Aa Aa Aa Biogeochemical cycles describe pathways by ... Sahrawat, K. L. Iron toxicity to rice in an acid sulfate soil as influenced by water regimes. Plant Soil 51, 143–144 (1979).

All plants require 17 elements to complete their life cycle, and an additional four elements ... plants derive the remaining 14 elements from the soil or through fertilizers, manures, and ...