Person: Singh, R.
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
Singh
First Name
R.
Name
Singh, R.
ORCID ID
0000-0003-4282-764X 8 results
Search Results
Now showing 1 - 8 of 8
- Risk-return trade-offs in diversified cropping systems under conservation agriculture: Evidence from a 14-year long-term field experiment in north-western India(Elsevier B.V., 2025) Nayak, H.; Mkondiwa, M.; Patra, K.; Ayan Sarkar; Reddy, K.S.; Kumar, P.; Bharadwaj, S.; Singh, R.; Parihar, C.M.
Publication - Corrigendum to “Cost-effective opportunities for climate change mitigation in Indian agriculture” [Sci. Total Environ. 655 (2019) 1342–1354](Elsevier B.V.) Sapkota, T.B.; Vetter, S.H.; Jat, M.L.; Smita P.S. Sirohi; Shirsath, P.B.; Singh, R.; Jat, H.S.; Smith, P.; Hillier, J.; Stirling, C.
Publication - Using Sentinel-2 to track field-level tillage practices at regional scales in smallholder systems(MDPI, 2021) Weiqi Zhou; Preeti Rao; Jat, M.L.; Singh, B.; Poonia, S. P.; Bijarniya, D.; Kumar, M.; Singh, L.K.; Schulthess, U.; Singh, R.; Jain, M.
Publication - Agricultural labor, COVID-19, and potential implications for food security and air quality in the breadbasket of India(Elsevier, 2020) Singh, B.; Shirsath, P.B.; Jat, M.L.; Mcdonald, A.; Srivastava, A.; Craufurd, P.; Dharamvir Singh Rana; Singh, A.K.; Chaudhari, S.K.; Sharma, P.C.; Singh, R.; Jat, H.S.; Sidhu, H.S.; Gerard, B.; Braun, H.J.
Publication - Cost-effective opportunities for climate change mitigation in Indian agriculture(Elsevier, 2019) Sapkota, T.; Vetter, S.H.; Jat, M.L.; Smita P.S. Sirohi; Shirsath, P.B.; Singh, R.; Jat, H.S.; Smith, P.; Hillier, J.; Stirling, C.Long-term changes in average temperatures, precipitation, and climate variability threaten agricultural production, food security, and the livelihoods of farming communities globally. Whilst adaptation to climate change is necessary to ensure food security and protect livelihoods of poor farmers, mitigation of greenhouse gas (GHG) emissions can lessen the extent of climate change and future needs for adaptation. Many agricultural practices can potentially mitigate GHG emissions without compromising food production. India is the third largest GHG emitter in the world where agriculture is responsible for 18% of total national emissions. India has identified agriculture as one of the priority sectors for GHG emission reduction in its Nationally Determined Contributions (NDCs). Identification of emission hotspots and cost-effective mitigation options in agriculture can inform the prioritisation of efforts to reduce emissions without compromising food and nutrition security. We adopted a bottom-up approach to analyse GHG emissions using large datasets of India's ‘cost of cultivation survey’ and the ‘19th livestock census’ together with soil, climate and management data for each location. Mitigation measures and associated costs and benefits of adoption, derived from a variety of sources including the literature, stakeholder meetings and expert opinion, were presented in the form of Marginal Abatement Cost Curves (MACC). We estimated that by 2030, business-as-usual GHG emissions from the agricultural sector in India would be 515 Megatonne CO2 equivalent (MtCO2e) per year with a technical mitigation potential of 85.5 MtCO2e per year through adoption of various mitigation practices. About 80% of the technical mitigation potential could be achieved by adopting only cost-saving measures. Three mitigation options, i.e. efficient use of fertilizer, zero-tillage and rice-water management, could deliver more than 50% of the total technical abatement potential.
Publication - The conservation agriculture roadmap for India: policy brief(ICAR, 2018) Jat, M.L.; Biswas, A.K.; Pathak, H.; Mcdonald, A.; Patra, A.K.; Acharya, C.B.; Sharma, P.C.; Chaudhari, S.K.; Singh, R.; Bhaskar, S.; Sharma, R.; Jat, H.S.; Agarwal, T.; Gathala, M.K.; Pal, S.; Sidhu, H.S.; Yadvinder-Singh; Chhokar, R.S.; Keil, A.; Saharawat, Y.S.; Jat, R.K.; Singh, B.; Malik, R.; Sharma, A.R.; Parihar, C.M.; Das, T.K.; Singh, V.K.; Jat, S.L.; Jha, B.K.; Pratibha, M.; Singh, P.; Singh, R.C.; Choudhary, O.P.; Sharma, S.; Satyanarayana, T.; Sidhu, B.S.; Gehlawat, S.K.; Sen, S.K.; Singh, A.K.; Sikka, A.K.Agriculture remains central to the Indian economy, providing livelihood to the majority of its population. Though Indian agriculture have made spectacular progress for food self-sufficiency, yet growing challenges of large management yield gaps, low water and nutrient efficiency, imbalance and inadequate use of external production inputs, diminishing farm profits, deterioration of soil health and environmental quality coupled with climate risks are major concerns. Feeding a growing population with increasing dietary preferences for resource-intensive food products is a major challenge. Moreover, with no scope for horizontal expansion of farming to produce needed food; improving agronomic productivity and achieving high and stable yields under changing and uncertain climate are important for feeding the growing population. Increasing climatic variability affects most of the biological, physical and chemical processes that drive productivity of agricultural systems. The productivity and stability of agricultural systems depends upon measurable factors and processes controlled by climate and non-climate drivers of production paradigm. It is therefore vitally important to develop strategies and practices to sustainably increase food production while increasing farm income, protecting natural resources and minimizing environmental footprints.
Publication - Framework, guidelines and governance for designing local adaptation plan of action to mainstream climate smart villages in India(CIMMYT, 2016) Aryal, J.P.; Singh, R.; Gehlawat, S.K.; Agarwal, T.; Jat, M.L.The major challenges being faced by Agriculture globally are degradation of natural resources and increasing frequency of climate change induced risks. In pre-green revolution period, the farmers practiced a more resilient agriculture that inherently adapted to climate variability through optimal use of biodiversity i.e. a careful selection of crop mix to suit the condition of water scarcity, drought and cold wave etc. But the present day intensive agriculture faces the daunting challenge of transforming itself for providing enough food in an ecologically sustainable manner in view of existing uncertainties about regional and local impacts of climate change. To overcome the situation, there is a need to engage diverse stakeholders in preparation of coherent policies that take advantage of rapid advances in Science and Technology and incentivize their adoption to stimulate a behavioral change and align them for action at different levels. The adaptation process will require validation and tailoring various strategies at regional to farm level due to variations in resource endowments viz soils, tools and technologies etc.
Publication - Operational manual for turbo happy seeder: technology for managing crop residues with environmental stewardship(CIMMYT, 2013) Jat, M.L.; Kapil; Kamboj, B.R.; Sidhu, H.S.; Singh, M.; Bana, A.; Bishnoi, D.K.; Gathala, M.K.; Saharawat, Y.S.; Kumar, V.; Kumar, A.; Jat, H.S.; Jat, R.K.; Sharma, P.C.; Sharma, R.; Singh, R.; Sapkota, T.; Malik, R.; Gupta, R.K.Multiple challenges associated with plough based conventional production practices that include deteriorating natural resources, declining factor productivity, yield plateau, shortages of water & labour and escalating costs of production inputs coupled with emerging challenges of climate change both in irrigated intensive systems as well as low intensity rainfed ecologies are the major threat to food security of South Asia (Jat et al, 2009; Ladha et al, 2009; Chauhan et al, 2012). Water and labour scarcity and timeliness of farming operations specially crop establishment under the emerging climatic uncertainties are becoming major concerns of farming all across farmer typologies, production systems and ecologies in the region (Chauhan et al, 2012). In many parts of South Asia, over-exploitation and poor management of groundwater has led to declining water table and negative environmental impacts. Conventional tillage based flooded rice receiving the largest amount of fresh water compared to any other crop is the major contributor to the problems of declining groundwater table ranging from 0.1– 1.0 m year-1 specially in north-west India and increasing energy use and costs. The problem has further been intensified with the unavailability of labour in time, and multi-fold increase in labour costs. Fragmented land holdings and nucleus farm families further exacerbates the problem of availability of farm labour. Potential solutions to address these issues include a shift from intensive tillage based practices to conservation agriculture (CA) based crop management systems (Saharawat et al, 2010; Jat et al, 2012; Gathala et al, 2013). Direct drilling (seeding/planting with zero tillage technology) is one such practice that potentially addresses the issues of labor, energy, water, soil health etc (Malik et al 2005; Gupta and Sayre, 2007; Jat et al, 2009; Ladha et al, 2009; Gathala et al, 2011; Jat et al, 2013) and adaptations to climatic variability (Jat et al, 2009; Malik et al, 2013). One of the key elements of CA is rational soil cover with organics (crop residues, cover crops etc) has greater relevance not only in terms of managing the agricultural waste but particularly for eliminating burning, improving soil health, conserve water, help in adaptation to and mitigating of climate change effects. Globally, annual production of crop residues is estimated at 3440 million tonnes of which large quantities are not managed properly. In India alone, more than 140 million tonnes of crop residues are disposed of by burning each year. In rice-wheat system of the IGP of South Asia, the disposal of rice residues is one of the major challenges due to poor quality for fodder, bioconversion, and engineering applications. In most combine harvested rice fields of western IGP, the rice residues are burnt before planting of wheat. The field burning of crop residues is a major contributor to poor air quality (particulates, greenhouse gases), human respiratory ailments, and the death of beneficial soil fauna and micro-organisms. During burning of crop residues around 80% of carbon is lost as CO2 and a small fraction is evolved as CO. Burning involving incomplete combustion can also be a source of net emissions of many greenhouse gases including CO, CH4, SO2 and N2O. Crop residue burning accounts 6.6 million tonnes of CO2 equivalent emission annually in India (INCCA, 2010). Apart from loss of carbon, up to 80% loss of N and S, 25% of P and 21% of K occurs during burning of crop residues (Ponnamperuma, 1984; Yadvinder-Singh et al., 2010). For managing residues of combine harvested crops and field (loose as well as anchored) as surface mulch and realize multiple benefits of improve crop yields, conserve soil moisture, saving of irrigation, buffer soil temperature, improve SOC, adapt to terminal heat effects in addition to environmental benefits through eliminating burning, ‘Turbo Happy Seeder’, is now available, which is capable of direct drilling (ZT) into heavy surface residue loads in a single operation. Many of the farmers in India and elsewhere have started using Turbo Happy Seeder for residue management. However, one of the major constraints in large scale adoption of this technology as well as sub-optimal use efficiency of planter is the lack of skills/knowledge on operation, calibration and maintenance of the machinery. There are different field situation specific adjustments needed before the use of the machine in the field. These adjustments include proper seeding depth, fertilizer rate and the seed rate etc as per the crop and field conditions to realize the potential benefits of the technology. There are several machinery manufacturers who supply these planters but the operational manuals are not available for making adjustments, calibrations under local conditions. In absence of the proper operational guidelines and protocols for efficient use of this machine by the farmers, service providers, extension agents, many a times the desirable results are not achieved and even contradictory results are observed. This results in slow down the adoption rates of the technology. Also, in absence of simple guidelines for maintenance of the machine, the farmers/service providers need to make huge investments on repairing at the start of the season. Therefore, we attempted to develop an operational manual to provide simple guidelines for calibration, operation, maintenance and troubleshooting for efficient use of turbo happy seeder by the range of stakeholders including farmers, service providers, extension agents and researchers.
Publication