Daniel Dorin DICU, Dorin ŢĂRAU, Iacob BORZA
The research made is falling on the line to develop an sustainable agricultural system, responding to local requirements for establishing a scientific database necessary for the development of technology and measures of agroecosystems integrated management. Conservative systems are based on less intensive loosening soil through different methods without return and only furrow the soil surface while maintaining a certain amount of plant debris, often seen as environmental protection strategies. The system of soil conservation means any soil work that lets you keep debris on the soil surface or near surface and / or maintenance of granular soil surface to reduce soil erosion and improved water relations with soil. The passing to no-till cultivation system radically changes the content of technological elements, that simplifies the technology by the suppression of soil work, so the impact on the agricultural ecosystem is different from that of conventional technology, first decreases the pressure on agricultural ecosystem and on the other  apear new interactions, new disrupt the new balance or imbalances. The research made in the world concerning no-till technology  get some information about the implications of this system of agricultural cultivation on the environment, showed that the impact varies from one area to another, depending on climatic and soil conditions encountered, agricultural management. The researches regarding the evolution of the agro-ecosystems quality and productivity from the Vinga High Plain in the no-till crop system tries to highlight the quality and quantity changes emerged in the agricultural ecosystem. The aim of the research carried out has its origins in the current scientific and practical concerns increasingly to identify and put in place of a system of tillage, agronomic efficient, low energy and financial cost, environmental and soil conservation, to replace the classic system. There are presented some aspects regarding the physical-geographical characterization necessary for the experimental field localization. Here are briefly introduced the geology and lithology of surface materials, clime conditions, land drainage etc., as defining elements for edaphic resources’ main characteristics. To determine physical, chemical and biological properties of cambic chernozem from Aradul Nou more samples were collected in both natural settlement (to determine the bulk density, total porosity, compactation degree) and in disturbed settlement (to determine other propertie s). Also, regarding the soil conditions have been determined the defining characteristics for the ecosystems productivity, granulated structure and humus content. In close relation with the first two aspects have been established the main physical, chemical and biological properties of the cambic chernozem from Aradul Nou. In order to determine the complex relation that take place between different soil characteristics and agro-ecosystems components, the researches were conducted both on field and laboratory.
physical, chemical, conservative, conventional, tillage
Presentation: oral