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Nutrient management for vegetable crops

Nutrient management principles
Limiting factors
Optimum nutrient levels and the effect of pH
Nutrient interactions and deficiencies
Recommendations for vegetables
Is nitrogen a special case?
Additional Resources
Nutrient management principles
Taking representative samples
Dealing with variability
Overall sampling pre-planting
Sampling before side-dressing
Sampling after harvest
Sending samples to a laboratory
Taking representative soil samples
Nitrogen
The nitrogen cycle
Nitrogen tests
Keep it in the root zone
Nutrient Budgeting
Why prepare a nutrient budget?
Prepare a pre-planting nitrogen budget
Prepare a post-harvest nitrogen budget
Prepare a phosphorous nutrient budget
Nutrient Budgeting

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Additional Resources

  • Sustainable Vegetable Systems
  • Nutrient management of vegetable crops in New Zealand (2019)
  • Nutrient management for vegetable crops in NZ – recommendations and supporting information. Edition 1.0 (2019)
  • Guidelines for soil nitrogen testing and predicting soil nitrogen supply (2022)
  • The nitrate quick test mass balance tool (2019)
  • Nitrate quick test mass balance tool (calculator) (2019)

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