Project Number: 1265-21220-176-03
Project Type: Specific C/A

Start Date: Sep 01, 2001
End Date: Aug 31, 2005

Objective:
Replace the use of methyl bromide with nitrogen-fixing, nematode resistant cover crops that boost yields through precision irrigation and fertilization and addition of organic matter to soil. Select genetically enhanced cover crop lines, and improve their management to provide economical and copious seed production. Develop weed management and crop rotation schemes that reduce nematode and soilborne pathogen populations.

Approach:
1.Validate and optimize prototype tomato production systems, through replicated randomized complete block experiments involving: (A) Standard Practices: low level irrigation, plastic mulch for weed control, and low level of compost, (B) Variables: Sorghum Sudan hybrid, velvet bean, fallow, sunn hemp and nematode-resistant cowpea ('Iron & Clay'). Yields and other effects of these systems may be compared to those produced by chemical alternatives. Challenge the most promising systems in weedy fields naturally or artificially infested with dense populations of plant parasitic nematodes. 2. Select germplasm lines of 2 or 3 cover crops that are adapted to Florida, and develop production systems for optimizing seed production and mechanical harvesting. 3. Develop the use of switching tensiometers for scheduling and controlling irrigation and fertigation. 4. Develop effective weed management procedures especially for recalcitrant hosts of nematodes in cover crops and row middles.

Project Team

Abdul-Baki, Aref Walden Klassen - Plant Physiologist (301)504-6537

Project Annual Reports

FY 2003   FY 2002