Perspectives for Applicability of Low Quality Water in Irrigated Agriculture

Annotation: Quality control on the water for irrigation is needed to avoid emerging problems as decreasing the yield of agriculture and worsening its quality at using inadequate quality water. The development of a computer based information system, i.e. decision support system for assessing the suitability of the water for irrigation aims to protect cultivated crops not to be irrigated with water of unsuitable quality. The system uses laboratory analysis information, cultivated crops data, soil and agro-climatic characteristics, irrigation technology, legal rules and some additional parameters. The paper presents the main directions for determination the applicability of irrigation water at various crops on the basis of the assessment of its quality, i.e. establishing a database of irrigation water quality indicators and recommendations' elaboration for irrigation water considering qualitative parameters of the available water. The estimation algorithm and the programme follows three fundamental steps: establishing an irrigation water quality indicators database and input data uploading and updating, assessment of irrigation water quality, issuing recommendations for irrigation water utilization.