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Zhongchun Jiang, Chenping Xu, and Bingru Huang

Nitrogen is an essential mineral nutrient for plant growth and development and is often a limiting factor in maintaining high-quality putting greens on golf courses. Because of environmental concerns and decreased root growth at high N, low rates of

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

available over an extended season. Nutrient management plays an important role in plant production. Nitrogen is one of the key macronutrients required for plant growth and development. Nitrogen combines with other elements to form amino acids used in

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Yung-Liang Peng, Fang-Yin Liu, Rong-Show Shen, and Yu-Sen Chang

stem, malabar chestnut is also grown as a bonsai or pseudo bonsai tree. In East Asia, the species is known as the “money tree” and is believed to afford financial fortune and to improve business ( Li et al., 2009 ). Nitrogen is an essential element for

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Hadi Susilo, Ying-Chun Peng, and Yao-Chien Alex Chang

.5-cm pot for 5 months), Stage II (medium plant in 8.5-cm pot, 5 months), and Stage III (large plant in 10.5-cm pot, 5 months). Nitrogen is an important macronutrient that significantly affects the growth and flowering of Phalaenopsis ( Lei, 2007 ; Yu

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Adam D. Karl, Michael G. Brown, Sihui Ma, Ann Sandbrook, Amanda C. Stewart, Lailiang Cheng, Anna Katharine Mansfield, and Gregory M. Peck

attributes of the finished ciders to remain competitive and continue improving the quality of ciders available in the U.S. market. Nitrogen fertilization is a little studied area of cider apple orchard management that potentially impacts productivity, fruit

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Desire Djidonou, Xin Zhao, Karen E. Koch, and Lincoln Zotarelli

For most crop species, nitrogen (N) is an essential plant nutrient with the greatest influence on growth and development because it is a constituent of chlorophyll, amino acids, proteins, nucleic acids, and cell walls ( Fageria, 2009 ). Because N

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Yin-Tung Wang and Yao-Chien Alex Chang

Nitrogen is one of the most essential mineral elements that plants need to grow and reproduce well. Low N can result in slow plant growth, pale-green leaves, abscission of the lower leaves, reduced flower count, and low productivity. Rate of N Lee

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Fang Xu, Junqin Zong, Jingbo Chen, Jianjian Li, Dandan Li, Jianxiu Liu, and Fang Xu

With the increase of industrial and domestic sewage and agricultural fertilizers emissions, nitrogen (N), phosphorus (P), and other nutrients discharged into the lake are constantly increasing, making more and more lakes eutrophic ( Lian et al

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Warren E. Copes, Andrew Ristvey, Patricia A. Richardson, Bruk E. Belayneh, Haibo Zhang, John Lea-Cox, and Chuanxue Hong

., 2011 ; Warsaw et al., 2009b ; Wilson et al., 2010 ). Nitrogen, phosphorus, EC, pH, and alkalinity levels are commonly considered basic measures of water quality, whereas the other variables may or may not be reported ( Argo and Biernbaum, 1996 ; Dole

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Pascal Nzokou and Bert M. Cregg

utilization in the photosynthetic process by the foliage ( Alam, 1999 ). Nitrogen (N) fertilization and uptake is critical for shoot and root growth. Most N taken up by crops is retained in plant tissues, where it becomes part of the plant structure and is