[Optimisation of the mineral fertilizer production in the perennial reygrass seeds]
2001
Bumane, S. (Latvia Univ. of Agriculture, Skriveri (Latvia). Research Centre "Skriveri")
A field trial concerning optimisation of a mineral fertiliser (NPK) in the production of perennial ryegrass 'Spidola' seeds was established at the Skriveri Research Centre of the Latvia University of Agriculture in 1999. Experiments were conducted on sod-podzolic sandy loam soil (Luvic Phaeozem, WRB 1994). In 2000, the first seed production year, which was quite unsuitable in terms of climatic conditions, the nitrogen fertiliser showed significant influence on seed and straw yields. The use of phosphorous and potassium fertilisers in all combinations with nitrogen decreased the resistance of the crop to lodging.
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