Effect of time and rate of cattle-slurry application on nitrate concentration of drainage water in a double-cropping forage system

Trindade, H.; Pereira, J.; Coutinho, J.; Moreira N, N.

http://hdl.handle.net/10400.19/1056

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Abstract(s)

In the NW region of Portugal a very intensive dairy farming system has been developed based on two silage crops per year (maize plus a winter crop), which has important risks of nitrate leaching losses during the winter season. These soils receive N inputs as high as 600-730 kg N ha -1 yr -1 resulting from two applications of dairy-cattle slurry just before sowing each crop, and 220-300 kg N ha -1 yr -1 from mineral fertilizers (Trindade et al., 1997). The objectives of our study were to evaluate the effect of cattle-slurry rate and time of application on nitrate-N concentration of drainage water during the winter crop (Lolium multiflorum Lam.) growth period.

Keywords

Cattle cattle-slurry

URI

http://hdl.handle.net/10400.19/1056

Citation

Trindade H., Pereira J., Coutinho J., Moreira N., 2006. Effect of time and rate of cattle-slurry application on nitrate concentration of drainage water in a double-cropping forage system. In: Søren O. Petersen (Ed.). Technology for recycling of manure and organic residues in a whole-farm perspective. Vol. II, DIAS report no. 123, DK, ISBN 87-88976-99-8, pp. 273-276.