Abstract
Decreasing the production of nitrate-N (NO 3 −-N) in cattle urine patches may reduce the environmental impacts of pastoral agriculture. This paper reports the effects of the nitrification inhibitor dicyandiamide (DIDIN) on NO 3 −-N and ammonium-N (NH 4 +-N) production, soil pH and pasture yield in urine-amended and control soil under field conditions. In control plots, DIDIN application did not affect NO 3 −-N, NH 4 +-N, pH or pasture yields. In urine-amended plots, DIDIN application significantly ( P<0.05) reduced peak NO 3 −-N concentrations, the amount of NO 3 −-N leached, hence decreasing the potential for denitrification losses. Conversely, soil NH 4 +-N concentration decreased more gradually when urine was amended DIDIN which increased the opportunity for greater immobilization to occur. Differences in NO 3 −-N and NH 4 +-N concentrations between urine-amended treatments were also reflected by increases in soil pH but not pasture yields.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
