Response of crops to fertilizer application in volcanic soils.

Heliyon · 2020 · PMC7723803 · PMID 33319094

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an increasing trendno p-value reported

However, wheat, tef and maize grain yields showed an increasing trend up to K/Mg ratio of 0.71 in Mollic Nitisols (aric, humic), 0.78 in Pellic Vertisols (aric, gilgaic, mazic) and 0.88 in Vertic Luvisols (aric, nitic), respectively, and declined above these values.

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