Asian-Australasian Journal of Bioscience and Biotechnology
The field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultura... more The field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aman season of 2014 to study the influence of different levels of zinc applied from two sources on the yield and Zn uptake of BRRI dhan49. The soil was silt loam in texture having pH 6.8, organic matter 2.72%, total N 0.151 %, available P 4.00 mg kg-1, available K 0.08 cmol kg-1, available S 15.9 mg kg-1 and available Zn 0.90 mg kg-1. The experiment was laid out in a randomized complete block design with three replications. There were seven treatments with different rates of Zn viz. T1: Zn0, T2: Zn1 as ZnO, T3: Zn2 as ZnO, T4: Zn3 as ZnO, T5: Zn1 as ZnSO4, T6: Zn2 as ZnSO4, and T7: Zn3 as ZnSO4 where 0, 1, 2 and 3 represent the rate of Zn in kg ha-1. Recommended doses of N, P, K and S fertilizers were added to all plots and they were used in the form of urea, TSP, MoP and gypsum, respectively. Addition of Zn had significant effect on the grain and straw yi...
Nitrogen (N) fertilization is critical for cereal production; however, its low use efficiency pos... more Nitrogen (N) fertilization is critical for cereal production; however, its low use efficiency poses both economic and environmental concerns. Urea deep placement (UDP) in lowland rice fields is one of the best currently applicable management techniques to increase N use efficiency (NUE) and crop productivity. Multi-location experiments conducted in Bangladesh in 2014-2015 have demonstrated several benefits of UDP use including reduced N losses through ammonia volatilization and greenhouse gas nitrous oxide (N2O) and nitric oxide (NO) emissions. Nitrogen loss as N2O and NO emissions were measured continuously throughout rice-growing and fallow seasons using an automated gas sampling and analysis system. Across the years and sites, UDP increased yield on average by 21% as compared to broadcast urea while using at least 25% less fertilizer. UDP reduced floodwater ammonium and ammonia volatilization similar to the control (N0) treatment, while both were significantly higher in broadcast...
Integration of chemical fertilizers with manures improves crop yield and minimizes the detrimenta... more Integration of chemical fertilizers with manures improves crop yield and minimizes the detrimental effects of fertilizers. Here, an effort was made to evaluate the combined effect of organic and inorganic fertilizers on the growth and yield of rice (BINA dhan7). Application of organic and inorganic fertilizers significantly increased the yield attributes as well as grain and straw yields of rice. The treatment T5 (75%RFD + CD 2.5 t ha -1 + PM 1.5 t ha -1 + Com 2.5 t ha -1 ) produced the highest grain yield (5670 kg ha -1 ) and straw yield (6768 kg ha -1 ) of rice. The lowest grain yield (3692 kg ha -1 ) and straw yield (3751 kgha -1 ) were found in T0. Further, it was observed that application of same doses of fertilizers with poultry manure performed better than that of cowdung and compost. The NPKS uptake and use efficiency of BINA dhan7 were markedly influenced by combined application of organic and inorganic fertilizers. Overall, the treatment T6 (50%RFD + CD 2.5 t ha -1 + PM 1....
Nitrogen is one of the most deficient plant nutrients in Bangladesh soils. The use nitrogenous fe... more Nitrogen is one of the most deficient plant nutrients in Bangladesh soils. The use nitrogenous fertilizer especially urea is a commonly used fertilizer for rice production but its efficiency very low about 30-40% under traditional broadcast method A field experiment was carried out in the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aus rice growing season of 2014 to investigate the effects of prilled urea, urea briquettes and NPK briquettes on the growth, yield, and nitrogen use efficiency of BRRI dhan48. There were six treatments as T1 [check (N0P16K42], T2 [Urea briquette (one-3.4 g) (N52P16K42)], T3 (Urea briquette (one-2.7 g (N78P16K42)], T4 [NPK briquette (one-3.4g)(N51P13K32], T5 [Prilled urea (N78P16K42)] and T6 [NPK briquettes(two-2.4 g briquettes (N78P15K42)]. The experiment was laid out in a Randomized Complete Block Design (RCBD) with six treatments and four replications. Prilled urea was applied in two equal splits application; ...
Pour faire face a la demande croissante de bois avec une diminution des terres forestieres dispon... more Pour faire face a la demande croissante de bois avec une diminution des terres forestieres disponibles, un interet progressif est apparu pour developper des plantations d’arbres productives a rotation courte. Au Canada, les plantations de peuplier hybride sont particulierement interessantes puisque la sylviculture intensive courte peut contribuer a un approvisionnement en fibres plus solide, stable et renouvelable. Par ailleurs, l’amelioration genetique est consideree comme l’une des meilleures facons d’accelerer la production de la fibre et d’ameliorer la qualite du bois. Le principal objectif de cette these etait est de caracteriser les proprietes anatomiques et physico-mecaniques de plusieurs clones de peuplier hybride dans une perspective d’evaluer le potentiel de leur bois pour diverses utilisations finales. Cette etude contribue au programme d’amelioration des arbres du peuplier hybride du Quebec pour une croissance plus rapide en y ajoutant des informations sur la qualite du ...
The anatomical properties of seven hybrid poplar clones grown in three sites in southern Quebec, ... more The anatomical properties of seven hybrid poplar clones grown in three sites in southern Quebec, Canada were investigated. Radial and longitudinal variations in selected anatomical properties of wood were measured by image analysis of transverse sections and by fiber quality analysis. Results indicate that all measured anatomical properties varied significantly across sites. Clonal variation was highly significant for all anatomical properties studied, and broad-sense heritability ranged from 0.10 (average vessel lumen area) to 0.76 (cell wall area percentage). Genetic gain was positive for all anatomical properties. The variation in radial pattern was characterized by a rapid increase in the first few years in fiber length, width, and proportion, wall thickness, and percent cell wall area. Ray proportion remained constant, whereas the vessel lumen area and proportion decreased with cambial age.
The experiment was carried out at Sunamganj district during November 2016 to May 2017 to observed... more The experiment was carried out at Sunamganj district during November 2016 to May 2017 to observed the effect of urea fertilizer on the yield of boro rice varieties in haor areas of Bangladesh. Two factors experiment viz. Varieties BRRI dhan29 and BRRI dhan58; and six urea fertilizer levels including: 340 (F1), 320 (F2), 300 (F3), 280 (F4), 260 (F5), and 165 kg ha-1 (F6) [Farmer’s practice (FP)] were used. In case of F1-F5, the MoP-TSP-CaS04-ZnS04 as 127-112-75-11 kg ha-1 were used while Farmers’ practice (FP) was done with only 82 kg ha-1 TSP. The experiment was laid out in two factors randomized complete block design (RCBD) with three farmers’ replications. Data were collected on growth, yield and yield contributing characters of boro rice. Plant height varied at harvest stage in relation to variety and fertilizer. The tillers production hill-1 varied at harvest in case of variety and urea application. Higher plant height was found in BRRI dhan58 (93.9 cm) in comparison to BRRI dha...
Research in Agriculture Livestock and Fisheries, 2019
An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural Unive... more An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aman season of 2016 to evaluate the effects of deep placement of N fertilizers in the form of urea super granule (USG) and NPK briquettes in comparison with prilled urea (PU) on nitrogen use efficiency and yield of BRRI dhan49. The soil was silt loam in texture having pH 6.27, organic matter content 1.95% and total N 0.136%. The experiment was laid out in a Randomized Complete Block Design (RCBD) with eight treatments and three replications. The treatments include T1 (Control), T2 (PU, 104 kg N ha-1), T3 (USG, 104 kg N ha- 1), T4 (USG 78 kg N ha-1), T5 (USG, 52 kg N ha-1), T6 (NPK briquettes, 104 kg N ha-1), T7 (NPK briquettes, 78 kg N ha-1) and T8 (NPK briquettes, 52 kg N ha-1). All the treatments except T6, T7 and T8 received 16 kg P and 42 kg K ha-1 from TSP and MoP, respectively. In T6, T7 and T8 treatments, P and K were supplied from NPK briquettes. The PU w...
Asian Journal of Medical and Biological Research, 2016
An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural Unive... more An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during boro season of 2014 to evaluate the effect of deep placement of nitrogen (N) fertilizers on N use efficiency and yield of BRRI dhan29 under flooded condition. The soil was silt loam in texture having pH 6.27, organic matter content 1.95%, total N 0.136%, available P 3.16 ppm, exchangeable K 0.095 me%, available S 10.5 ppm and EC 348 ?S cm-1. The experiment was laid out in a Randomized Complete Block Design (RCBD) with eight treatments and three replications. The treatments were T1 [Control], T2 [Prilled urea (130 kg N ha-1)], T3 [USG, 130 kg N ha-1], T4 [USG, 104 kg N ha-1], T5 [USG, 78 kg N ha-1], T6 [NPK briquette, 129 kg N ha-1], T7 [NPK briquette, 102 kg N ha-1] and T8 [NPK briquette, 78 kg N ha-1]. All the treatments except T6, T7 and T8 received 25 kg P and 64 kg K ha-1 as TSP and MoP respectively. In T6, T7 and T8 treatments, P and K were supplied from NPK...
A pot-experiment was conducted to examine the effects of elevated soil arsenic (As) on the growth... more A pot-experiment was conducted to examine the effects of elevated soil arsenic (As) on the growth, yield and As concentration of six varieties of Boro (dry season) rice (BR21, BRRI dhan 28, BRRI dhan 29, BRRI dhan 33, Pajam and IRATOM). Two rates of As i@ 0 and 15 ppm with three replications. Arsenic contamination adversely affected the plant height, tillering, panicle length, grains panicle -1 , 1000-grain weight, grain and straw yield of all varieties. The grain yield for no As pots ranged from 39.50 g pot -1 in IRATOM variety to 60.26 g pot -1 in BRRI dhan 29 while for As treated pots such range was 30.50 g pot -1 in BRRI dhan 33 to 48.30 g pot -1 in BRRI dhan 28. The reduction in grain yield due to As contamination was significant for BR21, BRRI dhan 29, BRRI dhan 33 and Pajam. Arsenic concentration of rice grains for no As treatment varied from 0.063 ppm in BRRI dhan 28 to 0.096 ppm in BRRI dhan 29 while such variation was 0.486 ppm in IRATOM to 0.621 ppm in BRRI dhan 33 in As ...
Asian-Australasian Journal of Bioscience and Biotechnology
The field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultura... more The field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aman season of 2014 to study the influence of different levels of zinc applied from two sources on the yield and Zn uptake of BRRI dhan49. The soil was silt loam in texture having pH 6.8, organic matter 2.72%, total N 0.151 %, available P 4.00 mg kg-1, available K 0.08 cmol kg-1, available S 15.9 mg kg-1 and available Zn 0.90 mg kg-1. The experiment was laid out in a randomized complete block design with three replications. There were seven treatments with different rates of Zn viz. T1: Zn0, T2: Zn1 as ZnO, T3: Zn2 as ZnO, T4: Zn3 as ZnO, T5: Zn1 as ZnSO4, T6: Zn2 as ZnSO4, and T7: Zn3 as ZnSO4 where 0, 1, 2 and 3 represent the rate of Zn in kg ha-1. Recommended doses of N, P, K and S fertilizers were added to all plots and they were used in the form of urea, TSP, MoP and gypsum, respectively. Addition of Zn had significant effect on the grain and straw yi...
Nitrogen (N) fertilization is critical for cereal production; however, its low use efficiency pos... more Nitrogen (N) fertilization is critical for cereal production; however, its low use efficiency poses both economic and environmental concerns. Urea deep placement (UDP) in lowland rice fields is one of the best currently applicable management techniques to increase N use efficiency (NUE) and crop productivity. Multi-location experiments conducted in Bangladesh in 2014-2015 have demonstrated several benefits of UDP use including reduced N losses through ammonia volatilization and greenhouse gas nitrous oxide (N2O) and nitric oxide (NO) emissions. Nitrogen loss as N2O and NO emissions were measured continuously throughout rice-growing and fallow seasons using an automated gas sampling and analysis system. Across the years and sites, UDP increased yield on average by 21% as compared to broadcast urea while using at least 25% less fertilizer. UDP reduced floodwater ammonium and ammonia volatilization similar to the control (N0) treatment, while both were significantly higher in broadcast...
Integration of chemical fertilizers with manures improves crop yield and minimizes the detrimenta... more Integration of chemical fertilizers with manures improves crop yield and minimizes the detrimental effects of fertilizers. Here, an effort was made to evaluate the combined effect of organic and inorganic fertilizers on the growth and yield of rice (BINA dhan7). Application of organic and inorganic fertilizers significantly increased the yield attributes as well as grain and straw yields of rice. The treatment T5 (75%RFD + CD 2.5 t ha -1 + PM 1.5 t ha -1 + Com 2.5 t ha -1 ) produced the highest grain yield (5670 kg ha -1 ) and straw yield (6768 kg ha -1 ) of rice. The lowest grain yield (3692 kg ha -1 ) and straw yield (3751 kgha -1 ) were found in T0. Further, it was observed that application of same doses of fertilizers with poultry manure performed better than that of cowdung and compost. The NPKS uptake and use efficiency of BINA dhan7 were markedly influenced by combined application of organic and inorganic fertilizers. Overall, the treatment T6 (50%RFD + CD 2.5 t ha -1 + PM 1....
Nitrogen is one of the most deficient plant nutrients in Bangladesh soils. The use nitrogenous fe... more Nitrogen is one of the most deficient plant nutrients in Bangladesh soils. The use nitrogenous fertilizer especially urea is a commonly used fertilizer for rice production but its efficiency very low about 30-40% under traditional broadcast method A field experiment was carried out in the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aus rice growing season of 2014 to investigate the effects of prilled urea, urea briquettes and NPK briquettes on the growth, yield, and nitrogen use efficiency of BRRI dhan48. There were six treatments as T1 [check (N0P16K42], T2 [Urea briquette (one-3.4 g) (N52P16K42)], T3 (Urea briquette (one-2.7 g (N78P16K42)], T4 [NPK briquette (one-3.4g)(N51P13K32], T5 [Prilled urea (N78P16K42)] and T6 [NPK briquettes(two-2.4 g briquettes (N78P15K42)]. The experiment was laid out in a Randomized Complete Block Design (RCBD) with six treatments and four replications. Prilled urea was applied in two equal splits application; ...
Pour faire face a la demande croissante de bois avec une diminution des terres forestieres dispon... more Pour faire face a la demande croissante de bois avec une diminution des terres forestieres disponibles, un interet progressif est apparu pour developper des plantations d’arbres productives a rotation courte. Au Canada, les plantations de peuplier hybride sont particulierement interessantes puisque la sylviculture intensive courte peut contribuer a un approvisionnement en fibres plus solide, stable et renouvelable. Par ailleurs, l’amelioration genetique est consideree comme l’une des meilleures facons d’accelerer la production de la fibre et d’ameliorer la qualite du bois. Le principal objectif de cette these etait est de caracteriser les proprietes anatomiques et physico-mecaniques de plusieurs clones de peuplier hybride dans une perspective d’evaluer le potentiel de leur bois pour diverses utilisations finales. Cette etude contribue au programme d’amelioration des arbres du peuplier hybride du Quebec pour une croissance plus rapide en y ajoutant des informations sur la qualite du ...
The anatomical properties of seven hybrid poplar clones grown in three sites in southern Quebec, ... more The anatomical properties of seven hybrid poplar clones grown in three sites in southern Quebec, Canada were investigated. Radial and longitudinal variations in selected anatomical properties of wood were measured by image analysis of transverse sections and by fiber quality analysis. Results indicate that all measured anatomical properties varied significantly across sites. Clonal variation was highly significant for all anatomical properties studied, and broad-sense heritability ranged from 0.10 (average vessel lumen area) to 0.76 (cell wall area percentage). Genetic gain was positive for all anatomical properties. The variation in radial pattern was characterized by a rapid increase in the first few years in fiber length, width, and proportion, wall thickness, and percent cell wall area. Ray proportion remained constant, whereas the vessel lumen area and proportion decreased with cambial age.
The experiment was carried out at Sunamganj district during November 2016 to May 2017 to observed... more The experiment was carried out at Sunamganj district during November 2016 to May 2017 to observed the effect of urea fertilizer on the yield of boro rice varieties in haor areas of Bangladesh. Two factors experiment viz. Varieties BRRI dhan29 and BRRI dhan58; and six urea fertilizer levels including: 340 (F1), 320 (F2), 300 (F3), 280 (F4), 260 (F5), and 165 kg ha-1 (F6) [Farmer’s practice (FP)] were used. In case of F1-F5, the MoP-TSP-CaS04-ZnS04 as 127-112-75-11 kg ha-1 were used while Farmers’ practice (FP) was done with only 82 kg ha-1 TSP. The experiment was laid out in two factors randomized complete block design (RCBD) with three farmers’ replications. Data were collected on growth, yield and yield contributing characters of boro rice. Plant height varied at harvest stage in relation to variety and fertilizer. The tillers production hill-1 varied at harvest in case of variety and urea application. Higher plant height was found in BRRI dhan58 (93.9 cm) in comparison to BRRI dha...
Research in Agriculture Livestock and Fisheries, 2019
An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural Unive... more An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during Aman season of 2016 to evaluate the effects of deep placement of N fertilizers in the form of urea super granule (USG) and NPK briquettes in comparison with prilled urea (PU) on nitrogen use efficiency and yield of BRRI dhan49. The soil was silt loam in texture having pH 6.27, organic matter content 1.95% and total N 0.136%. The experiment was laid out in a Randomized Complete Block Design (RCBD) with eight treatments and three replications. The treatments include T1 (Control), T2 (PU, 104 kg N ha-1), T3 (USG, 104 kg N ha- 1), T4 (USG 78 kg N ha-1), T5 (USG, 52 kg N ha-1), T6 (NPK briquettes, 104 kg N ha-1), T7 (NPK briquettes, 78 kg N ha-1) and T8 (NPK briquettes, 52 kg N ha-1). All the treatments except T6, T7 and T8 received 16 kg P and 42 kg K ha-1 from TSP and MoP, respectively. In T6, T7 and T8 treatments, P and K were supplied from NPK briquettes. The PU w...
Asian Journal of Medical and Biological Research, 2016
An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural Unive... more An experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during boro season of 2014 to evaluate the effect of deep placement of nitrogen (N) fertilizers on N use efficiency and yield of BRRI dhan29 under flooded condition. The soil was silt loam in texture having pH 6.27, organic matter content 1.95%, total N 0.136%, available P 3.16 ppm, exchangeable K 0.095 me%, available S 10.5 ppm and EC 348 ?S cm-1. The experiment was laid out in a Randomized Complete Block Design (RCBD) with eight treatments and three replications. The treatments were T1 [Control], T2 [Prilled urea (130 kg N ha-1)], T3 [USG, 130 kg N ha-1], T4 [USG, 104 kg N ha-1], T5 [USG, 78 kg N ha-1], T6 [NPK briquette, 129 kg N ha-1], T7 [NPK briquette, 102 kg N ha-1] and T8 [NPK briquette, 78 kg N ha-1]. All the treatments except T6, T7 and T8 received 25 kg P and 64 kg K ha-1 as TSP and MoP respectively. In T6, T7 and T8 treatments, P and K were supplied from NPK...
A pot-experiment was conducted to examine the effects of elevated soil arsenic (As) on the growth... more A pot-experiment was conducted to examine the effects of elevated soil arsenic (As) on the growth, yield and As concentration of six varieties of Boro (dry season) rice (BR21, BRRI dhan 28, BRRI dhan 29, BRRI dhan 33, Pajam and IRATOM). Two rates of As i@ 0 and 15 ppm with three replications. Arsenic contamination adversely affected the plant height, tillering, panicle length, grains panicle -1 , 1000-grain weight, grain and straw yield of all varieties. The grain yield for no As pots ranged from 39.50 g pot -1 in IRATOM variety to 60.26 g pot -1 in BRRI dhan 29 while for As treated pots such range was 30.50 g pot -1 in BRRI dhan 33 to 48.30 g pot -1 in BRRI dhan 28. The reduction in grain yield due to As contamination was significant for BR21, BRRI dhan 29, BRRI dhan 33 and Pajam. Arsenic concentration of rice grains for no As treatment varied from 0.063 ppm in BRRI dhan 28 to 0.096 ppm in BRRI dhan 29 while such variation was 0.486 ppm in IRATOM to 0.621 ppm in BRRI dhan 33 in As ...
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