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George E. Boyhan, Julia W. Gaskin, Elizabeth L. Little, Esendugue G. Fonsah and Suzanne P. Stone

production, particularly in the southeastern United States. In onion production on muck soils in Michigan using brassica ( Brassica sp.) cover crops or sorghum × sudangrass (sudex) resulted in similar weed suppression and soil fertility regardless of the

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S. Christopher Marble, Andrew K. Koeser, Gitta Hasing, Drew McClean and Annette Chandler

herbicides used in combination with those mulches decrease due to increased light exclusion and the physical barrier provided by herbicides ( Marble, 2015 ). Overall, similar trends were observed in both bed types at both locations. The weed suppression

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Debalina Saha, S. Christopher Marble, Brian Pearson, Héctor Pérez, Gregory MacDonald and D. Calvin Odero

when applied in the presence mulch, weed control increased with increasing mulch level due to the weed suppression ability of the mulch. In ornamental production, synergistic herbicide and mulch interactions have been reported, as mulch may act as a

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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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herbicide availability is limited. Kelly et al. (p. 87) evaluated several new cultivation tools designed for vegetables. Compared to conventional methods, a finger weeder provided the best in-row weed control. A brush hoe provided good weed suppression

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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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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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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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Eric B. Brennan

useful, our research has shown that integrating these mixes with vegetable rotations is more complex and questionable due to challenges with weed suppression and productivity of the legume component in soils where there are excessive amounts of N heading

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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