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Wei-Ling Yuan, Shang-yong Yuan, Xiao-hui Deng, Cai-xia Gan, Lei Cui and Qing-fang Wang

radish production system in southern China. According to Yuan et al. (2014) , the optimal N application rate recommended in radish-producing area was 120 kg N/ha, but rates of 200–300 kg N/ha are common in southern China. Excessive N fertilizer

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Thomas W. Walters, John N. Pinkerton, Ekaterini Riga, Inga A. Zasada, Michael Particka, Harvey A. Yoshida and Chris Ishida

mustard seed meal (Gies Organic Products, Moses Lake, WA). This meal is a by-product of oil extraction from seeds. Application rates, methods, and dates for treatments in each of the four trials are listed in Table 1 . Table 1. Treatment list for

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Patrick E. McCullough and William Nutt

. Application dates are presented in Table 1 . Herbicide rates were selected from label recommendations for bermudagrass and the simazine treatment was chosen based on the high label rate ( Dupont, 2004 ; Monsanto, 2008 ; Syngenta, 2008 ). A broadcast

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Rebecca G. Bichsel, Terri W. Starman and Yin-Tung Wang

fertilizer application was ended at FT-1 (1 Sept. 2005) than when it was applied for an additional 30 or 60 days (two leaves; Fig. 2 ). Plants had a similar number of leaves remaining at each of the N rates from 50 to 400 mg·L −1 regardless of N termination

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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