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Thomas Björkman and Joseph W. Shail Jr.

crop residue must one wait to sow buckwheat? Third, what are the early- and late-season limits for seeding buckwheat? Fourth, what is the dry matter yield of the buckwheat cover crop? The current research addresses these questions and offers production

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Michael J. Adler and Carlene A. Chase

, 14, 18, and 21 d after sowing and plant heights were measured at 11 and 21 d after sowing. Plants were harvested at 21 d after sowing, dried at 75 °C for 3 d, and weighed to obtain dry biomass. Each cover crop residue experiment was conducted twice

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Guangyao Wang, Mathieu Ngouajio, and Darryl D. Warncke

in each plot and all whole cover crop plants (above- and below-ground parts) were collected. Samples were dried to constant weight before biomass determination. Cover crop residue was incorporated into the soil immediately after sampling. The field

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Laura L. Van Eerd and Kelsey A. O'Reilly

( Yn ) and crop residue N ( Vn ) ( Table 5 ). Thus, regardless of the quantity or timing of N fertilizer, N content in the cucumber plant, expressed as kg·ha −1 , was not different. Moreover, the partitioning of N and biomass between vegetative and

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David M. Butler, Gary E. Bates, and Sarah E. Eichler Inwood

have a negative impact on chemical, physical, and biological measures of soil quality ( Haynes and Tregurtha, 1999 ). Increasing organic matter inputs through crop residue conservation ( Lal, 1995 ), cover crops ( Snapp et al., 2005 ), and manures or

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S. Alan Walters

cover crop or other crop residues. These pumpkins often garner a premium price compared with those fruit grown in conventional tillage (CT), which often have soil attached to the skin ( Walters et al., 2008 ). Fertility management in NT pumpkin

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J.R. Heckman

calculations to be made for sweet corn plant residue, or stover, after harvest of the upper fresh ear. Occasionally, after harvest of marketable ears, the remaining sweet corn crop residue is harvested for livestock feed. The data on nutrient removal by

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Aaron Heinrich, Richard Smith, and Michael Cahn

quality. Another factor leading to high postharvest nitrate levels is the fact that less than 50% of the crop biomass may be removed during harvest for some crops ( Bottoms et al., 2012 ; Heinrich et al., 2013 ). The remaining crop residues typically have

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Elizabeth A. Perkus, Julie M. Grossman, Anne Pfeiffer, Mary A. Rogers, and Carl J. Rosen

points throughout the cash crop season; PMN was measured once at 2 weeks after cover crops were incorporated via tillage to capture short-term impacts of cover crop residue incorporation, and pH and EC once at final pepper harvest. Measures of soil N (ExN

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Anita Gunnarsson, Börje Lindén, and Ulla Gertsson

composition, especially C:N ratio of the different ley species; 2) the amount of N and the chemical composition of other crop residues such as red beet foliage that can be used in biogas production; 3) the net mineralization of N from crop residues; 4) the