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  1. Carbon Balance in the Russian Forests

  2. Breeding strategies in poultry for genetic adaptation to the organic environment

  3. Aggregate strength and mechanical behaviour of a sandy loam soil under long-term fertilization treatments

  4. Soil Fragmentation and Friability. Effects of Soil Water and Soil Management

  5. The comparison of nitrogen use and leaching in sole cropped versus intercropped pea and barley

  6. Temporal and spatial root distribution and competition for nitrogen in pea-barley intercropping – a field study employing 32P methodology

  7. Interspecific competition, N use and interference with weeds in pea-barley intercropping

  8. Utilising differences in rooting depth to design vegetable crop rotations with high nitrogen use efficiency (NUE)

  9. Root growth and soil nitrogen depletion by onion, lettuce, early cabbage and carrot

  10. Tensile strength of soil cores in relation to aggregate strength, soil fragmentation and pore characteristics