Influence of Minimum Soil Tillage Systems and Crop Rotation on the Agrotechnical Quality Indices and Soil Fertility Indicators

摘要

The soil tillage system aims at modifying soil properties in order to optimise them with the cultivated plants demand. This paper brings forward the results of research carried out on an argic-faeoziomic soil type within a three-year rotation crop of soybean-wheat-corn, by implementing the conventional system (with plough) and three minimum soil tillage systems: rotary harrow, paraplow and chisel plough. The goal of this research aimed at determining the influence of crop rotation and soil tillage system on quality indices of soil tillage for the autumn wheat crop. The quality indices have included: the time and the optimum epoch for the tillage; the tillage depth and its observance for the entire plot; the degree of soil aeration, the presence of clods; the uniformity of the tillage; incorporation of vegetal debris, namely uniformity of debris distribution on the ground. The results of the bonitation of the basic tillage quality, of the seedbed preparation and of the sowing on the unconventional tilled ground, attest similar values for quality indicators, which confirm the possibility of implementing them for the wheat crop in appropriate conditions