Water management a=
nd varietial repose of rice under System of Rice
Intensification (SRI) in Godavari delta of Andh=
ra
Pradesh
K.M. Daks=
hina
Murthy1, *C. Venkata Reddy2 A. Upendra Rao3 and SM. Zaheruddeen4
Andhra Pradesh Rice Research Institute (ANGR=
AU), Maruteru, AP
A
field trial was conducted to study the performance of System of Rice
Intensification (SRI) compared to recommended transplanting method in Typic chromusters
at AP Rice Research Institute during rabi 2005-06. Vijetha (MTU 1=
001)
and Cottondora Sannalu (MTU
1010) were tested in SRI and conventional method of cultivation. The results
revealed that between the two varieties the performance of MTU 1001 was
superior under SRI. Observations on no of tillers per m2 indicate
that during early stages even though transplanting method recorded higher
number of tiller, as the growth advances the SRI method has recorded higher
number of tiller per m2. The higher yields in SRI were recorded
(7.170 t/ha with MTU- 1010 and 7.263 t/ha with MTU 1001 which were 4.5% and=
9.4
% more respectively as compared to transplanting. The increased yields were
attributed to more number of filled grains per panicle and higher panicle
weight. Studies on water requirement of rice with the h=
elp of
parshall flume reveals that, SRI cultivation has
taken 1130 mm of water which was 11.3% lesser as compared to recommended
transplanting (1270 mm).
****