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Renee H. Harkins, Bernadine C. Strik and David R. Bryla

crops, including blackberry. The objective of the present study was to assess the impact of cultivar and weed management strategies on the accumulation and loss of plant biomass and nutrients during the first 3 years of establishment when using organic

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Emily K. Dixon, Bernadine C. Strik and David R. Bryla

machine harvest (early July) during each harvest year (2012–14) to avoid any interference with the catcher plates on the machine harvester; the biomass removed was left in the row. In hand-weeded plots, weeds were removed as needed by hoeing throughout

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Nihat Tursun, Bekir Bükün, Sinan Can Karacan, Mathieu Ngouajio and Hüsrev Mennan

and was 2.5 m long. The two outer rows of each plot were used as buffer rows and 10 middle rows were used for weed biomass and yield assessments. Weed and crop measurement. Experiments were conducted on different sites within the location

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Husrev Mennan and Mathieu Ngouajio

incorporation, the cover crops were sampled to estimate aboveground biomass and assess weed populations. Four 0.250-m 2 quadrants were sampled per plot. To determine the weed suppressive effects of the cover crops, weed density and total weed dry biomass were

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Mary Jo Kelly, Marvin P. Pritts and Robin R. Bellinder

, Austria). In studies that examined the effects of harrowing on weed growth and crop productivity, a number of researchers reported inferior weed control ( Table 2 ). However, in most cases, weed biomass of the harrowed plots was equivalent to that of the

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Jose G. Franco, Stephen R. King, Joseph G. Masabni and Astrid Volder

. In this article, we evaluate the ability of watermelon to reduce weed biomass and explore the relationships between weed suppression, yields, aboveground plant biomass, and LAI. The primary objective of this study was to test the ability of watermelon

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Marco Fontanelli, Luisa Martelloni, Michele Raffaelli, Christian Frasconi, Marco Ginanni and Andrea Peruzzi

not negatively affect yield ( Tei et al., 2002 ). In particular, split-hoeing and finger weeding showed a high potential in direct mechanical weed control in spinach, leading to an 80% reduction in average weed biomass at harvest. Finger weeders have

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Alyssa R. Tarrant, Daniel C. Brainard and Zachary D. Hayden

, such as sudangrass, Italian ryegrass, and teff, can establish quickly and accumulate larger amounts of biomass, improving their weed suppressive potential ( Wedryk and Cardina, 2012 ). Although, high living mulch biomass production can lead to

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Alyssa H. Cho, Carlene A. Chase, Danielle D. Treadwell, Rosalie L. Koenig, John Bradley Morris and Jose Pablo Morales-Payan

serving as a green manure. Cover crop species are most effective in smothering and suppressing weed populations when they emerge and establish rapidly and produce a large amount of shoot biomass ( Teasdale, 1998 ). Cover crops reduce weed pressure through

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John Wilhoit and Timothy Coolong

ft apart lain between the edges of the plastic and weighing the mulch in the field. The distance between the edges of the plastic was measured at each location and used to calculate the area that the mulch was sampled from. Weed biomass was determined