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Soil Nutrient Trends. Organic Vegetable Cropping Systems Project. Cropping Systems. V1—high compost inputs, no legume cover crops, 1.5 cash crops per year V2—low compost inputs, legume cover crops when possible, 1 cash crop/year
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Soil Nutrient Trends Organic Vegetable Cropping Systems Project
Cropping Systems • V1—high compost inputs, no legume cover crops, 1.5 cash crops per year • V2—low compost inputs, legume cover crops when possible, 1 cash crop/year • V3—low compost inputs, heavy legume cover crops, 1 cash crop every 2 years • V4—similar to V2 but using ridge tillage to reduce tillage intensity
Nitrogen Tie-up • High carbon, moderate nitrogen input in system 1: • Moderate carbon, high nitrogen input in system 3: