Energy evaluation of technologies of fallow lands restoration at high humidity depending on degree of weed infestation

Abstract

The substantiation of a rational system for restoration of fallow lands is an actual task, because it speeds up their introducing into agricultural use which ultimately increases the volume of agricultural production. The aim of article is to determine the energy intensity of technological processes and technologies for restoration of abandoned lands at high humidity depending on the weed infestation of the fields. The subject of research is the evaluation of energy intensity of technological processes and technologies for the fallow lands restoration. The object of research is technological processes, methods of cultivation and technical means used in the technologies of fallow lands restoration. To substantiate the technological processes and technical means of fallow lands restoration, experimental research, analysis and compilation of experimental data were used. The scientific novelty of the work is formed by: the systems of criteria for the selection of technological processes; lands classification according to fertility, weed infestation and type of soil; the system of technological processes and the energy intensity of fallow lands restoration. It was found that the restoration of abandoned lands overgrown with young trees, small greens and perennial weeds needs an average of 7241.9 MJ per hectare. The abandoned fields overgrown with small shrubs, perennial weeds with a grass at a herbage height 40 cm need an average of 4572.6 MJ per hectare. The restoration of land with weeds up to 40 cm needs an average of 3818.8 MJ per hectare.