ASPECTS ON THEORETICAL ANALYSIS OF WORKING PROCESS PERFORMED BY TECHNICAL EQUIPMENTS FOR CHOPPING PLANT DEBRIS IN ORDER TO CLEAR THE FIELD

The paper presents theoretical aspects on working process of rotors of technical equipments designed for chopping vegetal debris and fodders. Generally, the chopping devices with rotor, with the rotor axle in horizontal plane and normal position (perpendicular) with the machinery moving direction are used for constructing equipments for harvesting fodder crops or for those of chopping vegetal debris where they perform multiple tasks. They make the cutting, the chopping of plants and throwing the chopped material into the collecting trail or, with the case of cutting and chopping machinery, the evenly spreading of chopped material over the soil surface. The main factors that influence the chopping degree are the physical – mechanical features of the chopping material that are very different with the crop variety and the constructive and functional parameters of the chopping device

THE ANALYSIS OF THE EXPERIMENTAL RESULTS AND OPTIMIZATION OF SEEDBED PREPARATION WITH WINTER WHEAT CROP

The paper presents experimental results and the optimization of several variants for seedbed preparation for winter wheat crop. There are taken into account six technological variants for seedbed preparation and there were studied, after sowing, the soil penetration resistance and soil structural aggregates water stability as well as the fuel consumption per hectare, the yield and there were made recommendations on the best options for conservative tillages

RESEARCH REGARDING LABORATORY TESTING OF SOIL PROCESSING EQUIPMENT USING THE EFFECT OF ELECTRO-OSMOSIS

Electro-osmosis principle consists of the application of a direct current voltage for an anode-cathode system introduced into soil. The soil water transported from the anode to cathode, on the tool-soil contact surface will produce a lubrification of an active surface and through this a great decreasing of the friction forces and implicit of the energy needed for displacing the tool through the soil. The active surface of the tilling tool is chosen in order to minimize the frictions, respective the mechanic energies needed for tilling. This paper aims to increase the popularization of the electro-osmosis technique, highlighting the advantages of using such a method for soil improvements, as well as in view of optimizing the functional parameters of the soil tillage equipment

GENERAL CONSIDERATIONS CONCERNING THE EFFECTS OF ELECTRO-OSMOSIS ON DECREASING THE FORCES AND THE ENERGY NEEDED FOR TILLING THE SOIL

Electro-osmosis principle consists in the application of a direct current voltage for an anode-cathode system introduced into soil. The effect of this system consists of the mobilization of water particles from the soil and their transport, in a very short time, from the anode to cathode. The soil water transported from the anode to cathode, on the tool-soil contact surface, in consequence, will produce a lubrication of the active surface and thereby a considerable reduction of the friction forces and implicitly of the energy necessary to move the tool through the soil

AGRICULTURE 4.0 - THE USE OF SMART TECHNOLOGIES FOR HIGHPERFORMANCE AGRICULTURE

Given that the labor market in Romania has an acute shortage of labor (about 1 million people), in agriculture this lack is felt even more acutely because the population in the villages is declining and aging, thus it is increasingly difficult for Romanian farmers to find labor, let alone skilled labor. One solution can be the digitization of agriculture, ie the introduction of the latest management concepts, sensors, automation, robots, etc. in the modernization of work processes in agriculture, thus reducing the need for labor, while increasing productivity and efficiency in agriculture

COMPARATIVE STUDY OF VIBRATIONS IN APPARATUS COMBINATIONS TANGENTIAL THRESHING

          Vibrations are dynamics phenomenon which appear in some environment as a result of an external force whose action consist on an oscillation. The effect of these oscillations harm to the environment where they appear and if this environment is the human body then the results are more harmful, hauling consequences, sometimes irreversible, on the health of the human body. In this respect, studying and knowing the effects of the vibrations on human body have become a necessity, the research taking place in order to find out the limit to which the men could work in an environment with vibrations such as the agricultural machinery (self-propelled combines for cereals crop in a way) without no effects on the health of human being

RESEARCH ON THE WORKING PROCESS OPTIMIZATION OF A COMBINED INSTALLATION FOR GRAINS CLEANING

This paper presents experimental research of qualitative indexes of impurities separation out of grains seeds for one installation which used combined principles of separation (according to specific mass and aerodynamic properties of seeds). The installation used on the experimental research was composed of a gravity separator and an aspiration installation. Based on data obtained by measurements and regulated qualitative indicators the cleaning process indexes have been determined

AGRICULTURE 4.0 - A CHALLENGE FOR ROMANIAN AGRICULTURE

Given that the labor market in Romania has an acute shortage of labor (about 1 million people), in agriculture this lack is felt even more acutely because the population in the villages is declining and aging, thus it is increasingly difficult for Romanian farmers to find labor, let alone skilled labor. One solution can be the digitization of agriculture, ie the introduction of the latest management concepts, sensors, automation, robots, etc. in the modernization of work processes in agriculture, thus reducing the need for labor, while increasing productivity and efficiency in agriculture

THEORETICAL ASPECTS ON OPTIMIZING THE QUALITY INDICES OF MACHINES FOR APPLYING PHYTOSANITARY TREATMENTS IN THE FIELD

The correct application of phytosanitary treatments depends on several parameters influencing the quality indexes when applying phyto-sanitary treatments in a culture. The paper presents a few aspects regarding the quality indices of plant protection equipment treatments applied which directly influence the uniformity of the field distributio

CONSIDERATIONS ON ENERGETIC CROPS POTENTIAL

In order to breathe fresh and clean air, nature and terrestrial atmosphere should be preserved and protected. Carbon emissions represent one of the main enemies of air quality. Recently, carbon emissions have surpassed all the predictions because the excessive industrialization, becoming the determining factor for global warming. A viable alternative to carbon emissions reduction is the utilization of energy sources that can diminish the noxious substances emissions up to zero. This can be done by using the power of wind, sun, water, energy plants, etc. Among the energetic potential plants, the biomass is obtained- a form of renewable energy which final product is biofuel