engleski

Adaptable tillage - is that a solution for the present climate situation?

The aim of this work was to investigate the critics, connected with the ploughing, in a long-term trial started in 2002, in a Chernozem soil. Besides the ploughing treatment, further treatments were subsoiling, tine tillage, disk tillage and direct drilling. Results revealed occurrence and temporal extension of the plough pan under ploughing treatment. Moreover, the soil structural degradation in the regularly ploughed soil was also proved through high structure deterioration and crust formation following with organic carbon loss trough high CO2 efflux. At optimum water content ploughing can be less devastating procedure, although long term trial confirm that favourable soil condition is mostly non applicable. Regardless to soil water content, ploughing decline the biota (earthworm) population, but not radical decline in weeds infestation was observed. In the first years of the trial, higher yields were obtained at deeper tillage treatments, including ploughing while after 15 years this trend has changed considering the climate extremes. The aims of adaptation should be supplemented establishing climate tolerable soil condition.

soil vulnerability ; structure deterioration ; adaptable tillage

nije evidentirano