Search

The paper presents studies and researches made on machines performance, which is one of the most important component of the economic performance of a farm. We made measurements for determination of work quality and energetic index for tractors, considering that tractors are the main energetic power used in modern agriculture anywhere, that is why the improving of the quality and energetic index of tractors and machines is very important. The aim of the research is to improve power performances and to increase the efficiency of tractors and agricultural machines. The productivity is one of the most significant characteristics of tractors and agricultural machines, especially of harvesting machines, which are the most important machines for harvesting cereals. We wanted to emphasize that designing and making these complex agricultural machines has much evolved in the last years, from the productivity point of view and from the design and interior comfort as well. [ABSTRACT FROM AUTHOR]

The paper aimed to demonstrate the impact of fertilization and foliar stimulation products both on increasing the resistance to major phytopathogens attacks, and on increasing the quantity and quality of wine grapes harvest. Applying the foliar fertilizer products Plonvit Kali (c1), Tytanit (c2) and Optysil (c3) to vines, for a period of three years (2011/2013), in phenophases of intensive growth of shoots and grapes at approved dosages, simultaneously with pesticide treatment, not only a reduction of pathogenic fungi attack was obtained, but also and an increase of harvest without diminishing the quality of the grapes. [ABSTRACT FROM AUTHOR]

Post-harvest straw deserves particular attention among agricultural raw materials. It can be intended for sale, applied as litter material in animal husbandry or used in field fertilization. To a lesser extent it can be used for fodder production, covering mounds of roots and tubers and the production of insulation materials in horticulture and building construction. Using surplus straw directly for energy generation, including production of pellets and briquettes, should also be considered rational. Several applications were analyzed. The main purpose of the research is to determine the profitability level of winter wheat cultivation and of energy use of the straw obtained. Among others, they included situations in which obtained straw was used in the production of pellets, in fertilization after prior grinding and mixing with manure or used for direct sale. For our calculations, the costs/ha of wheat cultivation and then straw collection were estimated. The comparative analysis of various options of wheat straw utilization shows the highest profitability in the option of selling the straw and mineral fertilization. [ABSTRACT FROM AUTHOR]