Estimation of nitrogen and sulfur mineralization in soils amended with crop residues contributing to nitrogen and sulfur nutrition of crops in the North Central U.S. Issue 18 (11th October 2018)

• Record Type: Journal Article
• Authors: Kaur, Jashandeep; Cihacek, Larry J.; Chatterjee, Amitava
• Is Part Of: Communications in soil science and plant analysis. Volume 49:Issue 18(2018)
• Page Start: 2256
• Page End: 2266
• Publication Date: 2018-10-11
• Subjects: Crop residues -- Immobilization -- Mineralization -- Nitrogen -- Sulfur; Soil science -- Periodicals; Plants -- Chemical analysis -- Periodicals; Agricultural chemistry -- Periodicals; 631.405
• DOI: 10.1080/00103624.2018.1499761
• Languages: English
• ISSNs: 0010-3624

Abstract

ABSTRACT: Predicting nitrogen (N) and sulfur (S) mineralization of crop residues from the preceding crop might be a useful tool for forecasting soil N and S availability. Two soils from eastern North Dakota and three crop residues – corn, spring wheat, and soybean were used in an 8-week incubation study to estimate N and S mineralization from crop residues. The cumulative N and S mineralized were fit to a first-order kinetic model. Cumulative N mineralized ranged between 0.34 and 2.15 mg kg −1 and 0.45 to 3.41 mg kg −1 for the Glyndon and Fargo soils, respectively. Un-amended soils showed higher N mineralization than residue treated soils. For S, the highest mineralization occurred in un-amended Glyndon soil and in spring wheat-amended Fargo soil. This study indicates that crop residue additions can have a negative impact on plant available nutrients due to immobilization of N and S during the time when crops need the nutrients most.