نتایج جستجو برای: soil sciences

تعداد نتایج: 320052  

2017
Julia Berazneva Linden McBride Megan Sheahan David Güereña Christopher Barrett Leah Bevis Anil Bhargava David R. Lee Bart Minten Cheryl Palm Emilia Tjernström Siobhan Murray

Bringing together emerging lessons from biophysical and social sciences as well as newly available data, we take stock of what can be learned about the relationship among subjective (reported) and objective (measured) soil fertility and farmer input use in east Africa. We identify the correlates of Kenyan and Tanzanian maize farmers’ reported perceptions of soil fertility and assess the extent ...

2015
Yanbin Li Jian Yu Wenyan Liang Li Wang Feizhen Li Yuanlong Zou Haidong Wang Rayees Ahmad Shiekh Teng Wen Xinqi Huang Jinbo Zhang Tongbin Zhu Lei Meng Ziyang Lou Bernd Bilitewski Nanwen Zhu Xiaoli Chai Bing Li Youcai Zhao Tingting Han Xingang Liu Yuanhang Zhang Yu Qu Limin Zeng Weida Wang Yali Feng Xinhua Tang Haoran Li Zhuwei Du Jian Liu Zhen Zhao Fei Yu Kai Cheng Yuechang Wei Aijun Duan Guiyuan Jiang Qifan Liu Weigang Wang Jinzhuo Zhao Cuiqing Liu Yuntao Bai Tse-yao Wang Haidong Kan Qinghua Sun Tao Jiang Guoxue Li Qiong Tang Xuguang Ma Gang Wang Frank Schuchardt Weili Lin Xiaobin Xu Xiangdong Zheng

Article history: Received 17 July 2014 Revised 23 September 2014 Accepted 29 September 2014 Available online 10 March 2015 We studied the dynamics of mercury (Hg) transfer in Phaseolus vulgaris plants grown in soil with Hg-doped compost at the maximum levels permitted by Colombian law on organic amendments. Quantitative evaluation of transfer wasmade in different plant organs: roots, stem, leav...

2008
S. Niemeyer G. Laguardia

Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract In order to evaluate the reliability of the soil moist...

Journal: :Science 1966
P E Klopsteg

Earth’s environment provides conditions conducive for life: an oxygenated atmosphere; water resources; and soil as a medium for plant growth. Environmental processes occurring on the planet govern the movement of air, energy, matter, and water. Through the study of Environmental Sciences, students will learn the science and experience the beauty of the outdoor environment. This degree program a...

2017
Jian Peng Alexander Loew

Monitoring soil moisture dynamics from local to global scales is essential for a wide range of applications. The field of remote sensing of soil moisture has expanded greatly and the first dedicated soil moisture satellite missions (SMOS, SMAP) were launched, and new missions, such as SENTINEL-1 provide long-term perspectives for land surface monitoring. This special issue aims to summarize the...

2007
S. H. Daroub J. D. Stuck T. A. Lang O. A. Diaz

1. This document is SL 197, one of a series of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published September 2002. This publication is also a part of the Florida Sugarcane Handbook, an electronic publication of the Agronomy Department. For more information you may contact the editor of the Su...

2011
Takeshi Fujii Sho Morimoto Yuko T. Hoshino Hiroaki Okada Yong Wang Haiyan Chu Seiya Tsushima

The improved methods to analyze DNA or RNA from soil enable us to study microbial diversity and functions in soil which have never been revealed by conventional culture methods. Using one of such metagenomic approaches, polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), we succeeded in monitoring the change of microbial diversity in the soil treated with a chemicals o...

2017
Joshua Ladau Yu Shi Xin Jing Jin-Sheng He Litong Chen Xiangui Lin Noah Fierer Jack A Gilbert Katherine S Pollard Haiyan Chu

1 State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China 2 Gladstone Institutes, San Francisco, CA 94158, USA 3 Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, 5 Yiheyuan Road, Be...

2007
P. Kumar G. G. Amenu

Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract One of the adaptive strategies of vegetation, particul...

2012
Kevin E. Mueller David M. Eissenstat Sarah E. Hobbie Jacek Oleksyn Andrzej M. Jagodzinski Peter B. Reich Oliver A. Chadwick Jon Chorover

Forest biogeochemical cycles are shaped by effects of dominant tree species on soils, but the underlying mechanisms are not well understood. We investigated effects of temperate tree species on interactions among carbon (C), nitrogen (N), and acidity in mineral soils from an experiment with replicated monocultures of 14 tree species. To identify how trees affected these soil properties, we eval...

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