Highlights • Inoculation increased grain yield over the control by 24%.• Combined application of P + I increased grain yield over the control by 37%.• Soil and environmental factors explained up to 79% of yield variation.• Agronomic index for responsiveness was robust than economic index.• About 53% of the farmers that applied inoculant had VCR of ≥2.

中文翻译：

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加纳北部大豆对根瘤菌接种和磷肥反应变异性来源的农场评价和确定

亮点 • 接种使谷物产量比对照提高了 24%。• P + I 的组合施用使谷物产量比对照提高了 37%。• 土壤和环境因素解释了高达 79% 的产量变化。• 响应性农艺指数强于经济指数。• 约53% 的接种者的VCR ≥2。