Soil Nitrogen Levels in a Semiarid Climate Following Long-term Nitrogen Fertilization
CitationSneva, F. A. (1977). Soil nitrogen levels in a semiarid climate following long term nitrogen fertilization. Journal of Range Management, 30(5), 328-330.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractFertilizing crested wheatgrass for 14 years with 34 kg/ha or less did not significantly increase the NO3- N concentration in a semiarid soil. Fertilization rates of 56 kg/ha or more resulted in a significant accumulation of NO3- N just above the cemented caliche layer. Total N accumulation in the upper 61 cm of soil from N fertilization levels of less than 56 kg/ha did not exceed 30% of that normally occurring in the profile.