Nitrogen use efficiency and yield gains from <i>Stylosanthes guianensis</i> integration in upland rice: insights from a <sup>15</sup>N-labelling study under conservation agriculture.

Results Rice grain yield While crop rotation with stylo did not significantly increase rice grain yield overall, a positive trend was observed after stylo fallow, with yields averaging 366 g DM m −2 compared to 337 g DM m −2 before the fallow (Fig. 2 ; Table A supplementary Material).

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