Micronutrients for field crops

Last updated on January 15, 2021

On February 28, 2019, the Agricultural Waste Control Regulation was replaced by the Agricultural Environmental Management Code of Practice. This page is being updated to be consistent with the new regulation.

Micronutrients are required by plants in small amounts relative to macronutrients like nitrogen, phosphorus, and potassium. However, they are nonetheless essential to plants.

Learn more about micronutrients:

Do You Need Micronutrient Fertilizers? (PDF)
Boron for Field Crops (PDF)
Micronutrients for Crops Grown on Organic Soils (PDF)
Use of Manganese on Organic Soils (PDF)

Soil pH and micronutrients

Various micronutrients, except molybdenum (Mo), are more available for plant uptake at low soil pH (acidic conditions) than at high soil pH (alkaline conditions). Read more about the effects of soil pH:

Soil pH

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Micronutrients for field crops

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