Managing India's small landholder farms for food security and achieving the “4 per Thousand” target

Nath, Arun Jyoti; Lal, Rattan; Sileshi, Gudeta W.; Das, Ashesh Kumar

doi:10.1016/j.scitotenv.2018.03.382

Cited by 47 publications

(25 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exceptions are where the biomass would otherwise be burned or deposited into landfills. In this context, the recycling of organic wastes from domestic activities and urban areas as organic fertilisers is an opportunity to transfer organic carbon in ways that enhance SOC storage, ameliorate the nutrient content of soils and close nitrogen and phosphorus cycles at regional scales (Chabbi et al, 2017;Minasny et al, 2018;Nath et al, 2018). Use of amendments containing organic carbon in thermally stable forms, (biochar), while being a practical way of recycling organic wastes, may avoid inputs of nitrogen and phosphorus to form SOC because of their low concentrations of both elements.…”

Section: Biophysical Limits and Barriersmentioning

confidence: 99%

“…Adoption of novel practices or systems may also require cultural adaptation, as new practices present risks for farmers, when there is insufficient support from farm advisors or where there are vested interests. Smallholder farmers in developing countries may be less interested in change because they are more vulnerable to impacts on food security and community well-being (Lal, 2018). In some developing countries, gender inequality, social exclusion, lack of land rights and/or tenure security, and lack of education impede the adoption of new practices, compounded by the lack of financial resources (Nath et al, 2018;Corbeels et al, 2019).…”

Section: Socioeconomic Barriersmentioning

confidence: 99%

See 1 more Smart Citation

The 4p1000 initiative: Opportunities, limitations and challenges for implementing soil organic carbon sequestration as a sustainable development strategy

Rumpel

Amiraslani

Chenu

et al. 2019

Ambio

273

114

View full text Add to dashboard Cite

show abstract

Section: Biophysical Limits and Barriersmentioning

confidence: 99%

Section: Socioeconomic Barriersmentioning

confidence: 99%

The 4p1000 initiative: Opportunities, limitations and challenges for implementing soil organic carbon sequestration as a sustainable development strategy

Rumpel

Amiraslani

Chenu

et al. 2019

Ambio

273

114

View full text Add to dashboard Cite

show abstract

“…Information on the spatial distribution of soil micronutrients and their influencing factors are very important for soil management and sustainable agricultural production [1]. Agricultural practices in developing countries like China and India, still consist of small land holdings and intensive cropping [2,3]. It is necessary to understand the spatial variability of soil micronutrients in agricultural areas and improve management practices.…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Variability and the Factors Influencing Soil-Available Heavy Metal Micronutrients in Different Agricultural Sub-Catchments

Zhuo

Xing

et al. 2019

Sustainability

View full text Add to dashboard Cite

Information on the spatial variability of soil-available micronutrients is important for farming and soil management practices. As current knowledge of factors influencing soil available micro-nutrients in the long-term scales is limited, we analyzed 821 and 812 representative surface (0-20 cm) soil samples from five sub-catchments in the Ping Gu intermontane basin in Beijing, China in 2007 and 2017. The objectives of this study were to assess the temporal and spatial distribution characteristics of soil-available micronutrients (Cu, Zn, Fe and Mn) and their relationships with soil's chemical properties. The concentration of available Cu ranged from 1-2 mg·kg −1 distributing over a large area in 2007, but it was more than 2 mg·kg −1 in the hilly regions in 2017. The concentration of available Zn (>5 mg·kg −1 ) increased significantly from 2007 to 2017, and showed an uneven distribution. The distribution of available Fe and Mn decreased from the northeast to the southwest region of the study area between 2007 and 2017, this being consistent with the topography in this area. Soil's available P (AP) had a higher contribution to available Cu and Zn in different sub-catchments. In addition, soil pH had a significant negative influence on available Fe in sub-catchments 1, 2 and 3, and on available Mn in all sub-catchments, except for sub-catchment 4. Moreover, the effects of soil chemical properties on soil-available micronutrients increased in each sub-catchment from 2007 to 2017. We conclude that differences in soil properties and land-use types were the main reasons for the spatial variability of soil-available micronutrients in the Ping Gu intermontane basin.

show abstract

“…Thus, maximizing forest cover and limiting agriculture's impact on atmospheric C play critical roles in limiting global warming to the 1.5 • C increase specified in the Paris Agreement [2]. Agriculture is also expected to play a role in climate change mitigation, but this strategy is limited to augmenting soil C stocks (0-40 cm depth) globally by 0.4% per year, which is indeed an aspirational goal [3,4]. This presents a dilemma in choosing between land use for monocultures of trees that store more C and monocultures of annual crops that store less C but provide major food staples.…”

Section: Introductionmentioning

confidence: 99%

Modeling Experiments for Evaluating the Effects of Trees, Increasing Temperature, and Soil Texture on Carbon Stocks in Agroforestry Systems in Kerala, India

Russell

Kumar

2019

Forests

View full text Add to dashboard Cite

Research Highlights: Agroforestry systems in the humid tropics have the potential for high rates of production and large accumulations of carbon in plant biomass and soils and, thus, may play an important role in the global C cycle. Multiple factors can influence C sequestration, making it difficult to discern the effect of a single factor. We used a modeling approach to evaluate the relative effects of individual factors on C stocks in three agricultural systems in Kerala, India. Background and Objectives: Factors such as plant growth form, management, climate warming, and soil texture can drive differences in C storage among cropping systems, but the relationships among these factors and their effects are complex. Our objective was to use CENTURY, a process-based model of plant–soil nutrient cycling, in an experimental mode to evaluate the effects of individual factors on C stocks in soil and biomass in monocultures (annuals or trees) and agroforestry systems. Materials and Methods: We parameterized the model for this region, then conducted simulations to investigate the effects on C stocks of four experimental scenarios: (1) change in growth form; (2) change in tree species; (3) increase in temperature above 20-year means; and (4) differences in soil texture. We compared the models with measured changes in soil C after eight years. Results: Simulated soil C stocks were influenced by all factors: growth form; lignin in tree tissues; increasing temperature; and soil texture. However, increasing temperature and soil sand content had relatively small effects on biomass C. Conclusions: Inclusion of trees with traits that promoted C sequestration such as lignin content, along with the use of best management practices, resulted in the greatest C storage among the simulated agricultural systems. Greater use and better management of trees with high C-storage potential can thus provide a low-cost means for mitigation of climate warming.

show abstract

Managing India's small landholder farms for food security and achieving the “4 per Thousand” target

Cited by 47 publications

References 47 publications

The 4p1000 initiative: Opportunities, limitations and challenges for implementing soil organic carbon sequestration as a sustainable development strategy

The 4p1000 initiative: Opportunities, limitations and challenges for implementing soil organic carbon sequestration as a sustainable development strategy

Spatio-Temporal Variability and the Factors Influencing Soil-Available Heavy Metal Micronutrients in Different Agricultural Sub-Catchments

Modeling Experiments for Evaluating the Effects of Trees, Increasing Temperature, and Soil Texture on Carbon Stocks in Agroforestry Systems in Kerala, India

Contact Info

Product

Resources

About