2024
DOI: 10.3389/fagro.2024.1391506
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Soybean yield, nutrient use efficiency, and economic returns of phosphorus and potassium in Ghana’s interior savanna

George A. Awuni,
Darrin M. Dodds,
Daniel B. Reynolds
et al.

Abstract: IntroductionPhosphorus (P) and potassium (K) deficiencies are increasingly being reported in Ghana’s interior savanna soils. Smallholder farmers consider soybeans as a “zero-input” crop resulting in low yields and profitability. Studies indicate a positive response to P application; however, knowledge of the synergistic effect of P and K in soybeans is limited. A six-site year experiment was conducted to evaluate the synergy of P and K for soybean yield, partial factor productivity (PFP), agronomic efficiency … Show more

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