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M. Lenny Wells

orchard area. Worley (1997) observed that pecan yield, quality, and leaf N could be maintained with dry fertilizer applications when the full N rate was concentrated in a limited area, yet no studies have attempted to refine this practice by simply

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Timothy W. Miller and Carl R. Libbey

. Paraquat applied to foliage at middle or late timings did not cause injury at the February or March evaluations. Table 2. Percentage of chlorosis in ‘Flower Carpet’ narcissus foliage at emergence following application of paraquat at two rates and three

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George E. Boyhan, Ray J. Hicks, Reid L. Torrance, Cliff M. Riner and C. Randell Hill

not differ between different poultry litter rates; however, medium (≥2 and <3 inches diameter) yields had significantly lower yields with increasing poultry litter rates. Fig. 1. Effect of poultry litter application on total (jumbo + medium + culls

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Sudeep S. Sidhu, Qingguo Huang, Robert N. Carrow and Paul L. Raymer

greenhouse conditions, decreases in the rate of thatch layer build-up and accumulations of total organic matter in the top 2.5 cm of creeping bentgrass were reported in response to the direct application of laccase, an extracellular lignolytic enzyme produced

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Ethan T. Parker, J. Scott McElroy and Michael L. Flessner

rates and application timings of many of these herbicides as well ( Busey, 2003 ; Cudney et al., 1997 ; Dernoeden, 1987 ; Mueller-Warrant, 1990 ; Neal et al., 1990 ; Warren et al., 1989 ). Currently, only bensulide and oxadiazon are explicitly

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Gitta Shurberg, Amy L. Shober, Christine Wiese, Geoffrey Denny, Gary W. Knox, Kimberly A. Moore and Mihai C. Giurcanu

from residential land uses was 256% greater than the exports from wooded sites. Although fertilizer is not the sole contributor to N and P exports from residential landscapes, fertilizer management practices (e.g., application rates, timing of

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Bryant C. Scharenbroch

impacts of ACT on examined tree growth. These studies have rarely compared ACT with water, which is known to be a major limiting factor for tree growth (e.g., Scharenbroch et al., 2011 ). Furthermore, no standards exist for application rates of ACT to

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Clinton J. Hunnicutt, Andrew W. MacRae and Vance M. Whitaker

Doohan conducted trials with clopyralid application rates ranging from 25 to 400 g·ha −1 applied as a postharvest spray in a perennial strawberry production system. Common groundsel ( Senecio vulgaris ) control of 82% was achieved when clopyralid was

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Rita L. Hummel, Marianne Elliott, Gary Chastagner, Robert E. Riley, Kathy Riley and Annie DeBauw

fertilization and irrigation strategies nurseries can follow to prevent environmental contamination. In addition to reducing the potential for N pollution, lower N applications may reduce the incidence of plant disease. Under some conditions, high N rates have

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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