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In this white paper, you'll learn:
How to determine whether compost and manure are the right nitrogen source for your soil.
Why excess potassium, phosphorus and magnesium can reduce crop performance.
How soil nutrient balance affects nitrogen efficiency and fertilizer needs.
When protein meals and biological stimulants may be better nitrogen sources.
Why soil biology depends on proper mineral balance—not just added microbes.
Practical strategies for matching nitrogen applications to crop demand while protecting long-term soil health.
Prepared by Acres U.S.A. for USDA TOPP, this white paper is supported through the USDA Organic Transition Initiative and offers cutting-edge knowledge backed by real-world experience.

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Acres U.S.A. is North America’s oldest publisher on production-scale organic and regenerative farming. For more than 50 years, our mission has been to help farmers, ranchers and market gardeners grow food profitably, regeneratively, and with nature in mind.
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