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Xue Xie, Yulin Liao, Yanhong Lu, Jianglin Zhang, Peng Li, Youyun Tang, Weidong Cao, Yajie Gao and Jun Nie
The excessive application of chemical fertilizers in rice fields exacerbates soil degradation and poses a threat to food security. Achieving an increase in rice production and minimizing environmental costs are inevitable requirements for achieving susta...
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Shun Zou, Chumin Huang, Yang Chen, Xiaolong Bai, Wangjun Li and Bin He
Nitrogen (N) and phosphorus (P) play crucial roles in tea planting, but information on how the long-term excessive application of chemical N fertilizer affected N and P in subtropical tea plantations remains limited. In this study, soil and leaf samples ...
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Meng Zhou, Yang Xiao, Leilei Xiao, Yansheng Li, Xingyi Zhang, Richard M. Cruse and Xiaobing Liu
Mollisols include an abundance of soil organic carbon (SOC) which is easily influenced by fertilization management. Manure addition could enhance soil aggregate stability; however, the dominating factor affecting its stabilization remains controversial. ...
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Nadezhda Petkova, Ani Petrova, Ivan Ivanov, Ivanka Hambarlyiska, Yulian Tumbarski, Ivayla Dincheva, Manol Ognyanov and Petko Denev
This research aimed to reveal the chemical composition of different fractions obtained by sequential extraction of purple coneflower (Echinacea purpurea) roots and to evaluate the antimicrobial activity of some of them. Hexane, chloroform, ethyl acetate,...
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Miguel Castilla-Barbosa, Orlando Rincón-Arango and Manuel Ocampo-Terreros
The zeta potential of soils is an electric potential in the double-layer interface and is a physical property exhibited by any particle related to electrochemical attractive forces. On the other hand, the chemical aging phenomenon is seen as the chief me...
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Jingjing Zhang, Jiong Wen, Tuo Zhang, Yang Zhang, Zhi Peng, Chunchun Tang, Yanan Wang, Shiming Su, Nan Zhang and Xibai Zeng
A better understanding of the P dynamic resupply roles of fertilization from soil solids to solution is urgently required to optimize sustainable P fertilizer management practices for efficient supply. A five?year fertilization experiment was used to inv...
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Mohamed Ismail Moustafa
One of the most extensively studied topics in dozens of studies is the alteration process of ilmenite, the formation of leucoxene, and the presence of some impurity oxides: SiO2 and Al2O3. The altered Egyptian black sand ilmenite grains of relatively low...
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Carina A. E. Costa, Filipa M. Casimiro, Carlos Vega-Aguilar and Alírio E. Rodrigues
Lignin is a raw material that can potentially be converted into valuable compounds through depolymerization reactions in addition to its use as a polymer or material. However, the chemical recalcitrance and the heterogeneous composition and structure of ...
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Leandro Israel da Silva, Marlon Correa Pereira, André Mundstock Xavier de Carvalho, Victor Hugo Buttrós, Moacir Pasqual and Joyce Dória
Phosphorus (P) is one of the essential macronutrients for plant growth, being a highly required resource to improve the productive performance of several crops, especially in highly weathered soils. However, a large part of the nutrients applied in the f...
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Tingting Cui, Jianbing Zhang and Weiqun Luo
There were some ecological and environmental problems in limestone soil in the karst peak-cluster depression in Pingguo City of Guangxi, such as the destruction of soil structure, soil acidification and soil fertility decline, and these problems were clo...
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