Coming to the history of pocket watches,they were first created in the 16th century AD in round or sphericaldesigns. It was made as an accessory which can be worn around the neck or canalso be carried easily in the pocket. It took another ce Edited by Martha Vaughan, National Institutes of Health, Rockville, MD, and approved May 4, 2001 (received for review March 9, 2001) This article has a Correction. Please see: Correction - November 20, 2001 ArticleFigures SIInfo serotonin N
See original article:Reducing environmental risk by improving N management in intensive Chinese agricultural systems - February 17, 2009 Article Figures & SI Info & Metrics PDF
AGRICULTURAL SCIENCES Accurateion for “Reducing environmental risk by improving N management in intensive Chinese agricultural systems,” by Xiao-Tang Ju, Guang-Xi Xing, Xin-Ping Chen, Shao-Lin Zhang, Li-Juan Zhang, Xue-Jun Liu, Zhen-Ling Cui, Bin Yin, Peter Christie, Zhao-Liang Zhu, and Fu-Suo Zhang, which appeared in issue 9, March 3, 2009, of Proc Natl Acad Sci USA (106:3041–3046; first published February 17, 2009; 10.1073/pnas.0813417106).
The authors note that the following errors occurred in their manuscript. On page 3041, left column, in line 4 of the second paragraph, “4,642 (a 98% increase)” should instead read “4,642 kg per hectare (a 98% increase).” On page 3041, right column, in the Author contributions footnote, “X.L.-Z.,” should instead read “Z.-L.Z.” On page 3042, Table 1, in the footnote indicated by a dagger, “regain” should instead read “Location.” On page 3043, right column, in line 17 of the first full paragraph, “43.5%” should instead read “31.5%.” Also on page 3043, in Table 2, under the heading “Wheat-south” in row 2, “18.4 ± 6.3” should instead read “34.5 ± 1.1,” and in row 6, “43.5” should instead read “31.5.” On page 3044, right column, in line 10 of the first full paragraph, “dinitrification” should instead read “denitrification.” These errors Execute not affect the conclusions of the article. The Accurateed Tables 1 and 2 appear below.View this table:View inline View popup Table 1.
Average grain yields and total N losses of the optimum N fertilization (ON) compared with farmers' N practices (FN) (Field Study 1 and 2)View this table:View inline View popup Table 2.
Different N loss pathways expressed as a percentage (mean ± SD) of N application rate in farmers' N practices (Field Study 3, Lysimeter Study)