Greenhouse gas implications of novel and conventional rice production technologies in the Eastern-Gangetic plains

Alam, Khairul; Biswas, Wahidul K.; Bell, R.W.

doi:10.1016/j.jclepro.2015.09.071

Cited by 50 publications

(90 citation statements)

References 60 publications

(3 reference statements)

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“…Rice seedling establishment in fully tilled and puddled saturated soils is a major source of greenhouse gas (GHG) emission, particularly methane (Pathak et al, 2011). Avoidance of puddling of soils for establishment of rice can decrease water requirements for growing rice (Mahajan, Timsina & Kuldeep-Singh, 2011;Mahmud, Bell, Vance & Haque, 2017) and decrease GHG emissions (Alam, Biswas & Bell, 2016).…”

Section: Introductionmentioning

confidence: 99%

Partially mechanized non-puddled rice establishment: on-farm performance and farmers’ perceptions

Haque

Bell

2019

Plant Production Science

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Transplanting rice (Oryza sativa L.) seedlings into non-puddled soils with minimum soil disturbance (by mechanized strip tillage) is an opportunity to expand Conservation Agriculture (CA) adoption in ricebased cropping systems. However, the farmer acceptance and on-farm profitability of this technology has not been assessed. Here, we analysed farmer-managed non-puddled transplanting (NT) of rice seedlings in paired comparisons with rice seedlings transplanted in puddled (PT) soil. Sixty-six rainfed monsoon (aman) and 84 dry-season irrigated (boro) rice crops were established by NT and compared with paired PT crops during 2013-2015 in north and north-west Bangladesh. Non-puddled fields were prepared by firstly making 40-60-mm-wide tilled strips with a Versatile Multi-crop Planter, then by 18-24-h inundation with water to soften soils in the strip, followed by transplanting seedlings into strips. The NT crops produced similar or significantly greater grain (boro season of 2015) and straw yields than paired PT crops. The minimum soil disturbance NT did not hinder seedling transplanting of rice or increase the total labour costs for transplanting and weeding compared to PT, rather it reduced the cost of production, and increased net benefit for rice in both seasons relative to PT. Under farmer management on a range of soils and in the two main rice-growing seasons, NT performed as well or better than PT suggesting that this is a feasible option for farmers planning to adopt CA in rice-based cropping systems. Over 3 years, farmers' perception of NT performance shifted from scepticism to mostly favourable.

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Section: Introductionmentioning

confidence: 99%

Partially mechanized non-puddled rice establishment: on-farm performance and farmers’ perceptions

Haque

Bell

2019

Plant Production Science

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“…Most agricultural soils have become vulnerable to tillage-stimulated rapid loss of SOM in the coarse texture soils (Stewart et al, 2007). As the delta country has most of the cropping systems based on rice (Alam et al, 2016b), the puddling of soil for rice crop establishment causes heavy havoc on soil properties by destroying structure of soil. In addition, puddling of soil accelerates decomposition of SOM, increases greenhouse gas emissions (GHGs)and nitrogen loss (Alam et al, 2019b) and inflicts increased costs for upland crop establishment (Bell et al, 2019).In contrary, minimum or zero tillage practice increases SOM levels (Busari and Salako, 2013),enriches nutrients in soils (Alam, 2018) and water retention capacity (Aziz et al, 2013), and decreases production costs (Salahin, 2017) and GHGs (Alam et al, 2019b) by reducing fuel use for intensive tillage and irrigation requirements (Johansen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…al., 2009) has emergedas a holistic alternative agricultural system for its production sustainability, economic viability, environment friendly approach. However, conservation agriculture (CA) is inadequately developed for intensive upland-rice cropping system widely practiced in Bangladesh (Alam et al, 2016b;Salahin, 2017) and the experimentation of CA with different nutrient management practices on soil properties and crop yields under jute-T. Aman rice-onion cropping systems has not been examined in the poorly fertile soils of Bangladesh. With a view to address such issues, the present study was undertaken with the following objectives: i).…”

Section: Introductionmentioning

confidence: 99%

Effects of tillage practices and nutrient management on crop productivity and profitability in Jute-T. aman rice- onion cropping system

Salahin

Alam

Shil

et al. 2019

Bangladesh J. Agric. Res

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Conservation agriculture (CA) with appropriate nutrient management can help increase crop production, improve soil health and bring economic return. An experiment was conducted at farmer’s field of Rajbari district under Low Ganges River Floodplain (AEZ-12) during 2017-2018 to evaluate the effects of tillage and nutrient management on the system productivity and profitability in the jute - T. Aman rice- onion cropping system. Strip tillage (ST) for jute, non-puddling for T. Aman rice and one pass minimum tillage (MT) for onion was contrasted with conventional crop establishment practice (CT). Four different nutrient management practices were NM1: farmer’s practice (FP), NM2: soil test based (STB) fertilizer, NM3:25% extra of STB and NM4: organic amendments (20 % nutrients from cowdung). The experiment was laid out in a split-plot design with three replications by assigning tillage practices in main plots and nutrient management in sub-plots. The yield attributes of jute, T. Aman rice and onion responded similarly to tillage practices. On the other hand, the system productivity and yield of component crops varied due to different nutrient management practices (p<0.05). The highest fibre yield of jute (3.64 t ha-1) was obtained in 25% extra of STB fertilizer dose; the highest T. Aman yield (6.02 t ha-1) and the highest onion bulb yield (16.0 t ha-1) in 20 % organic nutrient management, followed by25 % extra of STB fertilizer dose. The highest system productivity was also produced by 20 % organic amendments (33.6 t ha-1), followed by 25 % extra of STB fertilizer dose (32.3 t ha-1). The lowest yield of crops and system productivity was recorded in FP (28.6 t ha-1).The increased yield of T. Aman rice and onion in 20 % organic amendment by cowdung and ST resulted in the highest net return (NR) and benefit-cost ratio (BCR), while 25% extra of STB and FP under CT gave the lowest NR and BCR. Residual nutrient from successive use of cowdung combined with chemical fertilizers outperformed other management practices in terms of crop yield and economic return. Bangladesh J. Agril. Res. 44(3): 387-399, September 2019

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“…Tillage has both advantageous and unfavorable effects on soil physico-chemical properties and on climate change [1]. Extensive tillage practices may lead to breakdown of soil organic matter (SOM) [2] and undesirable change in soil physical properties [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Tillage and Residue Retention on Soil Properties and Crop Yields in Wheat-Mungbean-Rice Crop Rotation under Subtropical Humid Climate

Salahin¹,

Alam²,

Mondol³

et al. 2017

OJSS

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The effects of conservation agriculture (CA) practices on soil properties along with crop yields of rice-based triple cropping systems have not been adequately assessed in Bangladesh. An experiment was conducted at Bangladesh Agricultural Research Institute, Gazipur, Bangladesh from 2009 to 2012 to assess the effects of tillage practices and crop residue retention on soil physical properties, soil organic carbon (SOC) and crop yields in a wheat-mungbeanrice system. Treatments consisted of three tillage practices (MT: minimum tillage; CT: conventional tillage and DT: deep tillage) and eight levels of crop residue management (S 0 -no residues retention, S r -retention of 30 cm rice straw, S m -whole mungbean stover retention, S W -30 cm wheat straw retention, S mr -whole mungbean stover & 30 cm rice straw retention, S rw -30 cm rice & wheat straw retention, S mw -whole mungbean stover & 30 cm wheat straw retention and S wrm -30 cm wheat and rice straw along with whole mungbean stover retention) were applied in split plot design with three replications. Bulk density (BD) and porosity responded positively to MT and increased residue retention of all crops (p > 0.05). Minimum tillage and S wrm also significantly accumulated SOC (p < 0.05; 0.38% higher than DT with no residue retention) and retained soil moisture (p < 0.05). Minimum tillage practice performed better in upland crops (p < 0.05; wheat & mungbean yields) and CT outperformed MT in wetland rice crop (p < 0.05). The grain and straw yields of wheat and rice were also influenced by previous crop residue retentions (p < 0.05). The results, therefore, suggested that increased residue 2 retention with minimum tillage practices improved soil properties and yield of upland crops but with deeper tillage practices consistently maintained wetland rice production.

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Greenhouse gas implications of novel and conventional rice production technologies in the Eastern-Gangetic plains

Cited by 50 publications

References 60 publications

Partially mechanized non-puddled rice establishment: on-farm performance and farmers’ perceptions

Partially mechanized non-puddled rice establishment: on-farm performance and farmers’ perceptions

Effects of tillage practices and nutrient management on crop productivity and profitability in Jute-T. aman rice- onion cropping system

Effect of Tillage and Residue Retention on Soil Properties and Crop Yields in Wheat-Mungbean-Rice Crop Rotation under Subtropical Humid Climate

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