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Anaerobic Soil Disinfestation: Evaluation of Anaerobic Soil Disinfestation (ASD) for Warm- Season Vegetable Production in Tennessee
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mccarty, David |
| Copyright Year | 2012 |
| Abstract | Anaerobic soil disinfestation (ASD) is a non-chemical, pre-plant soil treatment developed to control soilborne plant pathogens, plant-parasitic nematodes, and weed populations in specialty crop production systems. Soil treatment by ASD involves the incorporation of a labile carbon (C) source, tarping with plastic, and irrigation of the topsoil to saturation (~ 5 cm irrigation) in order to create conditions conducive to anaerobic decomposition of the added C source. A field study was implemented beginning in fall 2010 and repeated in fall 2011 in Knoxville, TN to evaluate potential C sources for ASD prior to production of fresh-market tomato (Solanum lycopersicum cv. Red Defender) and red bell pepper (Capsicum annum cv. Red Knight X3R). Carbon sources included: 1) dried molasses, 2) cereal rye (Secale cereale) cover crop residue, 3) cereal rye residue supplemented with dried molasses, 4) mixture of mustards (Brassica juncea and Sinapsis alba) and arugula (Eruca sativa) cover crop residue, 5) mixture of mustard/arugula cover crop residue supplemented with dried molasses, 6) mustard seed meal (biofumigant control), and 7) an untreated control. Following incorporation of amendments and cover crops, beds were formed in the center of each plot, covered with black polyethylene mulch, and irrigated. Following ASD treatment, tomato and bell pepper were transplanted on half of each plot and treatment impacts on soil properties, weed control, plant pathogens, and crop performance evaluated. Accumulation of anaerobic conditions did not differ among treatments in spring/summer 2011 or 2012, but were generally greater in 2012 than 2011. There were also few differences in weed populations, disease pressure, and pepper and tomato yields among treatments. While this study establishes a potential management system for ASD in Tennessee, |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://trace.tennessee.edu/cgi/viewcontent.cgi?article=2540&context=utk_gradthes |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
