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Datta, Debarati
- Conservation Agriculture and Resource Management Under Jute (Corchorus spp.) based Cropping Systems in Eastern India
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Authors
Affiliations
1 ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 120, IN
1 ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, Kolkata 700 120, IN
Source
Current Science, Vol 119, No 6 (2020), Pagination: 926-933Abstract
Conservation agriculture (CA) technologies involve paradigm shift from traditional agriculture and include minimum soil disturbance, permanent soil cover through crop residues and crop diversification for achieving sustained productivity and making rational use of resources. The climate-resilient crop management technologies of CA reverse the degradation process inherent to the conventional agricultural practices like intensive agriculture, declining factor productivity and provide opportunities to reduce production cost, save inputs, improve soil properties, make efficient resource use and benefit the environment. For nearly two decades, several researches and policies have been disseminated that made significant multiple ecosystem services in the rice-wheat system of the Indo-Gangetic Plains. Likewise, there is a huge potential of CA in jute-based cropping system in eastern India, and there is an urgent need to frame policies and strategies to promote CA in the jute-growing regions of the country to bring sustenance in its production and quality. This article focuses on the emerging concerns due to the practice of conventional methods, and analyses the scope, constraints and research needs for CA and resource management in jute-based cropping systems of India.Keywords
Conservation Agriculture, Economic Efficiency, Jute-Based Cropping, Resource Management, Sustainability.Full Text
References
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- Reliability-Based Assessment of Doubly Reinforced Beams for Limit State of Collapse
Abstract Views :231 |
PDF Views:70
Authors
Affiliations
1 Department of Applied Mechanics, Visvesvaraya National Institute of Technology, Nagpur 440 010, IN
1 Department of Applied Mechanics, Visvesvaraya National Institute of Technology, Nagpur 440 010, IN
Source
Current Science, Vol 119, No 6 (2020), Pagination: 944-953Abstract
This study examines the reliability levels of doubly reinforced beams designed according to the Indian standard code for plain and reinforced concrete (IS456:2000). Mathematical models were developed for limit state of collapse for flexure and shear according to IS456:2000. The resistance was expressed in the form of limit state of equations and the random variables identified were grade of concrete and grade of steel. The significant load variables considered were dead load and live load. Reliability indices were evaluated using first order reliability method. The analysis was carried out on beams designed for different live load intensities. The effect of reinforcement bar diameter and the effect of limit state equations on the reliability indices were evaluated. The results obtained were compared with international standards. This study evaluates the IS456:2000 provision for beam design from the probabilistic and risk-based analysis point of view. Accordingly, some suggestions have been made for setting the target reliability levels for IS456:2000. This analysis aims to initiate the basic application of reliability to design methodology of the code.Keywords
Beams, Flexure, Reinforced Concrete, Reliability Indices, Shear.Full Text
References
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- Gunny Bag Based Soil Columns for Crop Diversification in Rice Field to Enhance Livelihood Security of Land Scarce Farmers
Abstract Views :217 |
PDF Views:95
Authors
Affiliations
1 ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore 700 120, IN
1 ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore 700 120, IN
Source
Current Science, Vol 119, No 7 (2020), Pagination: 1190-1195Abstract
Crop diversification in waterlogged rice field using gunny bag based soil columns produced 3–4 tonnes of kharif rice, 4.5–5.4 tonnes of rabi rice along with other vegetable crops worth Rs 0.5–3.0 lakh/ha with higher B : C ratio for cucurbits. Crop diversification in rice field using gunny bag/hessian based soil columns increased cropping intensity by 100–200 %, generated additional returns and increased employment opportunities. In this process, nearly 1500 to 5000 number of gunny bags (capacity 50 kg) can be used per hectare rice land in an economical manner. Even if 1.0% (0.4 M ha) of the total rice acreage in India and Bangladesh (40 M ha) is diversified, about 10 lakh tonnes jute fibre will be utilized. It will increase the marketing opportunities of raw jute fibre, provide nutritional and livelihood security to resource-poor farmers.Keywords
Crop Diversification, Economic Benefit, Gunny Bag, Vegetable Production, Waterlogged Rice Field.Full Text
References
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- Cultivation in gunny sack
Abstract Views :200 |
PDF Views:87
Authors
Affiliations
1 ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore 700 121, IN
2 ICAR-Directorate of Onion and Garlic Research, Rajgurunagar, Pune 410 505, IN
1 ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore 700 121, IN
2 ICAR-Directorate of Onion and Garlic Research, Rajgurunagar, Pune 410 505, IN
Source
Current Science, Vol 120, No 10 (2021), Pagination: 1549-1549Abstract
No Abstract.Keywords
No KeywordsFull Text
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