Madras Agricultural Journal
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Research Article | Open Access | Peer Review

The principles of crop production."

Volume : 3
Issue: Jun-jun
Pages: 145 - 147
DOI: https://doi.org/10.29321/MAJ.10.A01519
Published: May 19, 2025
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Abstract

Up to 1840 farmyard manure held undisputed sway as a fertiliser. It was known that plants contained metallic consti tuents, and that certain metallic compounds were useful ferti- lisers, but in as much as organic matter was the chief constituent of plants

DOI
https://doi.org/10.29321/MAJ.10.A01519
Pages
145 - 147
Creative Commons
Copyright
© The Author(s), 2025. Published by Madras Agricultural Students' Union in Madras Agricultural Journal (MAJ). This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited by the user.

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