Applicability of near-infrared reflectance spectroscopy (NIRS) for determination of crude protein content in cowpea (Vigna unguiculata) leaves

Tekijä Towett, Erick K, Alex, Merle, Shepherd, Keith D, Polreich, Severin, Aynekulu, Ermias, Maass, Brigitte L
Julkaistu 2013

Comprehensive nutrient analysis in agricultural organic amendments through non-destructive assays using machine learning

Tekijä Towett, Erick K., Drake, Lee B., Acquah, Gifty E., Haefele, Stephan M., McGrath, Steve P., Shepherd, Keith D.
Julkaisussa PLoS One (2020)

Mineral–nutrient relationships in African soils assessed using cluster analysis of X-ray powder diffraction patterns and compositional methods

Tekijä Butler, Benjamin M., Palarea-Albaladejo, Javier, Shepherd, Keith D., Nyambura, Kamau M., Towett, Erick K., Sila, Andrew M., Hillier, Stephen
Julkaisussa Geoderma (2020)