of damage and disease, but there are no specific requirements for size or shape. Treatments Strip tillage. In October, crop residues were incorporated by disking and rye was seeded; the seeding rate was 123 kg·ha −1 in 2010 and 184 kg·ha −1 in 2011
estimating crop residue cover Soil Use and Management. 7 177 182 Morgan, J.A. Brown, R.H. 1983 Photosynthesis and growth of bermudagrass swards. I. Carbon dioxide exchange characteristics of swards mowed at weekly and
, crop residues, kitchen waste, ash, charcoal, and, occasionally, human excrement. The use of crop residues as mulching materials suppresses weeds ( Renard et al., 2012 ; Torres et al., 2000 ). Traditional chinampas are characterized by a high degree of
completely mineralize during the zucchini cropping cycle. However, some of the N contained in the cover crop residues could be potentially available for the next crop. The GM and RC treatments were associated with an increase in marketable zucchini yield
higher yield in the next year. Even in the control plot, fertilization during the growth season and remaining crop residues after bell pepper fruits were harvested might contribute some carryover for the next season. Furthermore, sorghum sudangrass was
). The onion had a significant reliance on the previous cover crop residue for N ( Table 3 ). The sunn hemp cover crop and soil appeared to supply ≈90 lb/acre N for the following onion crop. Our modeling of N release in the 3rd year indicated the cover
; Somireddy, 2012 ). Similarly, in studies with crop residues, satisfactory weed control has often been reported even in cases in which most of the herbicide was intercepted by surface residue ( Crutchfield et al., 1986 ; Ghadiri et al., 1984 ). This is
, especially in organic strawberry production, could also help save producers considerable money ( Sarrantonio, 2007 ). Cover crop residues may be releasing nutrients slowly over the strawberry season, yet it is difficult to assess when and how much nutrients
systems under operational conditions. Literature Cited Bakht, J.M.S. Jan, M.T. Shah, Z. 2009 Influence of crop residue management, cropping system and N fertilizer on soil N and C dynamics and sustainable wheat ( Triticum aestivum L.) production Soil
. 2007 Economic analysis of processing tomato growing: The case study of Torbali, West Turkey Spanish J. Agr. Res. 5 1 1934 1940 Erenstein, O. 2002 Crop residue mulching in tropical and semi-tropical countries: An evaluation of residue availability and