| dc.description | Rice (Oryza sativa L.) is the heart rhythm of Bangladesh agriculture, as it is
the staple food crop covering 76% of the total land area and it provides the
ultimate entity of most of the people. The geographical and agro-climatic
conditions of Bangladesh are favourable for rice cultivation. So, the
cropping patterns prevailing in the country are dominated by rice. Rice is
grown here round the year, in Aus, Aman and Boro seasons. Rice holds the
area of 10.78 million hectares with a production of 25.19 million tons of
grain (BBS, 2004). | en_US |
| dc.description.abstract | An experiment was conducted at the experimental field of the Department of Soil
Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur
during November 2012 to March, 2013 to evaluate the varietal performance of rice
cultivation with inorganic fertilizer application. The treatments of the experiment
involved, T; (Control); T, (25% of the recommended dose of fertilizers); T; (50% of
the recommended dose of fertilizers); Ty, (75% of the recommended dose of
fertilizers); T; (100% of the recommended dose of fertilizers). And the variety which
was involved in the experiment, BR 16, BRRI dhan 28, BRRI dhan 29 and BRRI
dhan 50. In case of growth parameter better results shows in the T; treatments i.e.
100% of the recommended dose of fertilizers and BRRI dhan 28 and BRRI dhan 50
shows good results than other varieties. In case of varietal performance the maximum
rice yield (32.0 gm/pot in BRRI dhan 28, 36.36 gm/pot in BRRI dhan 50) was noted
in T; treatment. BR 16 variety maximum nitrogen content (0.08%) of rice was found
in the treatment T;, BRRI dhan 28 variety (0.07 %) in the treatment T;, BRRI dhan
29 (0.07%) in T; and BRRI dhan 50 (0.06 %) in T; & Ts. In case of Phosphorus BR
16 variety maximum P content (31.98 ug/gm soil) in Ts, BRRI dhan 28 (28.34 ug/gm
soil) in Ts, BRRI dhan 29 (23.31 ug/gm soil) in T,, BRRI dhan 50 (22.43 pg/gm soil)
in Ts. In case of K content BR 16 shows maximum (0.48 meq/100gm soil) in T,,
BRRI dhan 28 (0.32 meq/!00gm soil) in Ts, BRRI dhan 50 (0.2 meq/100gm soil) in
Ts; treatment. In case of S content BR 16 shows highest (6.28 ug/gm soil) in T,, BRRI
dhan 28 (8.05 ug/gm soil) in Ts, BRRI dhan 50 (5.12 ug/gm soil) in T, treatments. In
case of Ca, BR 16 variety maximum Ca content (2.43 meq/100gm soil) in T,. BRRI
_dhan 28 (1.8 meq/100gm soil) in T,, BRRI dhan 29 (1.86 meq/100gm soil) in T),
BRRI dhan 50 (1.64 Meq/100gm soil) in T's. From the above discussion it is clear that
application of chemical fertilizers as 75% of the recommended doses for rice
cultivation increases the yield of BRRI dhan 16 of rice. Other varieties of rice shows
maximum yield with the application of chemical fertilizers as 100% of the
recommended doses for rice cultivation increases the yield of rice. NPKS content in
the soil was maximum with application of chemical fertilizers as 75% & 100 % of the
recommended doses for rice cultivation. Finally we can suggest the farmers lo use
75% fertilizers in case of BRRI dhan 16 variety of rice. | en_US |
