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Soil nutrient depletion through crop removal is a major limitation to sustainable production especially for horticultural crops which tend to have high fertilizer input requirements. In the long-term, a balance between nutrient inputs and crop removal is required. Although nutrient removal amounts for many field crops are available, such values for fruit and vegetable crops are rare. Knowledge of nutrient removal amounts is critical in developing fertilizer management practices to sustain yields and quality while maintaining soil fertility. This long-term project will quantify the nutrient accumulation and removal rates of diverse commercial vegetable crops in relation to different yield expectations and soil types. |
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