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Robert L. Meagher Jr., Rodney N. Nagoshi, James T. Brown, Shelby J. Fleischer, John K. Westbrook, and Carlene A. Chase

Sunn hemp, Crotalaria juncea L., is a warm-season legume that is planted before or after a vegetable cash crop to add nutrients and organic matter to the soil ( Cherr et al., 2006 , 2007 ; Mansoer et al., 1997 ; Wang et al., 2005 ). This cover

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

analysis of the cover crop sunn hemp ( Crotalaria juncea L.) and its potential for seed production and weed control in Puerto Rican agricultural systems. MS thesis, Univ. of Puerto Rico, Mayagüez, PR Mansoer, Z. Reeves, D.W. Wood, C.W. 1997 Suitability of

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Emillie M. Skinner, Juan Carlos Díaz-Pérez, Sharad C. Phatak, Harry H. Schomberg, and William Vencill

inhibitory effect on lettuce and annual ryegrass germination compared with ’Rye-2’ residue. Germination of carrot and sicklepod was unaffected by the four cover crop treatments. Table 1. Influence of sunnhemp ( Crotalaria juncea L.) and rye ( Secale cereale

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Muhammad Mansoor Javaid, Manish Bhan, Jodie V. Johnson, Bala Rathinasabapathi, and Carlene A. Chase

, M. Weidenhamer, J.D. Weston, L.A. 2009 Assessment of the phytotoxic potential of m-tyrosine in laboratory soil bioassays J. Chem. Ecol. 35 1288 1294 Cole, S.D. 1991 Allelopathic effects of Crotalaria juncea , MA thesis, Univ. South Dakota

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Jialin Yu, Nathan S. Boyd, and Zhengfei Guan

Weed Sci. 50 448 460 Cho, A.H. Chase, C.A. Treadwell, D.D. Koenig, R.L. Morris, J.B. Morales-Payan, J.P. 2015 Apical dominance and planting density effects on weed suppression by sunn hemp ( Crotalaria juncea L.) HortScience 50 263 267 Dotzenko, A

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Michael J. Adler and Carlene A. Chase

production: A synthesis Agron. J. 98 302 319 Cole, S.D. 1991 Allelopathic effects of Crotalaria juncea Univ. of South Dakota MS Thesis Collins, A.S. 2004 Leguminous cover crop fallows for the

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Anthony M. Ortiz, Brent S. Sipes, Susan C. Miyasaka, and Alton S. Arakaki

cv. Dwarf Essex, Crotalaria juncea , and Sorghum nothosubsp. drummondii cvs. Piper and Sordan 79. Effects of Meloidogyne javanica and Pythium aphanidermatum in the greenhouse trial: All crops Probabilities of whole plot main effects, subplot

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Jose Linares, Johannes Scholberg, Kenneth Boote, Carlene A. Chase, James J. Ferguson, and Robert McSorley

Cruz, CA Wang, K.H. McSorley, R. Marshall, A. Gallaher, R.N. 2006 Influence of organic Crotalaria juncea hay and ammonium nitrate fertilizers on soil nematode communities Appl. Soil Ecol. 31 186

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Jianyu Li, Xin Zhao, Gabriel Maltais-Landry, and Bodh R. Paudel

characteristics for crop nutrient management ( Haruna and Nkongolo, 2015 ; Thorup-Kristensen et al., 2003 ). As a tropical legume, sunn hemp ( Crotalaria juncea L.) is adapted to growth conditions found in the southeastern United States and Florida: sandy soils

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Alyssa H. Cho, Alan W. Hodges, and Carlene A. Chase

Partial budget analyses of five summer fallow treatments in Florida preceding a cash crop of summer squash (Cucurbita pepo) were conducted. The five treatments were sunn hemp (Crotalaria juncea), velvet bean (Mucuna deeringiana), cowpea (Vigna unguiculata), sorghum-sudangrass (Sorghum bicolor × S. bicolor var. sudanense), and tillage. Costs were estimated for each summer fallow treatment, including the cost of seed, inoculant, implementation, management, and termination. Benefits were calculated in terms of contributions to the following cash crop of summer squash in the form of biologically fixed nitrogen and reduced weed pressure. Results showed that total production costs were minimized by cover crops, even though implementation costs were higher than for tillage.