Mohammad Abu Saleque

Bangladesh Rice Research Institute | BRRI

A 2-year field experiment was conducted to assess system productivity, nutrient use efficiency and apparent balances of phosphorus (P) and potassium (K) in diversified rice-based cropping systems at Gazipur, Bangladesh. Four cropping systems: wheat–fallow–rice, maize–fallow–rice, potato–fallow–rice and mustard–fallow–rice in main plots and four nut...

Lowland rice (Oryza sativa L., cv IR74) was grown in cylinders of a P-deficient reduced Ultisol separated into upper and lower cells by a fine nylon mesh so that the roots formed a planar layer above the mesh. This enabled changes in soil P fractions and other root-induced changes in the soil near the root plane to be measured. In both P-fertilized...

Deceleration in rice (Oryza sativa L.) yield over time under fixed management conditions is a concern for countries like Bangladesh, where rice is the primary source of calories for the human population. Field experiments were conducted from 1990 to 1999 on a Chhiata clay loam soil (Hyperthermic Vertic Endoaquept) in Bangladesh, to determine the ef...

tion in soils and thus, P deficiency occurs in many alluvial Bangladesh soils (Ali et al., 1997), despite the notion Long-term effects of rice (Oryza sativa L.) cultivation with varying of increased P availability after wetting of a dry soil.

The experiment was conducted at Bangladesh Rice Research Institute, Rajshahi during June to November 2009 in order to investigate the minimum tillage effects on crop growth, yield, physical properties of soil, task time, fuel consumption, labor and water productivity. Rice variety BR11 was transplanted in puddled-conventional tillage (CT) and Bed p...

Extensive soil tillage (4-8 passes) is preferred for land preparation for hand sown maize in Bangladesh. Minimum levels of crop residue are retained in the field. Knowledge gaps on conservation agriculture (CA) and insufficient information in rice-maize systems under minimum tillage options. Unavailability of small planting machinery that can handl...

Three field experiments were conducted in the farmer’s fields to evaluate the performance of five genotypes under saline environment. Three advanced breeding lines and two modern varieties were tested. Soil salinity levels throughout the growing period were 1.6 to 3.39 (low), 3.19 to 6.17 (medium) and 3.35 to 7.33 (high) ds/m respectively. Before t...

Given the increasing dairy and poultry industries, cowdung (CD) and poultry manure (PM) might become alternative sources of nitrogen (N) for rice production in South Asia. A field experiment was conducted during dry season (Nov-April) in Chhiata clay loam soil. The experiment aimed to evaluate the effect of N from organic and inorganic sources on d...

p>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 wi...

Published in Rice Research Abstract 2014

Establishment of Soil Science Division in 1970 to study soil-plant relationship influencing growth, mineral nutrition and yield of rice under various agro-ecological conditions and to identify the causes and evaluate the magnitude of soil related constrains on sustainable rice-based cropping systems for developing appropriate soil and fertilizer ma...

Rice–fallow–rice, the dominant cropping system in Bangladesh, has received little attention regarding soil organic carbon (SOC) changes through organic amendments. Understanding the contributions of organic amendments in C sequestration is important for carbon budgeting. This study determined the effect of organic amendments on CO2 emission to the...

Sulfur (S) and zinc (Zn) deficiencies are frequently reported in Bangladesh rice paddy. However, its effects on rice productivity and soil fertility need to be reevaluated as sulfur oxides (SOx) and heavy metals are increasingly emitted to the environment in the recent years. To examine the long-term effects of S and Zn fertilization on rice yield...

The experiment was conducted to examine the nitrogen (N) mineralization pattern of bioslurry and other manures under aerobic and anaerobic soil conditions. Two bioslurries (cowdung and poultry manure) and their original manures (cowdung and poultry manure) @ 3, 5, 10 and 20 t ha-1, respectively, were thoroughly mixed with soil and incubated in aero...

The present investigation aimed to evaluate different fractions of P of Ganges tidal floodplain soils of Bangladesh in terms of plant availability in the selected soil. The samples were analyzed for solution P, labile pool, alkali-extracted inorganic pool, organic pool, acidic pool and residual P.The soil solution P in the tested soils ranged from...

The experiment was conducted to see the phosphorus (P) mineralization pattern of bioslurry under aerobic and anaerobic soil conditions. Two bioslurry (cowdung bioslurry and poultry manure bioslurry) and their original manure (cowdung and poultry manure) at 3, 5, 10 and 20 t ha-1 , respectively were thoroughly mixed with soil and incubated in aerobi...

p>Establishment of huge number of biogas plant in the recent years in Bangladesh creates a burden to disposal of bioslurry. An attempt was undertaken to explore the usability of bioslurry in agricultural crop production under potato-rice system as well as to reduce bioslurry induced pollution. The experiment involved a sole chemical fertilizer trea...

Nitrogen (N), the most limiting nutrient in Bangladesh, for rice has been studied most rigorously, but its contribution to rice seed production remained relatively unexplored. An experiment was conducted during season (November-April) in 2009-10 at the Bangladesh Rice Research Institute experimental farm, Gazipur, Bangladesh, to evaluate the effect...

Over the last two decades, Rice (Oryza sativa L.)-Maize (Zea mays L.) cropping systems have become one of the most dominant cropping systems in Bangladesh. This has coincided with the expansion in use of two-wheel tractors, which has facilitated options for minimum tillage. A three-year trial examined the prospects of conservation agriculture pract...

Conservation tillage technology not only protects natural resources but also provides some economic leverage. The present investigation evaluated two puddle tillages (i) conventional tillage (CT) and (ii) single pass wet tillage (SPWT) and two unpuddled tillages(iii) strip tillage(ST) and (iv) bed planting (BP) to establish rice in the High Barind...

Soil organic matter, nitrogen (N), phosphorus (P) and potassium (K) nutrition of rice-maize cropping systems are important for sustaining crop productivity and food security. An experiment was conducted to determine the effects of tillage practices and residue retention on soil chemical properties in rice-maize cropping system. Conventional tillage...

Lowland rice (Oryza sativa L.) in South Asia is under stress, as nitrogen removals by crops are higher than their replenishment through fertilizers. Limited information is available on optimizing nitrogen dose in lowland rice to turn out higher yield. The present investigation aimed to optimize nitrogen fertilization and it’s response to the growth...

Experiments were conducted in farmers’ fields at Bakergonj, Barisal and Kathaltoli, Potuakhali districts to develop site-specific nutrient management package for high yielding aus rice. The participating farmers delineated soil fertility as the most fertile (grade I), medium fertile (grade II) and the least fertile (grade III) soil. Omissions of N,...

Unpuddled transplanting of rice is gaining attention in Bagnaldesh agriculture. Energy budget is essential for efficient management of the resources in agricultural production. The energy balance under different minimum tillage practices in rice cultivation was assessed during 2009-11 by comparing the parameters: energy input, energy output, energy...

The present investigation assessed the soil organic carbon (SOC) stocks of four AEZs in Bangladesh which included AEZ 1 (Old Himalayan Piedmont Plain), AEZ 3 (Tista Meander Floodplain), AEZ 4 (Karatoya-Bangali Floodplain), and AEZ 9 (Old Brahmaputra Floodplain). Three land types – high land (HL), medium high and (MHL) and low and (LL) – were consid...

The major constraints of agricultural production in the south western coastal areas of Bangladesh are soil and water salinity of varying degrees, lack of fresh water for irrigation, slow soil drying pattern which are being augmented further due to climate change, requires suitable options of farming systems and component technologies. The major con...

ABSTRACT The major constraints of agricultural production in the south western coastal areas of Bangladesh are soil and water salinity of varying degrees, lack of fresh water for irrigation, slow soil drying pattern which are being augmented further due to climate change, requires suitable options of farming systems and component technologies. The...

Various ways of increasing nitrogen (N) fertilizer use efficiency in rice culture has been evaluated by conducting field experiments at Bangladesh Rice Research Institute (BRRI). Nitrogen fertilizer use efficiency in rice culture can be increased by root-zone application of modified forms of urea like urea large granule (ULG) and urea super granule...

Nutritional constraints often restrict yields of field crops in farmers’ fields. Determination of cut-off yield would increase the understanding of yield-limiting nutrients. The present study aimed to determine minimum rice yield target of high-yielding subpopulation in farmers’ fields and to identify the most limiting nutrient in farmers’ fields....

An experiment was conducted at the farmers' fields in the Himalayan Piedmont soil to evaluate the soil test based (STB) fertilizer dose on wheat crop practicing in the rice – wheat cropping sequence during the Rabi season 2002-2003. Three fertilizer treatments: (i) no fertilizer (control), (ii) local farmers' fertilizer management practice (FP) and...

Farmer's Participatory Site Specific Nutrient Management (SSNM) trials were conducted for irrigated, transplanted high yielding rice (Oryza sativa L.) at Barisal district of Bangladesh during Boro season 2012. Four treatments (NPK, PK, NK, and NP) were imposed to observe the response of indigenous nutrient elements on rice yield attributes in order...

This experiment was conducted in the farmer's field to evaluate the performance of a modified planter machine for establishing direct seeded rice during aman and aus seasons in 2010 with four tillage treatments: (i) conventional tillage (CT) (ii) strip tillage (ST), (iii) bed formation (BP) and (iv) zero tillage (ZT). In later three treatments, see...

Farmer's Participatory Site Specific Nutrient Management (SSNM) trials were conducted for irrigated, transplanted high yielding rice (Oryza sativa L.) at Barisal district of Bangladesh during Boro season 2012. Four treatments (NPK, PK, NK, and NP) were imposed to observe the response of indigenous nutrient elements on rice yield attributes in order...

An experiment was conducted at the research farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) during May to September 2008 to investigate the effect of alley widths of Gliricidia sepium and different nitrogen levels on yield of Aus rice (BR24). The experiment was laid out in a split-plot design with three replications. Thre...

Participatory Site Specific Nutrient Management (SSNM) trials were conducted for irrigated, transplanted, and high yielding rice (Oryza sativa L.) during Boro season 2012. Four treatments (NPK, PK, NK, and NP) were commenced to observe the response of indigenous nutrient elements on rice yield attributes in order to develop a site specific nutrient...

Not available DOI: http://dx.doi.org/10.3329/bjar.v37i1.11192 Bangladesh J. Agril. Res. 37(1): 179-184, March 2012

Shortages of water and the rapid spread of two-wheel tractors (2WT) have created the opportunity to develop locally-adapted conservation agriculture (CA) techniques for crop establishment by rice-based smallholders in South Asia. During 2009, the wet season rice (Oryza sativa L.) was transplanted into minimum tillage puddled; unpuddled-bed and stri...

A pot experiment was conducted with four soils from two locations (BAU farm, Mymensingh and BADC farm, Madhupur, Tangail) in order to monitor the transformation of added K (soil solution K, exchangeable K + and non-exchangeable K) in BRRI dhan-41 rhizosphere at saturation condition. There were six levels of K viz., 0, 30, 60, 90,120 & 150 kg/ha fro...

Efficient fertilizer management was proved as a tool for increased crop production in an environmental friendly way. Nutrient response studies determine optimum economic doses for a particular nutrient under specific soil environment. Fertilizers need assessment entails, soil test results and nutrient response models. A few models for fertilizer ra...

Soils of varying K status were selected at the BAU farm, Mymensingh and BADC farm, Madhupur for conducting laboratory, pot, and field experiments to see the dynamics of potassium in wet land rice soils. The soils were BAU-1(0.087 cmol/kg soil), BAU-2 (0.146 cmol/kg soil), Maddhupur-1 soil (0.097 cmol/kg soil), and Madhupur-2 soil (0.706 cmol/kg soi...

A field experiment was conducted through 2001-2004 at the Bangladesh Rice Research Institute (BRRI), Gazipur Farm with a view to determining the contribution of rice straw to K supply and K-use efficiency for the next crop in Rice-Fallow-Rice cropping pattern. Two levels of chemical potassium-0 (K 0) and 66 kg K/ha (K 66) from muriate of potash (Mo...

The delta soils of Bangladesh occur in the coastal region of the Ganges tidal flood plain, the young Meghna estuarine flood plain, the old Meghna estuarine flood plain and the Chittagong coastal plains. Although delta soils constitute some of the most productive lands of the country, their characterization has received little attention, often becau...

Piedmont lands in Bangladesh, India, Nepal, and many other Asian countries are important rice-growing soils, but most of the soils are potentially phosphorus (P) deficient because of low pH. Phosphorus fractions of rice-growing acidic piedmont soils were determined. Soil samples were amended with 100 and 200 mg P kg−1 soil, and a control soil witho...

Salinity in coastal soils and rivers in Barisal region were monitored to assess suitability for Boro cultivation. Soil and water samples were collected from Bakerganj of Barisal to Kuakata of Patuakhali and from Nalchiti of Jhalokathi to Haringhata of Patharghata. Both soil and water sampling were done from December 2007 to April 2008 at every 30 d...

Growing degree day (GDD) of Boro rice varieties has importance for nitrogen management and crop scheduling. Field experiment was conducted at BRRI regional station, Barisal aiming to determine GDD for BRRI Boro varieties. The GDD of the tested varieties varied from 2918 in BRRI dhan45 to 3420 in BR16. The tested varieties received 67-72% of the GDD...