File:MotsAgro Histoires d’humus, 2. De la « théorie de l’humus » à la théorie minérale Figure 1.jpg
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Summary
La consommation d’engrais (N, P et K) en France entre 1886 et 1984 (d’après Boulaine, 1989 : 95)
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| current | 16:22, 16 February 2023 | | 960 × 549 (35 KB) | Pierre Morlon (talk | contribs) | La consommation d’engrais (N, P et K) en France entre 1886 et 1984 (d’après Boulaine, 1989 : 95) |
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