Influence of irrigation and tillage patterns on yield and its components for five rice varieties (Oryza sativa L.)‎ under the system of the rice intensification (SRI)‎

الملخص EN

A field Experiment was conducted at Al-Mishkhab Rice Research Station at Najaf province in Iraq during 2019-2020 rice season, which is located between N 0o17´4.5075 and E 40o54´29.6959, assess Analysis Of The influence of irrigation and tillage patterns on yield and its components for five rice varieties under the System of Rice Intensification (SRI).

The trial was performed as split split plot in based on a randomized complete blocks design (RCBD) having three replications.

The experiment parameters of the irrigation patterns were: daily irrigation and intervals irrigation (3 days, 6 days, and 9 days intervals) with five varieties of rice: Anbar 33, Jasmine, Mishkhab 2, , Baraka and Dijla.

The Tillage pattern: Soil tillage and the non-Tillage, by using principles of the System of Rice Intensification (SRI) are: transplanted method, and seedlings were transplanted pattern square 30×30 cm between other with one seedlings per hill and early transplanted 15 days seedling old.

The results of this research showed that there are significant differences in the yield and its components (The number of active tillers, weight of 1000 grains, Sterility percentage, Grain yield and biological yield) with the interval of irrigation each 3 days under a non-tillage soil compared with 9 days interval.