The influence of different crop management practices on soil fertility and crop rotation productivity
2005
Maiksteniene, S., Lithuanian Inst. of Agriculture, Joniskelis, Pasvalys reg. (Lithuania). Joniskelis Research Station | Arlauskiene, A., Lithuanian Inst. of Agriculture, Joniskelis, Pasvalys reg. (Lithuania). Joniskelis Research Station
Complex research was carried out at the Lithuanian Institute of Agriculture Joniskelis Research Station on an endocalcari-endohypogleyic cambisol to identify the effects of undersown crops - red clover, Italian ryegrass (Lamium multiflorum Lamk.) grown as catch crops and succession crop - white mustard (Sinapis alba L.) as well as the effects of their biomass incorporated as green manure on the intensity of nutrient circulation cycle in the agrocenoses and on minimisation of soil degradation and filtration water pollution. Red clover grown as a catch crop accumulated in the aboveground and underground biomass 114.6 kg haE-1 of biological nitrogen or 76.4 kg haE-1 of nitrogen fixed from the atmosphere, which had a positive effect on the quality of filtration water. Here the soil contained much less Nmin - 36.7 and 21.4% than after Poaceae (Bernhart) or Brassicaeae (Burnett) family plants that do not fix nitrogen and for the intensification of vegetation of which small nitrogen rates (N30) were used in the form of mineral fertiliser.
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