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Updated: May 24, 2026

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis
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Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

Published on: May 10, 2020

World fertilizer nutrient reserves: a view to the future

Paul E Fixen1, Adrian M Johnston

  • 1International Plant Nutrition Institute, Brookings, SD 57006, USA.

Journal of the Science of Food and Agriculture
|March 15, 2012
PubMed

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