Rice varieties Chaite-4 and Local Basmati performed better by producing yield 1994 aiJd /295
kglha (1996) and 2290 and 2359 kglha (1997) transplanted on Bhadra 15'h {Sept. 3nJ and Aug.
3 r') respectively under rainfed lowland condition. Seeding age upto 60 days for Chaite {spring)
season and 50 days for Bhadaiya season could be used for Chaite-2, Chaite-4, Chaite-6 and
Radha-32, Radha-12. Radha-11 and Radha-7 did not differ due to age of seedling i.e. 20-60 days
at Tarahara. Similarly difference upto 65 days did not hove significant on yield of genotypes
Radha-11, RP /070 and RD-21 at Parwanipur. Ear(v and medium maturity varieties produced
maximum yield March 15'h to April 15'1
' seeding. Late maturity varieties produced the highest
grain yield of May 15'h and 30'1
' seeding respective(v. Radha-7 and Makwanpur-1 could be retransplanted
instead of old seedlings. In varieties Masu/i, Radha-9 and Local Basmati, use of
older seedling can substitute re-transplanting. Spacing of 20cm x 1 5cm. and 20cm. x 20cm. was
suitable for ear(v and medium/late maturing rice varieties respectively. Rice transplanted either
one or more than two seedlings had no effect on grain yields. For optimum yield balance dose of
fertilizer and Zinc @25 kglha should be used At 90 kglha of nitrogen application, TOX 4004-36-
2-3-3-3, NR1487, NR601-l-l-9 yielded 4680, 4471 and -1470 kglha respective(v. Ghaiya 2 and
Radha 32 gove yield 4160 and 4075 kg/ha at 90 kg Nlha where as Radha-4 at 30 and 60 kg N/ha.
Maximum grain yield 6234.50 kg/ha was obtained from constant saturation (1 .0 em depth)
through out the growing with the total supplied water of 1293.88 mm. The herbicides Oxadiazon
:p. -1 Uha, Thiobencarb @ 5 Uha. Butachlor @ 3 Uha and Dinitranibe were found to be
pronusmg for upland rice and Pendimethalin, Piperophos/2. 4-D, Butachlor,
Pretilachlor/F enchlorim jor transplanted rice.

Rice varieties Chaite-4 and Local Basmati performed better by producing yield 1994 aiJd /295
kglha (1996) and 2290 and 2359 kglha (1997) transplanted on Bhadra 15'h {Sept. 3nJ and Aug.
3 r') respectively under rainfed lowland condition. Seeding age upto 60 days for Chaite {spring)
season and 50 days for Bhadaiya season could be used for Chaite-2, Chaite-4, Chaite-6 and
Radha-32, Radha-12. Radha-11 and Radha-7 did not differ due to age of seedling i.e. 20-60 days
at Tarahara. Similarly difference upto 65 days did not hove significant on yield of genotypes
Radha-11, RP /070 and RD-21 at Parwanipur. Ear(v and medium maturity varieties produced
maximum yield March 15'h to April 15'1
' seeding. Late maturity varieties produced the highest
grain yield of May 15'h and 30'1
' seeding respective(v. Radha-7 and Makwanpur-1 could be retransplanted
instead of old seedlings. In varieties Masu/i, Radha-9 and Local Basmati, use of
older seedling can substitute re-transplanting. Spacing of 20cm x 1 5cm. and 20cm. x 20cm. was
suitable for ear(v and medium/late maturing rice varieties respectively. Rice transplanted either
one or more than two seedlings had no effect on grain yields. For optimum yield balance dose of
fertilizer and Zinc @25 kglha should be used At 90 kglha of nitrogen application, TOX 4004-36-
2-3-3-3, NR1487, NR601-l-l-9 yielded 4680, 4471 and -1470 kglha respective(v. Ghaiya 2 and
Radha 32 gove yield 4160 and 4075 kg/ha at 90 kg Nlha where as Radha-4 at 30 and 60 kg N/ha.
Maximum grain yield 6234.50 kg/ha was obtained from constant saturation (1 .0 em depth)
through out the growing with the total supplied water of 1293.88 mm. The herbicides Oxadiazon
:p. -1 Uha, Thiobencarb @ 5 Uha. Butachlor @ 3 Uha and Dinitranibe were found to be
pronusmg for upland rice and Pendimethalin, Piperophos/2. 4-D, Butachlor,
Pretilachlor/F enchlorim jor transplanted rice.