Response of nitrogen and plant spacing of transplanted &lt;i&gt;aman&lt;/i&gt; rice

Salahuddin, KM; Chowdhury, S. R.; Munira, Shirajum; Islam, M. S.; Parvin, S.

doi:10.3329/bjar.v34i2.5801

Cited by 35 publications

(39 citation statements)

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“…The increased grain yield with 80 kg N ha −1 might be due to the cumulative effect of the highest number of effective tillers hill −1 and grains panicle −1 obtained from the supply of nitrogen for the plants. Similar results were found elsewhere (Singh et al, 2000 andSalahuddin et al, 2009). The highest straw yield (5.25 t ha −1 ) was obtained from N 2 (80 kg N ha −1 )treatment and the lowest one (4.46 t ha −1 ) was obtained from N 0 (Control) treatment (Table 1).…”

Section: Resultssupporting

confidence: 90%

Effect of nitrogen fertilizer and weed management on the yield of transplant aman rice

Adhikari

Sarkar

Uddin

et al. 2018

J Bangladesh Agric Univ

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The research work was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during aman season from July to December, 2015 to study the effect of nitrogen fertilizer and weed management on the growth and yield of transplant aman rice cv. BRRI dhan46. The experiment consisted of four fertilizer treatments viz. 0 kg N ha −1 (N 0 ), 40 kg N ha −1 (N 1 ), 80 kg N ha −1 (N 2 ) and 120 kg N ha −1 (N 3 ) and four weeding treatments viz. one hand weeding at 20 DAT (W 1 ), two hand weedings at 20 and 35 DAT (W 2 ), three hand weedings at 20, 35 and 50 DAT (W 3 ), weeding by Japanese rice weeder twice at 20 and 35 DAT (W 4 ) and unweeded control (W 5 ). The experiment was laid out in randomized complete block design with three replications. The highest plant height (113.00 cm), number of total tillers hill −1 (8.74), number of effective tillers hill −1 (6.18), panicle length (21.98 cm), number of grains panicle −1 (114.20), grain yield (4.00 t ha −1 ), straw yield (5.25 t ha −1 ) and biological yield (9.25 t ha −1 ) were recorded in N 2 (80 kg N ha −1 ) treatment. The lowest plant height (106.00 cm), number of total tillers hill -1 (7.20), number of effective tillers hill −1 (5.00), panicle length (20.70 cm), number of grains panicle -1 (97.60), grain yield (3.52 t ha −1 ), straw yield (4.46 t ha −1 ) and biological yield (7.97 t ha −1 ) were recorded from N 0 (No nitrogen fertilizer control) treatment. On the other hand, the highest grain yield 4.23 t ha −1 was observed in three weedings condition because of the highest number of effective tillers hill −1 (6.81), number of grains panicle −1 (111.10). The highest straw yield (5.51 t ha −1 ) was also found in three weeding condition. The lowest grain yield (3.40 t ha −1 ) was recorded in W 5 (unweeded control) treatment. The lowest straw yield (4.31 t ha −1 ) was also observed in W 5 (unweeded control) treatment because of the smallest plant (106.97 cm) and lower number of total tillers hill −1 (7.20). Therefore, 80 kg N ha −1 along with three hand weedings at 20, 35 and 50 DAT may be used for obtaining the highest grain and straw yields of BRRI dhan46.

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Section: Resultssupporting

confidence: 90%

Effect of nitrogen fertilizer and weed management on the yield of transplant aman rice

Adhikari

Sarkar

Uddin

et al. 2018

J Bangladesh Agric Univ

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“…Mendhe et al, (2002) reported that the number of grains panicle -1 increased significantly with increments in level of N which was also reported elsewhere (Salahuddin et al, 2009;Mendhe et al, 2002). The heaviest grains (24.55 g) was obtained at 75 kg N ha ).…”

Section: Varietal Performancesupporting

confidence: 71%

Yield performance of some transplant aman rice varieties as influenced by different levels of nitrogen

Jisan

Paul

Merali

2016

J Bangladesh Agric Univ

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The experiment was carried out during the period of June to November 2013 at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh with a view to examine the yield performance of some transplant aman rice varieties as influenced by different levels of nitrogen. The experiment consisted of four varieties viz. BRRI dhan49, BRRI dhan52, BRRI dhan56, BRRI dhan57 and four levels of N viz. 0, 46, 60 and 75 kg ha -1 . The experiment was laid out in a randomized complete block design with three replications. Variety, levels of N and their interactions exerted significant influence on yield contributing characters and yield of transplant aman rice. Among the varieties, BRRI dhan52 produced the tallest plant (117.20 cm), highest number of effective tillers hill -1 (11.28), grains panicle -1 (121.5) and 1000-grain weight (23.65 g) whereas the lowest values of these parameters were produced by BRRI dhan57. Highest grain yield (5.69 t ha -1 ) was obtained from BRRI dhan52 followed by BRRI dhan49 (5.15 t ha -1 ) and the lowest one (4.25 t ha -1 ) was obtained from BRRI dhan57. In case of N, the tallest plant (111.70 cm), highest number of total tillers hill -1 (12.34), grains panicle -1 (133.6), 1000-grain weight (24.55 g) and grain yield (5.64 t ha -1 ) were obtained from 75 kg N ha -1 and the lowest values were obtained from control. BRRI dhan52 fertilized with 75 kg N ha -1 showed best performance with respect to all the parameters studied. The overall results suggest that BRRI dhan52 should be fertilized with 75 kg N ha -1 for getting higher yield under the agro-climatic condition of BAU.

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“…The significant increase in plant height in response to applied N fertilizers may be attributed to enhanced availability of nitrogen that increased cell division and leaf growth resulting in higher photo assimilates (Chaturvedi, 2005). In T. Aman season, plant height increased with the increasing rates of nitrogen up to 200 kg ha -1 in BRRI dhan31 and it was found significantly higher from the other levels of nitrogen (Salahuddin et al, 2009). The effects of N to plant height is easily visible and convinces farmers to apply N in N deficient soil.…”

Section: Plant Heightmentioning

confidence: 84%

“…Number of effective tillers/hill was significantly influenced by different levels of nitrogen. It was increased with the increasing rates of nitrogen up to 200 kg ha -1 and found significantly higher from the other levels of nitrogen in BRRI dhan31 (Salahuddin et al, 2009 CV (%) 3.5 13 13.6 14.9 2.2 14.9 *, **, NS significant at the 0.05 and 0.01 probability levels and non-significant, respectively. Figure 1.…”

mentioning

confidence: 85%

“…Over-application of N fertilizer may actually decrease grain yield by increasing susceptibility to lodging (Pham et al, 2004). Grain yield of T. Aman rice increased gradually with the increasing levels of nitrogen upto 150 kg N ha ) indicated that 85% of the total variation in the yield can be attributed to the variation in N alone (Salahuddin et al, 2009).…”

Section: Influence Of Nitrogen Rates On Boro Ricementioning

confidence: 96%

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Response of Medium and Long Duration Boro Rice Variety (<i>Oryza sativa</i> L.) to Nitrogen Fertilizer

et al. 2017

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A field experiment was conducted during November 2009-April 2010 in Bangladesh Rice Research Institute, Bangladesh to examine the response of two rice (Oryza sativa L.) varieties (BRRIdhan28 and BRRI dhan29) to six N rates of nitrogen fertilizer viz. 0, 50, 100, 150, 200 and 250 kg ha -1 . The experiment was conducted in a RCB design with three replications. Grain yields of both BRRI dhan28 and BRRI dhan29 increased significantly in a quadratic fashion with N rates. The highest grain yields were obtained from 150 kg N ha -1 in both the varieties. More than 1 t ha -1 yield was obtained in BRRI dhan29 (6.34 t ha -1 ) at the same rate of N indicated BRRI dhan29 as a nitrogen efficient variety. However, the predicted economic optimum doses of N appeared to be 156 and 158 kg ha -1 for BRRI dhan28 and BRRI dhan29, respectively. The grain yield was mainly influenced by the number of panicles per hill, which was found to increase with the increase of N rates in both the varieties.

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Response of nitrogen and plant spacing of transplanted <i>aman</i> rice

Cited by 35 publications

References 0 publications

Effect of nitrogen fertilizer and weed management on the yield of transplant aman rice

Effect of nitrogen fertilizer and weed management on the yield of transplant aman rice

Yield performance of some transplant aman rice varieties as influenced by different levels of nitrogen

Response of Medium and Long Duration Boro Rice Variety (<i>Oryza sativa</i> L.) to Nitrogen Fertilizer

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