Relationship of soil moisture, temperature and alkalinity to a soybean nodulation failure

Abstract

The roles of low soil moisture, high soil temperature and soil alkalinity in a soybean nodulation failure in an alkaline black soil were assessed. It is concluded that soil temperatures, although not the main cause, could lead to nodulation failure when coupled with soil alkalinity influences. Rhizobium strain selection in the field, higher inoculum levels and seed pelleting were the most promising approaches to its solution.