Balance of nitrogen, phosphor and potassium content in crop rotation with sugar beets
2002
Petkeviciene, B. | Kaunas, J. (Lithuanian Inst. of Agriculture, Rumokai, Vilkaviskis reg. (Lithuania). Rumokai Research Station)
Balance of nitrogen, phosphor and potassium content in four rotations of sugar beets (in respective periods of 1965-1973; 1974-1982; 1083-1991 and 1992-2000) was established at the Rumokai Research Station of the Agricultural Institute of Lithuania. Extended crop rotation of nine fields included two fields of winter wheat or rye (22.2%), two fields of sugar beets (22.2%), two fields of barley (22.2%), one field of perennial grass, i.e. red clover and meadow timothy of the first year use (11.1%), one field of perennial grass - red clover and meadow timothy - of the second year use (11.1%) and one field contained vegetated fallow with the drilled mixture of vetch and oat for green fodder (11.1%). Organic-mineral fertilisation system was employed in the process of crop rotation.
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