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• “The earthworm is the best workmate of the farmer”– or beneficial effect of minimal soil disturbance on soil structure

  250-258

  Attila Barczi

  Tamás Harrach

  Valéria Nagy

  Views:

  114

  In recent decades in Germany the soil structure is greatly improved on a substantial part of the  rable land. Soil erosion can be observed less commonly. Since the 1970s in Germany the intensity of soil disturbance is significantly reduced. The less disturbed soil has more mechanical load, namely the stability. The perforated structure with stable biopores ensures ecological functions, such as infiltration, aeration, root permeability, fertility. For this reason, soil compaction and soil erosion occur less frequently, they can be detected only in exceptional cases. But in Hungary, the same can not be said therefore it is a desirable objective to explore the cause of differences. Usually the best soil structure can be found on the arable lands without rotation cultivated. In Germany we could study the condition of soils in farms which using no-till system. We have analyzed the effect of soil cultivation methods on the soil structure.

• The Examination of the Cultivation-Resulted Effects on the Soils of Turkey Oak Forests and Sessile-Oak Forests

  241-246

  Ágnes Botos

  Péter Boda

  László Márta

  Tibor József Novák

  Views:

  67

  While examining soil patterns from low ridges and shallow furrows of untouched forest areas we discovered some traces of antropogenic effects. We found that samples from the ridges are argillaceous, succinct, highly-bound and significantly eroded Luvisol samples with a thin layer of humus and strong acidity. By contrast, the samples of the furrows have thin layers of mould and weak acidity. HTM (a pebble, which came from other areas) and other artificial products can be found in both geological sections and they refer to the antropogenic effects and the accumulations and eroding processes resulting from ci-devant, 15-20 cm deep ploughing. Our findings give an evident proof of former cultivations and their soil status-changes in the currently forest-covered areas.