Supplemental

• Conduct insect or plant disease surveys.
• Perform general nursery duties, such as propagating standard varieties of plant materials, collecting and germinating seeds, maintaining cuttings of plants, or controlling environmental conditions.
• Operate farm machinery, including tractors, plows, mowers, combines, balers, sprayers, earthmoving equipment, or trucks.
• Perform crop production duties, such as tilling, hoeing, pruning, weeding, or harvesting crops.
• Devise cultural methods or environmental controls for plants for which guidelines are sketchy or nonexistent.
• Maintain or repair agricultural facilities, equipment, or tools to ensure operational readiness, safety, and cleanliness.
• Transplant trees, vegetables, or horticultural plants.
• Prepare or present agricultural demonstrations.
• Assess comparative soil erosion from various planting or tillage systems, such as conservation tillage with mulch or ridge till systems, no-till systems, or conventional tillage systems with or without moldboard plows.
• Conduct studies of nitrogen or alternative fertilizer application methods, quantities, or timing to ensure satisfaction of crop needs and minimization of leaching, runoff, or denitrification.
• Record environmental data from field samples of soil, air, water, or pests to monitor the effectiveness of integrated pest management (IPM) practices.
• Prepare land for cultivated crops, orchards, or vineyards by plowing, discing, leveling, or contouring.
• Perform laboratory or field testing, using spectrometers, nitrogen determination apparatus, air samplers, centrifuges, or potential hydrogen (pH) meters to perform tests.
• Perform tests on seeds to evaluate seed viability.
• Prepare culture media, following standard procedures.
• Determine the germination rates of seeds planted in specified areas.