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Longyi Yuan, Deying Li, Yang Gao, and Wenjing Xiao

salts produced more turf injury than calcium chloride (CaCl 2 ), potassium chloride (KCl), urea/CaCl 2 (30%/70%), or NaCl/KCl (50%/50%) following applications of equal rates. After evaluating spring survival levels of 75 cool-season turfgrass cultivars

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Xiaojie Zhao, Guihong Bi, Richard L. Harkess, Jac J. Varco, and Eugene K. Blythe

. Increasing N application rate influences plant growth ( Bi et al., 2007 ), leaf CO 2 assimilation ( Cheng and Xia, 2004 ), and uptake and allocation of other nutrients ( Scagel et al., 2008 , 2012 ). However, excessive N fertilizer application results in

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Mokhles A. Elsysy, Andrew Hubbard, and Todd C. Einhorn

separated by a minimum of one guard tree to decrease the risk of spray drift. Rates were applied as follows, 1) 0 ppm (control), 2) 150 ppm metamitron, 3) 300 ppm metamitron, and 4) 600 ppm metamitron. Two application timings were evaluated on separate trees

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Xunzhong Zhang, Mike Goatley, Jamie Conner, Megan Wilkins, Inna Teshler, Jun Liu, Michael Fefer, and Wenzi Ckurshumova

.05 level. Results Photosynthetic rate. Drought reduced Pn. Soil drench plus foliar application of B18-0074 and B18-0075 improved Pn at days 7, 14, and 21 ( Table 1 ). Foliar application of the two products also improved Pn at days 14 and 21. The B18

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Smiljana Goreta, Daniel I. Leskovar, and John L. Jifon

(fourth and eighth day). Vertical bars indicate mean ± se (n = 5–7). Net CO 2 assimilation rate measured before treatment applications was 20.5 μmol·m −2 ·s −1 , (not shown) and after 24 h of withholding water it stayed in the range of 17.7 to

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Yuan Li, Arend-Jan Both, Christian A. Wyenandt, Edward F. Durner, and Joseph R. Heckman

-less products. Both conventional and organic growers are interested in the types and application rates of approved Si materials that can adequately address disease problems. Acquiring naturally derived and approved organic sources of Si for organic production

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S. Alan Walters

1.46 L·ha −1 to provide insect control for the first 30 d after application. Diseases and insects were controlled by spraying recommended rates of esfenvalerate (Asana XL; E.I. du Pont de Nemours, Wilmington, DE), chlorothalonil (Bravo WeatherStik

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Zhihui Chang, Laiqiang Zhuo, Fangfang Yu, and Xunzhong Zhang

rewatering ( Table 1 ). Biosolids application at 1× N rate improved RWC compared with the control as measured during drought stress (4, 10, and 16 July). Biosolids application at 1× N rate and 0.5× N rate also reduced leaf wilting relative to the control

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May Elfar Altamimi, Rhonda R. Janke, Kimberly A. Williams, Nathan O. Nelson, and Leigh W. Murray

hydrolysate (Neptune’s Harvest, Gloucester, MA) with 2N–1.72P–0.83K diluted at each application to get the exact N concentration for different rates (except for the control). This resulted in ranges of 27 to 387 mg·L −1 P and 13 to 123 mg·L −1 K ( Table 2

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Theodore P. McAvoy and Joshua H. Freeman

high rate (561 L·ha −1 ) under VIF for 22 d. Four weeks after fumigation application, there were differences in fumigant retention level between treatments; however, they were negligible at such low concentrations. The VIF treatment (561 L·ha −1