academic article

• Above- and belowground interference of purple and yellow nutsedge (Cyperus spp.) with tomato..  Weed Science.  53:181-185. 2003
• Influence of nitrogen fertilization on the competitive interactions of cilantro (Coriandrum sativum) and purple nutsedge (Cyperus rotundus).  Journal of Herbs, Spices & Medicinal Plants.  6:59-66. 1999
• Influence of purple nutsedge (Cyperus rotundus) density and nitrogen rate on radish (Raphanus sativus) yield.  Weed Science.  46:661-664. 1998
• Interference of purple nutsedge (Cyperus rotundus) population densities on bell pepper (Capsicum annuum) yield as influenced by nitrogen supply.  Weed Technology.  12:230-234. 1998
• Effects of purple nutsedge (Cyperus rotundus) on tomato (Lycopersicon esculentum) and bell pepper (Capsicum annuum) vegetative growth and fruit yield.  Weed Technology.  11:672-676. 1997
• Effects of shading on the growth of nutsedges (Cyperus spp.).  Weed Science.  670-673.