Effect of Agricultural Practices on Nitrate Leaching.

Ryan, Michael; McNamara, Kevin; Brophy, C.; Connolly, John; Carton, Owen T.; Richards, Karl G.

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Effect of Agricultural Practices on Nitrate Leaching.

Ryan, Michael; McNamara, Kevin; Brophy, C.; Connolly, John; Carton, Owen T.; Richards, Karl G.

Keywords

Nitrate leaching, Farm management, NCYCLE (UK) model, NCYCLE_IRL, Grassland systems

Date

2005-12-01

Citation

Ryan, M., McNamara, K., Brophy, C., Connolly, J., Carton O.T., Richards, K. Effect of Agricultural Practices on Nitrate Leaching, End of Project Reports, Teagasc, 2005.

Abstract

A farm-scale study, carried out at Teagasc, Moorepark (Curtin’s farm), examined the effect of four managements (treatments) on nitrate-nitrogen (NO3-N) leaching over the period 2001-`05. Leaching was measured in these treatments: (T1) plots receiving dirty water and N fertilizer which were grazed; (T2) 2-cut silage and grazing plots receiving slurry and fertilizer N; (T3) grazed plots receiving fertilizer N and (T4) 1-cut silage and grazing plots receiving slurry and fertilizer N. The soil is a free-draining sandy loam overlying Karstic fissured limestone.

Effect of Agricultural Practices on Nitrate Leaching.

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