1 resultado para Pinus plantation, clear-fell harvesting, replanting, soil organic C, iron mobilization, organic matter mineralization, greenhouse gas evolution, methanogenesis, bacterial iron cycling, neutrophilic iron-oxidizing bacteria, Gallionella, Sideroxydans
em Digital Repository at Iowa State University
Resumo:
Historically, sulfur (S) application has not been recommended on Iowa soils for corn and soybean production. Soils supply, or a combination from sources such as soil organic matter, profile sulfate, manure, and precipitation have met crop S needs. However, over the past few years, S deficiencies in alfalfa and corn have been documented. Large crop yield responses have been measured in some fields containing soils with low organic matter, side-slope landscape position, or coarse soil texture, especially in northeastern Iowa. The objective of this study was to determine S response in corn and soybean in north-central Iowa.
