Tableau 1
Productions moyennes dans un échantillon de 20 parcelles selon leur note de végétation (les rendements (a) et (b), d’une part, et (c) et (d), d’autre part, sont significativement différents au seuil 0,01 %).
Average yields in a sample of 20 plots according to their vegetation score (yields [a] and [b] on the one hand, and [c] and [d] on the other hand, are significantly different at the 0.01% threshold).
| Densité de végétation | ||||
|---|---|---|---|---|
| Faible | Moyen | Fort | ||
| Nb de parcelles | 8 | 5 | 7 | |
| Surface totale | 7,0 | 4,7 | 10,3 | |
| Sorgho (kg/ha) | Grains | 56 | 242 | 287 |
| Tiges | 81 | 369 | 440 | |
| Niébé (kg/ha) | Grains | 90 | 182 | 167 |
| Cosses | 27 | 55 | 50 | |
| Sorgho + Niébé (kg/ha) | Grains | 144(a) | 424(b) | 455(b) |
| 445(b) | ||||
| Tiges et cosses | 108(c) | 424(d) | 490(d) | |
| 469(d) | ||||
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