Agricultural Diversification Research Articles

The impact of tenure security and agricultural diversity on food security

ABSTRACT In the literature, the study of tenure and food security has largely involved separate lines of inquiry. In effect, insufficient research on the relationship between tenure and food security hampers the development of knowledge and policy guidance aimed at improving food and nutrition security. Drawing from this motivation, the authors study the relationships among tenure security, on-farm tree diversity, food security and dietary diversity. They employ Instrumental Variable approaches to examine the effect of tenure security and on-farm tree diversity on food security and dietary diversity. They find tenure security is inversely related with food insecurity as shown by its negative association with hunger scale, hunger index and hunger category. Furthermore, results suggest that tenure security improves minimum dietary diversity of women, while no significant relationship was observed with child dietary diversity. Moreover, on-farm tree diversity is positively related with minimum dietary diversity of women, which may point to higher accessibility and consumption of dietary food groups by women. Besides, the findings suggest that farmers leverage their human capital and land resources to enhance food security and dietary diversity. This underscores the importance of improving land access and ensuring tenure security for promoting on-farm tree diversity, food security and dietary diversity. It also highlights the need to explore the relationship between tenure security and food security. By recognizing the critical role of long-term tenure security, the study suggests that policymaking should gear towards developing strategies to foster on-farm tree diversity in order to improve food security and dietary diversity.

From typology to criteria considered by farmers: what explains agroecological practice implementation in North-Sudanian Burkina Faso?

Cropping systems in the North-Sudanian zone of Burkina Faso face significant challenges related to poor yields, declining soil fertility and harsh climatic conditions. Together these necessitate a shift toward more sustainable farming practices. Agroecology aims to enhance yields while minimizing environmental harm through the use of ecological functions and has been promoted by researchers and farmers’ organizations as a solution. However, its implementation remains limited. This study investigated the criteria farmers consider when implementing agroecological practices at the farm level and how these criteria and their implementation are influenced by farm characteristics. Data collection methods included the serious game TAKIT, together with baseline and complementary household surveys (108 farmers each). Farm diversity was analyzed using a statistical typology. The influence of farm types, farm structural variables and the village location on (1) whether or not agroecological practices were implemented and (2) the criteria considered by farmers was explored. Four distinct farm types were identified: low resource endowed farms relying on off-farm income, low resource endowed farms relying on livestock income, medium resource endowed farms relying on agricultural and livestock income, and high resource endowed farms with diverse sources of income. There were no significant differences in the implementation of agroecological practices across farm types. Crop rotations were the most frequently implemented practice (by 91% of the study farmers), while the 2-by-2 line intercropping of sorghum-cowpea was the least implemented (9% of farmers). Implementation of zai pits varied significantly between villages, with farmers in Nagreonkoudogo more likely to use them than those in Tanvousse, due to differing soil characteristics. Farmers considered several criteria when deciding whether to implement agroecological practices, including the ability to improve yield and preserve soil. Constraints to their implementation included a lack of knowledge and their high labor requirements. These criteria did not differ across farm types, likely because they stem from shared environmental constraints or conditions. The study highlights the complexity of agroecological transitions in sub-Saharan Africa, and illustrates the need to adequately consider contextual conditions. The co-design of new practices, and the redesign of existing ones, should align with criteria considered by farmers.

Exploring the role of a social carrier in advancing agroecology and territorial autonomy

ABSTRACT The practice of agroecology has been promoted as a promising pathway to improve environmental and human well-being. Previous research has shown that farm size is often related to factors that can help or hinder agroecological practice use, but context is key. Here, we examine the relationship between farm size and the use of agroecological practices by assessing 596 management plans for farms associated with the Brazilian participatory agroecology network Rede Ecovida. In contrast to other studies, we found that the probability of using agroecological practices generally did not differ by farm size. We draw on interviews with agroecological actors to contextualize these findings and characterize the relationship between farm size and agroecology, both as a set of practices and a social movement. We suggest that, in this case, the lack of a relationship between farm size and agroecological practices might be explained by Rede Ecovida’s role as a “social carrier” that advances agroecological principles and practices in the pursuit of territorial, or actual, autonomy. This study highlights the importance of the socio-organizational dimensions of agroecological transitions and suggests that increased support should be directed to social networks and participatory certification models to encourage scaling agroecology across diverse farm types and sizes.

Gazing at long-term linkages between agricultural land use and population growth in India: an inverted “U-shape” relationship

Abstract This study investigates the linkages between changes in agricultural land use and population growth in India. We have employed long-term time series and a panel dataset of 1869 samples (267 districts × 7 time points from 1961 to 2021) to determine this. We theorize that there is an inverted “U-shape” relationship between changes in population growth and agricultural land. Our findings suggest a positive impact of population growth on the change in cultivated land. However, this relationship was not static during 1961–2021. We found a two-stage split relationship with a breakpoint in 1981. Prior to the 1980s, there was a 12% expansion in cultivated land in response to a unit increase in population growth. During the post-1980s, with a unit decline in population growth, there was a 5% reduction in cultivated land. The findings were reaffirmed through several robustness checks: analyses using alternative outcome variables, alternative break points in a segmented regression model, and spatial modeling. From a policy perspective, this study advances the need for the reduction of population growth rate in high-fertility states and the adoption of superior and green technology for agricultural intensification and diversification to stop cropland expansion at the cost of environmental sustainability.

The Effect of Sustainable Agricultural Practices, Product Diversification, and Digital Marketing on the Economic Performance of Organic Vegetable Farmers in Bali

The Effect of Sustainable Agricultural Practices, Product Diversification, and Digital Marketing on the Economic Performance of Organic Vegetable Farmers in Bali

The economic value of seasonal weather and climate services for maize farmers in Manicaland Province of Zimbabwe

Most rural areas in Zimbabwe are extremely vulnerable to changing climatic conditions, particularly droughts, which threaten smallholder farmers' livelihoods. Seasonal weather forecast services can help farmers adapt, optimise production, and implement risk reduction strategies. To support increased investment in these services, this study seeks to provide quantitative evidence on the economic value of locality-specific seasonal weather forecasts by eliciting maize producers' willingness to pay (WTP) through the contingent valuation approach. The results of the study show that among 502 farmers, 68 % would pay for seasonal weather forecasts, highlighting their perceived economic value and practical utility in agricultural decision-making. On average, farmers were willing to pay one (1) United States dollar (US$1) per month for seasonal weather forecast services. Extrapolating this demand nationally, we estimate an annual economic value of around US$ 53.2 million for these services. This valuation underscores the substantial economic benefits that weather and climate services could offer to Zimbabwe's agriculture sector, justifying the case for increased resource allocation towards the delivery of location-specific weather forecasts. Using the Heckman selection model, the study further identified that maize producers' climate change perceptions, radio ownership, and prior participation in agricultural policy development significantly increased their likelihood of paying for seasonal weather forecasts. These factors highlight the role of both access to information and engagement in policy processes in shaping farmers' valuation of seasonal weather forecasts. Establishing district-level climate change dialogue platforms can significantly enhance maize producers' awareness of climate change, deepen their understanding of the value of weather forecasts, and encourage their participation in policy-making processes. By creating spaces for knowledge exchange and farmer engagement, these platforms not only support informed farm decision-making but also help tailor climate services to farmers' needs. Nevertheless, farmers from the Ndau ethnic group and those in remote areas showed reluctance to pay for seasonal weather forecasts, indicating that factors like ethnicity and remoteness affect WTP. This reluctance highlights how social marginalisation and inadequate infrastructure in remote areas limit access to weather information, thereby reducing farmers' perceived value of these services. Enhanced telecommunication infrastructure and radio signals in rural areas, especially community radios, could help to expand the access and tailoring of forecast messages in local languages, making it understandable and thus supporting informed decision-making across diverse farming communities.

Geopolitical risks and agricultural trade diversification in Southern Africa: Port‐level evidence from the Russia‐Ukraine war

Geopolitical risks and agricultural trade diversification in Southern Africa: Port‐level evidence from the Russia‐Ukraine war

Urban expansion and livelihood dynamics in peri‐urban Tamale, Ghana

AbstractAt the heart of this paper are concerns for food security and sustainability—two challenges of wide relevance for geographers. Our work focuses specifically on the Guinea northern savanna ecological zone of Ghana, where poverty is grim and livelihood opportunities are limited and the intersection of urban expansion and livelihood dynamics is not well understood. This study analysed trends in and effects of urban expansion on farmers’ livelihoods in four peri‐urban communities around Tamale in the Republic of Ghana. The study employed a mixed methods design comprising quantitative and qualitative methods. It used geospatial techniques, secondary data, and a qualitative study involving 56 heads of households and seven key informants. Results indicate that while the surface area of farmlands reduced by 77% from 1996 to 2023, urban or built‐up areas increased by 93% in the same period. Findings show that while urban expansion reduced the sizes of farmlands, households’ agricultural output, and income, it created nonfarm livelihood opportunities for some households. To minimise the effects of urbanisation‐induced arable land shrinkage, affected households adopted three strategies: agricultural intensification, agricultural diversification, and adoption of nonfarm livelihood activities. Key policy initiatives by the Tamale Metropolitan Assembly are needed to protect agricultural lands to stem declining agricultural production and to ensure livelihood sustainability in the metropolis.

Cropland functional diversity increases ecosystem services supply in watersheds of the Rio de la Plata Grasslands

ContextImplementing heterogeneous rural landscapes with high agricultural diversity and a substantial proportion of natural habitats has been proposed to ensure food production while reducing negative impacts on ecosystem services. However, evidence of an increased supply of ecosystem services (ES) in more heterogeneous landscapes remains limited, with no consensus.ObjectivesTo evaluate the effect of the spatial cropland system’s diversity and landscape configuration on indicators of the supply of ES in agricultural landscapes of the Rio de la Plata Grasslands region.MethodsWe analyzed the relationship between indicators of ES supply and the heterogeneity of 1121 microwatersheds. We assessed the Ecosystem Services Supply Index (ESSI), the Hydrological Yield (HY), and the Absorbed Photosynthetically Active Radiation (APAR) in agricultural areas. We calculated the average grassland patch area, the structural and functional cropland diversity, the cropland percentage, and the grasslands’ juxtaposition to assess landscape heterogeneity.ResultsMicrowatersheds with higher cropland functional diversity showed higher values for indicators of ES supply. They were positively related to the ESSI and APAR, and negatively with HY, indicating positive effects on Carbon gains and water regulation processes. In contrast, grasslands’ juxtaposition had opposite effects to those of cropland functional diversity, so the spatial segregation of grasslands favored the ES supply.ConclusionsFunctional cropland diversification and the segregation of natural grasslands improved proxies of ES and counteracted the negative effects of cropland amount. These findings contribute to the design of multifunctional landscapes and suggest that cropland functional diversity and grassland configuration should be considered in food production systems aimed at preserving ES supply.

Deciphering the ABA and GA biosynthesis approach of Bacillus pumilus, mechanistic approach, explaining the role of metabolic region as an aid in improving the stress tolerance

Bacillus pumilus plays an essential role in agricultural applications as a beneficial microbe and for sustainable agriculture production. However, the underlying mechanisms of B. pumilus strains remain unclear as to how they are beneficial for plants as stress tolerant and growth promoters. Bacillus pumilus was isolated from the rhizosphere soil of Artemisia vulgaris. NGS (next-generation sequencing) was performed for the strain to gain new insights into the molecular mechanisms underlying plant-microbial interactions. NGS revealed 3,910 genes, 3294 genes with protein-coding, and 11 functional genomic regions related to diverse agronomic traits including stress tolerance. We identified the two possible phytohormone biosynthesis approaches from metabolic regions1(terpense→diterpense→betacarotene→xanthoxin→ABA)2(terpense→diterpense→geranyl diphosphate →C20 →GA). Several gene clusters related to the biosynthesis of phytohormones, stress tolerance, and agricultural diversification were predicted. The genome provides insights into the possible mechanisms of this bacterium for stress tolerance and its future applications. The genomic organization of B. pumilus revealed several hallmarks of its plant growth promotion and pathogen suppression activities. Our results provide detailed genomic information for the strain and reveal its potential stress tolerance mechanisms, laying the foundation for developing effective stress tolerance strategies against abiotic stress.

A nuclear phylogenomic tree of grasses (Poaceae) recovers current classification despite gene tree incongruence.

Grasses (Poaceae) comprise c. 11 800 species and are central to human livelihoods and terrestrial ecosystems. Knowing their relationships and evolutionary history is key to comparative research and crop breeding. Advances in genome-scale sequencing allow for increased breadth and depth of phylogenomic analyses, making it possible to infer a new reference species tree of the family. We inferred a comprehensive species tree of grasses by combining new and published sequences for 331 nuclear genes from genome, transcriptome, target enrichment and shotgun data. Our 1153-tip tree covers 79% of grass genera (including 21 genera sequenced for the first time) and all but two small tribes. We compared it to a newly inferred 910-tip plastome tree. We recovered most of the tribes and subfamilies previously established, despite pervasive incongruence among nuclear gene trees. The early diversification of the PACMAD clade could represent a hard polytomy. Gene tree-species tree reconciliation suggests that reticulation events occurred repeatedly. Nuclear-plastome incongruence is rare, with very few cases of supported conflict. We provide a robust framework for the grass tree of life to support research on grass evolution, including modes of reticulation, and genetic diversity for sustainable agriculture.

Drought-tolerant wheat for enhancing global food security.

Wheat is among the most produced grain crops of the world and alone provides a fifth of the world's calories and protein. Wheat has played a key role in food security since the crop served as a Neolithic founder crop for the establishment of world agriculture. Projections showing a decline in global wheat yields in changing climates imply that food security targets could be jeopardized. Increased frequency and intensity of drought occurrence is evident in major wheat-producing regions worldwide, and notably, the wheat-producing area under drought is projected to swell globally by 60% by the end of the 21st century. Wheat yields are significantly reduced due to changes in plant morphological, physiological, biochemical, and molecular activities in response to drought stress. Advances in wheat genetics, multi-omics technologies and plant phenotyping have enhanced the understanding of crop responses to drought conditions. Research has elucidated key genomic regions, candidate genes, signalling molecules and associated networks that orchestrate tolerance mechanisms under drought stress. Robust and low-cost selection tools are now available in wheat for screening genetic variations for drought tolerance traits. New breeding techniques and selection tools open a unique opportunity to tailor future wheat crop with optimal trait combinations that help withstand extreme drought. Adoption of the new wheat varieties will increase crop diversity in rain-fed agriculture and ensure sustainable improvements in crop yields to safeguard the world's food security in drier environments.

Co-benefits of agricultural diversification and technology for the environment and food security in China.

Co-benefits of agricultural diversification and technology for the environment and food security in China.

ASSESSMENT OF AGRICULTURAL LIVELIHOOD DIVERSIFICATION FOR SELF-CARE AMONG FEMALE YOUTH FARMERS IN KADUNA SOUTH LOCAL GOVERNMENT AREA, KADUNA STATE, NIGERIA

The study examined the agricultural livelihood diversification strategies for self-care among female youth farmers in Kaduna South Local Government area of Kaduna State. The specific objectives were to: examine the extent of female youth diversification strategies in agricultural livelihood activities in the study area; examine the extent of use of livelihood income on female youths’ self-care, and determine the factors influencing categories of livelihood diversified among the female youths in the study area. A multi-staged sampling procedure was used in selecting 131 respondents and primary data were collected with the aid of structured questionnaire. Descriptive statistics and Tobit regression model were used for data analysis. The results showed that 44.0% of female youth were engaged in processing and value addition activities while 21.2% of them were engaged in production activities and about (48.0%) of them were engaged in more than one livelihood activities. The findings further revealed that livelihood diversification strategies were influenced by level of education (2.550), agricultural experience (0.001) and number of livelihood activities (0.626) among others. Thus, the study recommends that government and private organization should provide financial support and entrepreneurial training to female youth to boost their capacity to diversify to more and better livelihood activities, thereby keeping them away from youth restiveness

Evaluating Insect Abundance and Diversity in Organic Farming using Solar and LED Light Traps for Sustainable Pest Management

Evaluating Insect Abundance and Diversity in Organic Farming using Solar and LED Light Traps for Sustainable Pest Management

Tourism and farmers' economic transformation: lessons from North Toraja

Farm diversification is becoming increasingly important for farmers in developing countries to improve economic resilience, especially with the increasing instability of agricultural markets. Agritourism, as one of the diversification strategies, can provide farmers with an alternative source of income. However, the factors influencing this diversification decision, particularly in rural areas such as North Toraja, Indonesia, still need to be fully understood. This qualitative research aims to understand the factors that influence farmers' livelihood diversification decisions in North Toraja, focusing on the role of agritourism and its implications for economic resilience and sustainable development. Data was collected through semi-structured interviews with 30 North Toraja farmers who have yet to diversify their businesses. The results showed that farmers' diversification decisions are influenced by several factors, including internal motivation (such as income generation opportunities and lifestyle needs), resource availability (land, capital, skills), market conditions (demand for agricultural products and agritourism services), and accessibility (strategic location and good access). The analysis also revealed that 83% of farmers were motivated by income generation opportunities, while 60% considered capital and location important factors in diversification. Farm diversification through agritourism provides additional income opportunities and contributes to farmers' economic resilience. This research emphasizes that diversification decisions are complex processes influenced by economic, social, and cultural factors. The results of this study provide insights into the dynamics of farmers' diversification decisions and provide policy implications to support sustainable rural development through agritourism.

Diverse Farming Systems and their Impact on Macro and Microelement Content of Vegetables & Crops.

The present study investigates the effect of conventional and organic farming systems on the nutritional profile of crops. Different crops, namely -millet, sorghum, sesame, mustard, fenugreek, berseem, pea, potato, and onion were cultivated through conventional agriculture in which chemical fertilizers like urea, DAP (Diammonium Phosphate) and pesticides were used and organic farming in which organic fertilizers like seaweed and vermicompost were used. The experimental study was done on a field in north India from 2019 to 2021 in six different seasons, and the nutrient profile of the crops with respect to macroelements (S, K, Na, P, Ca, Mg) and microelements (B, Cu, Fe, Mn, Zn, Al) was compared. Macro and microelements were analyzed by Element analyzer and ICP-OES in both types of farming systems. The content of macro, as well as microelements, was found to be significantly higher in all the organically produced crops as compared to the conventionally grown crops. Significant differences were observed in the macroelement content of organic onion (P- 900 mg/kg, K-2000mg/kg) and organic pea (K 2250 mg/kg) as compared to the content of conventionally grown onion (P-756 mg/kg, K- 1550 mg/kg) and pea (K-2000 mg/kg). Similarly, microelement content in the organic sesame (Fe - 3.12 mg/kg), organic millet (Fe- 2.19 mg/kg), and organic potato (Zn-200 mg/kg) was higher as compared to conventionally grown sesame (Fe 2.05 mg/kg), millet (Fe- 1.56 mg/kg) and potato (Zn 167 mg/kg). This investigation concludes that crops with optimum nutritional content can be produced through organic farming with minimum input and maximum production.

Evaluation of Bread Wheat (Triticum aestivum L.) Germplasm for Wheat Rust Diseases Resistance and Yield Performance

The most important biotic constraints for wheat production in Ethiopia are Wheat rust diseases, insects, and weeds. Among wheat rust diseases, stem rust and yellow rust are the more limiting factors for yield. A study was undertaken at Kulumsa and Melkasa in alpha lattice design with two replications from July to December 2023 to evaluate the performance of introduced bread wheat materials from CIMMYT for wheat rust diseases and yield. Data were collected for stem rust, yellow rust, and agronomic traits, including grain yield. The ANOVA showed high and significant genotypic variation (p<0.05) on Days to heading (DTH), Hectoliter weight (HLW), Thousand kernels weight (TKW), and Yield (YLD). Then, the result from LSD mean comparision revealed genotypes: EBW222102 YLD=7.7 t ha-1, EBW222106 YLD= 7.61 t ha-1, EBW222108 YLD=7.66 tha-1, EBW222136 YLD= 7.76 t ha-1 to be significantly higher than the check variety Daka YLD= 6.22 t ha-1 (p<0.05) at Kulumsa. Genotypes: EBW222108, EBW222109, EBW222111, EBW222112, EBW222114, EBW222125, EBW222142, and EBW222143 showed resistance to moderate resistance for yellow rust and stem rust across both locations. About eighteen genotypes were susceptible to stem rust diseases with the coefficient of infection YRCI≥30 at Melkasa. Genotypes EBW222111, EBW222126, EBW222129, EBW222134, and EBW222142 delivered high yield, greater than or equal to 2 t ha-1 at Melkasa. Generally, selection for disease resistance and high-yielding genotypes enable the development and release of noble varieties for wheat-producing farmers.

Hays of Novel-Improved Legume Cultivars: Phytochemical Content and Nutritional Value.

The imperative need to produce safe foodstuffs using environmentally sustainable practices has highlighted the incorporation of legumes in human and animal diets as an emerging nutritional staple. Since legumes comprise a family of plants known to display an extensive agricultural diversity with significant bioactivities, we report herein the exploitation outcome of the nutritional and bio-functional content of hay, derived from the post-harvest aerial parts of eight novel-improved Greek cultivars belonging to the following six taxa: Larthyrus sativus L., Medicago sativa L., Cicer arietinum L., Pisum sativum L., Vicia faba L., and Phaseolus vulgaris L. In specific, the phytochemical content of their hay extracts was screened against the presence of 37 fatty acids and 67 polyphenols using, respectively, GC-FID and LC-MS/MS instruments, while the determination of their total phenolic and tannin contents was achieved with spectrophotometric methods. In this respect, the presence of 26 different fatty acids was detected of which the acids linoleic, linolenic and palmitic were traced in all extracts in concentrations exceeding the 10 mg/g, while the oleic acid was determined as the major component of C. arietinum (77.58 mg/g), V. faba (36.11 mg/g), and L. sativus (12.89 mg/g) extracts. In addition, 30 different phenolics were traced as extracts' components with the most abundant the molecule of isoquercetin, which was present in six extracts and isoliquiritigenin, calycosin, and chlorogenic acid which were detected in five extracts. Finally, the antioxidant properties of the extracts were evaluated by performing both DPPH• and FRAP assays, which highlighted the V. faba extract as the most potent in both tests, followed by the extracts of P. sativum and P. vulgaris. Results herein are indicative of the significant advances achieved, for the improvement of investigated plant cultivars with respect to their utilization as nutritional crops, since these novel cultivars hays have been found to contain significant amounts of essential nutrients in the form of fatty acids along with bioactive ingredients in the form of polyphenols, while simultaneously they were determined as deprived of tannins that constitute essential anti-nutritional factors.

Exploring the Potential of Agriculture Diversification as a Pathway to an Improved Smallholder Livelihood Dietary System in Nepal

Agriculture, a cornerstone of Nepal’s economy, is dominated by smallholder farmers cultivating staple crops under resource and input constraints, leading to declining productivity amid rapid population growth and urban migration. This study explores the role of agricultural diversification in enhancing dietary diversity and improving smallholder livelihoods using panel data from the Nepal Household Risk and Vulnerability Survey (2016–2018). Analysis through the Simpson diversification index and food consumption scores reveals a strong positive correlation between agricultural diversification and dietary diversity. Key determinants include market access, irrigation systems (rainfed or canal-based), input availability (fertilizers and labor), and land type. Dry season crop diversification was positively associated with dietary diversity, while market access showed a significant negative impact on dietary diversity as distance increased. Upland areas exhibited higher potential for diversification, especially in the dry season, driven by improved access to inputs and irrigation. Policy recommendations highlight the need to enhance infrastructure in upland regions, improve market access, and ensure input availability, particularly fertilizers and labor, to support seasonal diversification. Such measures are essential for strengthening food security, nutritional diversity, and economic resilience among smallholder farmers in Nepal.