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-term crop rotation systems. Wang et al. (p. 68) evaluated effects of four brassica and sorghum-sudangrass cover crops on nutrient cycling, weed suppression, and onion yield on a muck soil with high organic matter in Michigan. All cover crops recycled

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sustained tomato yield and quality equivalent to those obtained with conventional black polyethylene mulch. Film color was critical for weed management. White films resulted in high weed pressure, while black films provided excellent weed suppression

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James F. Cahill and Eric G. Lamb

agricultural issues such as genetically engineered crops, productivity, and weed suppression. A wide range of factors, including herbivory, mycorrhizal associations, competition, and pathogens, can simultaneously influence the growth of an individual plant

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from stable sources. Tomato Production Using Crucifer Cover Crops for Weed Suppression Bangarwa et al. (p. 764) evaluated the economics of tomato production associated with crucifer cover crops under low-density polyethylene (LDPE) and virtually

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Hamid Reza Rajablarijani, Bahram Mirshekari, Majid AghaAlikhani, Varahram Rashidi and Farhad Farahvash

the tassels of sweet corn emerge to be effective in weed suppression. Literature Cited Abdel-Rahman, A.M. Lazim Magboul, E. Nour, A.E. 2002 Effects of sowing date and cultivar on the yield and yield components of maize in northern Sudan. Proc. 7th

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Robert L. Meagher Jr., Rodney N. Nagoshi, James T. Brown, Shelby J. Fleischer, John K. Westbrook and Carlene A. Chase

, R.L. Morris, J.B. Morales-Payan, J.P. 2015 Apical dominance and planting density effects on weed suppression by sunn hemp ( Crotalaria juncea L.) HortScience 50 263 267 Cho, A.H. Chase, C.A. Koenig, R.L. Treadwell, D.D. Gaskins, J. Morris, J

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Dario Stefanelli, Roberto J. Zoppolo, Ronald L. Perry and Franco Weibel

was estimated to be 550 kg · ha −1 . Mulch was hand-applied every spring and fall to maintain a constant thickness for weed suppression and maintenance of soil moisture. No supplementary weed control was applied. The flame-burning treatment consisted

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Guangyao Wang and Mathieu Ngouajio

without affecting cucumber establishment. Therefore, the rapid growth of cucumber and the weed suppression from integration of cover crops and conservation tillage provide the rationale for reduced herbicide rates in cucumber production systems. Studies

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Maren J. Mochizuki, Anusuya Rangarajan, Robin R. Bellinder, Harold M. van Es and Thomas Björkman

relationship between soil quality and crop productivity across three tillage systems in south central Honduras Amer. J. Alt. Agr. 17 2 8 Stivers-Young, L. 1998 Growth, nitrogen accumulation, and weed suppression by fall cover

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David Granatstein and Kent Mullinix

spoiled hay, which can be used as an in-row mulch for trees in organic orchards ( Granatstein et al., 2003 ). In our trial, WCM, SPM, and white clover living mulch all provided excellent weed suppression. Tree growth was also improved in WCM and SPM