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Mary Jane Clark and Youbin Zheng

roof system. Fig. 2. Proportion vegetative coverage of green roof modules after fertilization on 29 Aug. 2011 with 5, 10, 15, 20, 25, 30, or 35 g·m −2 nitrogen (N) or unfertilized (Control). Data are means ± se (n = 3). Module production was

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Qiang Xiao, XiaoHui Fan, XiaoHui Ni, LiXia Li, GuoYuan Zou, and Bing Cao

brackets) of porous pouches containing PCRFs buried 15 cm deep in the root-zone soil beneath the surface of black polyethylene mulch–covered beds of either a tomato or a cucumber crop during 2015 in Beijing. Samples of pouches were retrieved for analysis of

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Bruce L. Dunn and Carla Goad

irrigations. Pots were hand-watered at a rate that allowed media saturation and ≈20% leaching. Nitrogen treatments were designed to produce plants with N status ranging from deficient to excessive with 0, 0.75, 1.5, and 2.25 g N rates. SPAD, atLEAF, plant

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Ty A. McClellan, Roch E. Gaussoin, Robert C. Shearman, Charles S. Wortmann, Martha Mamo, Garald L. Horst, and David B. Marx

greens were constructed in sequential years from 1997 to 2000 following USGA specifications ( USGA Green Section Staff, 1993 ). Treatments included two root zone mixtures—80:20 (v:v) sand and sphagnum peat mixture and an 80:15:5 (v:v:v) sand, sphagnum

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Aaron Heinrich, Richard Smith, and Michael Cahn

at a density of 2–3.5 million seeds/acre. Biomass samples were collected one to five times during the crop cycle from each site; samples were collected from a 15-ft 2 area and replicated three to four times. The entire plant was collected (including

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Giuseppe Colla, Carolina María Cardona Suárez, Mariateresa Cardarelli, and Youssef Rouphael

. Discussion Selection of commercial melon rootstocks with more advantageous nitrogen use efficiency traits. The description of productive behavior by SDW response curves in response to increasing the nitrate concentration (from 0.5 to 15 m m ) in the

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Mindy L. Bumgarner, K. Francis Salifu, Michael V. Mickelbart, and Douglass F. Jacobs

and dimensions of 6.4 cm × 25 cm (diameter × length) (D40 Deepot; Stuewe and Sons, Tangent, OR) in a 60% peatmoss:40% perlite soilless mix on 7 May 2007. Osmocote Plus (15N–9P–12K) 5-6 month controlled-release fertilizer (The Scotts Company, Marysville

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Sohrab Davarpanah, Ali Tehranifar, Gholamhossein Davarynejad, Mehdi Aran, Javier Abadía, and Reza Khorassani

, Berkeley, CA Cheng, L. Xia, G. Lakso, A. Goffinet, M. 2007 How does nitrogen supply affect ‘Gala’fruit size? New York Fruit Quarterly 15 3 5 Choi, S.T. Park, D.S. Ahn, G.H. Kim, S.C. Choi, T.M. 2013 Foliar-application effects of urea and potassium phosphate

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William D. Afton, Kathryn K. Fontenot, Jeff S. Kuehny, and Carl E. Motsenbocker

) and drip-tape [emitters on 12-inch centers (Netafim, Fresno, CA)] were installed. Pronamide the active ingredient in Kerb (Dow AgroSciences, Indianapolis, IN) was applied for preemergent weed control in the row middles at a rate of 1.5 lb/acre a

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Thomas G. Bottoms, Timothy K. Hartz, Michael D. Cahn, and Barry F. Farrara

biomass N. Thus, total crop N uptake in the monitored fields was estimated to average ≈225 kg·ha −1 N by 15 Sept. Fig. 2. Aboveground crop biomass nitrogen (N) accumulation (vegetative tissue and marketable fruit) over the growing season in seven