By the performed researches, the calculation of moisture deficit and irrigation water supply was performed, based on three climatic scenarios under different pedoclimatic conditions of Romania. Due to the complexity and interest of the theme under study, practical  researches in Romania regarding the plant water consumption were performed in the research stations belonging to NARDI Fundulea network, as well as at universities related to this issues. To achieve the proposed objectives, the paper presents a schedule for a mathematical modulation, with 15 variants „5 x 3”, in four reps, where reps represented the values obtained in four important crops, in Romania. Factor A – pedoclimatic area , with the following graduations: A 1 - Constanţa, A 2 - Alexandria, A 3 - Focşani, A 4 - Fundulea, A 5 - Tecuci; Factor B – climatic scenario, with the following graduations: B 1 -Tn  –  current average temperatures, B 2 -Tn+2 o C – increasing, with 2 o C, of the current average temperatures, B 3 -Tn+5 o C – increasing, with 5 o C, of the current average temperatures. The ETRO value was highly precisely estimated, using Thornthwaite method, and to follow all the modifications of irrigation regime elements, the water soil balances for all crops under study were achieved. The paper try to underline the negative impact of global warming, by using methods of water consumption indirect determination. Following the researches on world plane, measures to use modern irrigation techniques, limited water supplies, crop breeding for drought resistance as well as new species were taken. To achieve the researches, indirect methods to determine the water consumption were used. The proposals are very important for irrigated farming, because it is important to produce a lots and cheap, for food security. The paper presents high level of originality; no similar papers were performed till present, in Romania. The paper highlights the possible increases, in the future, of the water consumption, in the main areas of the Romania, calling attention on the safety of obtaining yields under the most fertile areas.

limited water supplying; watering rate; irrigation norm; water consumption

Presentation: oral