciences, Nitrogen phosphorus, irrigation, soil, Wastewater, Environmental chemistry, 040103 agronomy & agriculture, Materials Chemistry, 0401 agriculture, forestry, and fisheries, wastewater, QD1-999, Carbon, 0105 earth and related environmental sciences
Abstract

The goal of this study was to assess the suitability of poultry wastewater for the irrigation of farmland soil as a possible substitute for regular water and fertilizers. The vertical and spatial variability of soil total nitrogen (STN), soil total phosphorus (STP) and soil organic carbon (SOC) was analyzed during the growing season of summer maize in two types of soil: an experimental group (EG) soil, irrigated once only with poultry wastewater, and a control group (CG) soil, irrigated once only with regular water. Results revealed no difference in STP concentration, SOC concentration, nitrogen storage and phosphorus storage between EG and CG soils (all p>0.05); STN concentration in the 5–15 cm layer and carbon storage were higher in EG soil (p

Published
2018

5. The glymphatic system: a new perspective on brain diseases.

Author

Ding Z, Fan X, Zhang Y, Yao M, Wang G, Dong Y, Liu J, and Song W

Abstract

The glymphatic system is a brain-wide perivascular pathway driven by aquaporin-4 on the endfeet of astrocytes, which can deliver nutrients and active substances to the brain parenchyma through periarterial cerebrospinal fluid (CSF) influx pathway and remove metabolic wastes through perivenous clearance routes. This paper summarizes the composition, overall fluid flow, solute transport, related diseases, affecting factors, and preclinical research methods of the glymphatic system. In doing so, we aim to provide direction and reference for more relevant researchers in the future., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Ding, Fan, Zhang, Yao, Wang, Dong, Liu and Song.)

Published
2023
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