Institution
The Hertz Corporation
About: The Hertz Corporation is a based out in . It is known for research contribution in the topics: Population & Soil water. The organization has 9562 authors who have published 11044 publications receiving 447929 citations. The organization is also known as: Hertz Rental Car & Hertz Rent-a-Car.
Topics: Population, Soil water, Natural rubber, Virus, Hordeum vulgare
Papers published on a yearly basis
Papers
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TL;DR: The Global Burden of Diseases, Injuries, and Risk Factors Study 2015 (GBD 2015) as discussed by the authors was used to estimate the incidence, prevalence, and years lived with disability for diseases and injuries at the global, regional, and national scale over the period of 1990 to 2015.
5,050 citations
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TL;DR: In this paper, a direct extraction method for measuring soil microbial biomass nitrogen (biomass N) is described, which is based on CHC13 fumigation, followed by immediate extraction with 0.5 M K2SO4 and measurement of total N released by CHC 13 in the soil extracts.
Abstract: A new “direct extraction” method for measuring soil microbial biomass nitrogen (biomass N) is described. The new method (fumigation-extraction) is based on CHC13 fumigation, followed by immediate extraction with 0.5 M K2SO4 and measurement of total N released by CHC13 in the soil extracts. The amounts of NH4-N and total N extracted by K2SO4 immediately after fumigation increased with fumigation time up to 5 days. Total N released by CHC13 after 1 day fumigation (1 day CHC13-N) and after 5 days fumigation (5 day CHC13-N) were positively correlated with the flush of mineral N (FN) in 37 soils that had been fumigated, the fumigant removed and the soils incubated for 10 days (fumigation-incubation). The regression equations were 1 day CHC13-N = (0.79 ± 0.022) FN and 5 day CHC13-N = (1.01 ± 0.027) FN, both regressions accounting for 92% of the variance in the data. In field soils previously treated with 15N-labelled fertilizer, the amounts of labelled N, measured after fumigation-extraction, were very similar to the amounts of labelled N mineralized during fumigation-incubation; both were about 4 times as heavily labelled as the soil N as a whole. These results suggest that fumigation-extraction and fumigation-incubation both measure the same fraction of the soil organic N (probably the cytoplasmic component of the soil microbial biomass) and that measurement of the total N released by CHC13 fumigation for 24 h provides a rapid method for measuring biomass N.
4,631 citations
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2,583 citations
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TL;DR: In this paper, a new method for the determination of biomass in soil is described, which is calculated from the difference between the amounts of CO2 evolved during incubation by fumigated and unfumigated soil.
Abstract: A new method for the determination of biomass in soil is described. Soil is fumigated with CHCl3 vapour, the CHCl3 removed and the soil then incubated. The biomass is calculated from the difference between the amounts of CO2 evolved during incubation by fumigated and unfumigated soil. The method was tested on a set of nine soils from long-term field experiments. The amounts of biomass C ha−1 in the top 23 cm of soil from plots on the Broadbalk continuous wheat experiment were 530 kg (unmanured plot), 590 (plot receiving inorganic fertilizers) and 1160 (plot receiving farmyard manure). Soils that had been fallowed for 1 year contained less biomass than soils carrying a crop. A calcareous woodland soil contained 1960 kg biomass C ha−1, and an unmanured soil under permanent grass 2020. The arable soils contained about 2% of their organic C in the biomass; uncultivated soils a little more—about 3%.
2,537 citations
Authors
Showing all 9562 results
Name | H-index | Papers | Citations |
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Pete Smith | 156 | 2464 | 138819 |
J. H. Hough | 117 | 904 | 89697 |
Christine H. Foyer | 116 | 490 | 61381 |
Steve P. McGrath | 115 | 483 | 46326 |
Nial R. Tanvir | 112 | 877 | 53784 |
Fang-Jie Zhao | 107 | 372 | 39328 |
Martin R Turner | 98 | 503 | 34965 |
Peter R. Shewry | 97 | 845 | 40265 |
Helen E. Heslop | 97 | 523 | 36292 |
Stephen E. Harris | 95 | 421 | 46780 |
Brian C. J. Moore | 93 | 711 | 38036 |
Ken E. Giller | 92 | 555 | 36374 |
Kingston H. G. Mills | 92 | 313 | 29630 |
Alex B. McBratney | 92 | 552 | 34770 |
David M. Glover | 92 | 301 | 24620 |