Abstract:
The performance of water saving method of rice cultivation, system of rice intensification, was
studied in rice cultivating fields of farmers in different mandals of Visakhapatnam District under
well and tank irrigated red clayey loams. System of Rice Intensification (SRI) recorded more
tillers (44.2 m-2
), higher number of grains per panicle (252.2) and higher grain yield (6540.7 kg
ha-1
) compared to other farmers practicing flood irrigation, where the number of productive
tillers were 22.4 m-2
, grains per panicle were 195.0 and the yield recorded was 5420.3 kgha-1
.
On account of water saving too, SRI consumed less water (977.0 mm) compared to farmers
practice (1332.0 mm). These advantages were reflected in B-C ratio which was higher in SRI
(2.05) compared to farmers practice of rice cultivated under flood irrigation (1.72). Consistent
results at different locations over a period of three years proved the advantage of SRI method
over flood irrigation in terms of water saving as well as yield. |
