AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (AMA) (issn: 00845841) is a peer reviewed journal first published online after indexing scopus in 1982. AMA is published by Farm Machinery Industrial Research Corp and Shin-Norinsha Co. AMA publishes every subjects of general engineering and agricultural engineering.
WOS Indexed (2026)
30 Jun 2026 (Vol - 57 , Issue- 07 )
31 Jul 2026 (Vol - 57 , Issue 07 )
Aim and Scope :
AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (ISSN: 00845841) is a peer-reviewed journal. The journal covers Agricultural and Biological Sciences and all sort of engineering topic. the journal's scopes are in the following fields but not limited to:
Agricultural and Biological Sciences
Electrical Engineering and Telecommunication
Electronic Engineering
Computer Science & Engineering
Civil and architectural engineering
Mechanical and Materials Engineering
Transportation Engineering
Industrial Engineering
Industrial and Commercial Design
Information Engineering
Chemical Engineering
Food Engineering
Relationship between the normalized difference vegetation index and dendrometric parameters: a case study for Chettaba Forest (Algeria)
Remote sensing is a means of inventorying, monitoring, and managing natural resources, and it allows for the establishment of development scenarios. It also helps to minimize costs and provides a broader spatio-temporal scope than conventional methods. The objective of this work is to assess the health of the Chettaba forest (located in the northeast of Algeria) and to determine the correlation between the Normalized Difference Vegetation Index (NDVI) and dendrometric parameters. Using Google Earth Engine (GEE) as a powerful tool, this study utilized Landsat 7 and 8 satellite imagery from the years 2001, 2011, and 2023 to delve into the temporal dynamics of NDVI. Dendrometric parameters, namely tree diameter and height, were measured for 16 rectangular plots (30 m × 30 m) covering 0.09 hectares. The results indicate that tree heights varied from 7.01 to 11.62 m, while diameters ranged from 20.30 to 37.60 cm. Tree density (N) varied from 111 to 500 trees per hectare, while basal area (G) ranged from 9.41 to 41.67. Statistical analysis shows a negative correlation between dendrometric parameters and the vegetation index (NDVI) for the year 2011, with observed values ranging (r = -0.51 to -0.63). Furthermore, the study showed a reduction in the NDVI trend in the Chettaba forest between 2001 and 2023, due to climate change and human activity.
A Review on Emerging Insights into Bacterial Leaf Blight of Rice: Diagnostics, Climate Dynamics, and Economic Impact
Bacterial Leaf Blight (BLB), caused by Xanthomonas oryzae pv. oryzae, is a devastating disease that significantly impacts rice productivity, leading to severe yield losses in many rice-growing regions worldwide. This review aims to provide a comprehensive synthesis of recent advancements in the diagnostics, epidemiology, and management of BLB, while examining its economic impact and the influence of climate change on disease dynamics. Traditional diagnostic methods, including visual assessment and bacterial isolation, are being complemented by advanced molecular tools such as PCR, real-time PCR, and CRISPR-based methods, which offer enhanced accuracy and early detection capabilities. Climate variability, including increased temperatures, humidity, and extreme weather events, has been shown to affect the incidence and severity of BLB, facilitating the pathogen's spread to non-endemic regions. Furthermore, the economic burden of BLB management, particularly for smallholder farmers, poses a threat to food security and market stability. Recent case studies from Asia highlight the substantial financial losses caused by BLB, emphasizing the need for integrated management strategies. Advances in host resistance through gene pyramiding and breeding for climate-resilient varieties, combined with biological control and optimal cultural practices, are critical for sustainable BLB management. This review identifies key knowledge gaps, such as the need for novel diagnostic tools, climate-resilient rice varieties, and an improved understanding of pathogen evolution. Policy recommendations are provided to enhance international collaboration and strengthen research and extension services, ultimately aiming to mitigate the economic impact of BLB on global rice production under changing climate conditions.
Perceived effectiveness of the managemental practices followed by Indian livestock farmers to mitigate various disaster situations
This paper explores the Indian livestock farmers’ perceptions about the effectiveness of the managemental practices suggested to mitigate various disasters situations. Ex-post facto research design reinforced with exploratory research was followed. Data were collected from four disaster prone states regarding the management practices being followed by them in Assam and Bihar with regard to flood and flash flood, landslide, cloud burst and cold wave in Himachal Pradesh and Drought in Madhya Pradesh. Semi-structured interviews and focus group discussions at the community level through Participatory Rural Appraisal technique were employed to collect relevant data. By using the Statistical Package for Social Sciences version 26, data obtained through semi-structured interviews were subjected to quantitative analysis to generate percentages for several variables and cross-tabulation analyses between selected variables. Livestock farmers of Assam, Himachal Pradesh and Bihar perceived untethering the animals in case of emergency and storage of fodder at elevated places were the practices followed by all the respondents and majority of the farmers perceived that storage of fodder at elevated places, transporting the animals in pack, immediate reporting the death of animals, pre monsoon vaccination, shifting of large animals to safe places prior to flood were the effective practices in case of flood disasters. In case of drought situations, farmers belonged to Madya Pradesh perceived the practices viz., storage of fodder and feed, reducing the herd size either by selling or by sending them to the relatives and participation in establishment of fodder banks at community level were the most effective practices to overcome the hardship. Overall, the farmers considered the implementation of disaster preparedness at community and village level is the need of the hour. The study concluded that since the livestock farmers were the first victim in any type of animal disasters, training and field tours are to be organized for them to develop their capacity to cope with concerned disasters. Training programmes are to be organized for veterinarians to impart knowledge and skills about animal disaster management to manage disasters effectively.
EFFECT OF NERIUM OLEANDER AQUEOUS EXTRACT ON CULEX PIPIENS LARVAE
Insects vector of viruses or parasites have attracted much research. Some groups of Diptera are responsible for most major diseases. This is the case of Culicidae (Diptera, Nematocera), which in many parts of the world, causing serious harm to both humans and animals through their role potential vectors of infectious diseases such as malaria, yellow fever, dengue fever and African horse sickness. Other Culicidae vector addition to their role, are a real plague through the bites painful and annoying, and thereby constitute a nuisance problem. In Algeria, in urban and suburban areas, the species most frequently encountered is that Culex pipiens, because of its wide distribution and abundance during the hot season causes unbearable nuisance. Unfortunately, attempts at chemical control against this insect often conducted in an approximate never led to the radical elimination of the target insect. Our goal is to make our contribution to try to offer an alternative to chemical control. We then initiated a toxicology study on the fourth stage larvae of Culex pipiens in the evaluation of leaf extracts of Nerium oleonder. Toxicity tests performed on the fourth stage larvae of Culex pipiens revealed after 24 hours, a sensitivity to the plant extract. The analysis of our results shows that the fourth stage larvae of Culex pipiens are susceptible to the extract of Nerium oleonder with an LD50 of 29.51 g / l. In view of its results and in the context of anti-mosquito, this extract could be proposed as natural biocides.
Study on the citrus canker (Xanthomonas axonopodis pv. citri) prevalence in different agro-climatic zones of Jammu region and efficacy of chemical, botanicals and biocontrol agents for its management.
To assess the incidence and severity of citrus canker disease in different districts of Jammu region, a comprehensive survey was conducted across five districts viz. Samba, Jammu, Udhampur, Kathua and Reasi. The results revealed regional and seasonal variations with Samba district of the area exhibited the highest mean Percent Disease Index (PDI) of 50.81% during August-September period which gradually decreased across the months. The pathogen of citrus canker was isolated, identified and confirmed through pathogenicity testing. In vitro evaluation revealed that Bacillus subtilis was the most effective bio-control agent, producing an 18 mm inhibition zone, while among botanicals, neem extract showed the highest efficacy with a 15 mm inhibition zone and copper oxychloride was identified as the most potent fungicide, with a 25 mm inhibition zone, while streptomycin sulfate exhibited the strongest antibacterial activity among antibiotics, achieving a 22 mm inhibition zone. These findings underscore the importance of integrated disease management strategies, combining biological, chemical and botanical approaches to effectively control citrus canker and reduce its impact on citrus production in the region.