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
DESIGN OF AN EFFICIENT APPROXIMATE SUBTRACTOR USING SUBTHRESHOLD ADIABATIC LOGIC
Due to the rise in popularity of ultra-low power applications, the reduction in power dissipation has received more attention. Due to its lower power dissipation, Sub-threshold Adiabatic Logic (SAL) is a technology that can be very beneficial. This paper presents four sets proposed subtractors that have been implemented in 90nm technology utilizing CADENCE Virtuoso software and both the SAL approach and conventional CMOS logic. The proposed subtractors aim to attain lower power dissipation and count transistors while additionally considering design accuracy into account. The circuit parameters have been analyzed, and these circuits are further compared to conventional subtractors. The proposed approximate subtractor APSUB1 is 51% more efficient than the least power dissipated circuit of the recent existing circuit which is APSC6. When comparing the power dissipation using CMOS and SAL technique, there has been a power reduction of 17% for APSUB1 circuit when implemented by SAL. By employing the SAL technique, the proposed subtractors have an efficient improvement in the circuit aspects and a further reduction in the power and area of the design. Eventually useful in agricultural Control engines, because of its low-power and energy-efficient features.
EXPLORATORY SURVEY FOR POTENTIAL SEAWEEDS IN EAST COASTAL REGION OF TAMILNADU FOR LIVESTOCK FEEDING
A new sector for rural economic growth is the seaweed industry, particularly in coastal districts. Along the entire coast of Tamilnadu, there is a total of 5048 hectares that might be used for seaweed farming. Around 1,15,150 MT of seaweed are now in demand in Tamilnadu. However, the actual estimated production is only 13,300 MT. The seasonal availability and prevailing market price of seaweeds were studied through personal interview among 285 respondents and major traders in coastal areas of Tamilnadu to explore the potential seaweeds to be utilized as livestock feed. It was found that Sargassum wightii, Turbinaria ornata, Gracilaria verrucosa, Gracilaria edulis, and Kappaphycus alvarezii were having the potential to be utilized in livestock feeds based on availability and prevailing market price. Further research is needed to identify the nutrient composition, plant secondary metabolites and level of economic inclusion levels of these seaweeds in livestock feeding.
Development and test of automatic alignment system for crawler combine
In order to meet the requirements of first-season rice harvesting in China, aiming at the problems of lack of line-setting function and high crushing rate of first-season rice harvesting in China, an automatic line-setting system of crawler type regenerating rice combine harvester was designed based on the WoDE Triomorong 4LZ-3.0E rice harvester, and the key technologies of mechanical, hydraulic and electronic control were comprehensively used. When the system is applied in the wide and narrow row planting mode, it can ensure that the crawler of the harvester walks in the middle of the wide row to avoid rolling and leaving stubble on the recycled rice, which affects the second season yield of the recycled rice. The system is mainly composed of the row detection unit and the row control unit. The feasibility of the automatic steering control strategy is verified by establishing a mathematical model for the tracked vehicle. After performance verification, the system can automatically correct the line.
In vitro evaluation antagonistic ability of Plant Growth Promoting Microbes against Alternaria solani, causal agent of early blight of tomato.
Present investigation was carried out with a total of four previously isolated antagonist microbes viz., Pseudomons fluorescens, Bacillus subtilis, Bacillus thuringinesis and Trichoderma viride. Results showed that consortia of T. viride, P. fluorescens, B. thuringinesis and B. subtilis has the highest inhibiting capability against the pathogen with 45.92% inhibition followed by T. viride, P. fluorescens, B. subtilis with 37.84% inhibition in vitro. And the lowest inhibition was recorded in treatment of B. thuringinesis alone with 9.62%. Moreover, in net house the highest disease intensity was recorded in control with 84.42% incidence and the lowest incidence (10.27%) was recorded in the treatment of consortia of T. viride, P. fluorescens B. thuringinesis and B. subtilis. Lowest yield was recorded in the untreated control with 0.482kg/plant whereas the highest yield was found in the consortia of four (1.712 kg/plant).
CORONAVIRUS SHUTDOWN'S IMPACT: DRIVEN FARMERS TOWARDS CA PRACTICES
In December of 2019, Wuhan, China, was hit by a new coronavirus infection (COVID-19) caused by SARS-CoV-2. The World Health Organisation (WHO) proclaimed this disease a pandemic on March 11, 2020, and a few days later, the Government of India ordered a total lockdown of the nation as a response to the scarcity of migrant workers caused by the sickness. The purpose of this research was to find out if, during the period of manpower scarcity that occurred during the COVID-19 Shutdown, farmers were more inclined to employ the conservation agriculture (CA) practices like Direct Seeded Rice (DSR) than the alternative, Transplanted Puddled Rice (TPR/Transplanting technique). The Haryana areas of Ambala were the sites of studies on the epidemic and the challenges faced by farmers using it in 2020 and 2021. Twenty five farmers from four different villages were selected at random. To gather empirical data, the 100 respondents were interviewed according to a set timetable, and the results were analysed using standard procedures. Most farmers (77.50%) classified themselves as having a low to medium level of DSR adoption during the Kharif 2020 paddy season, while 22.50 percent classified themselves as having a high level of adoption. During the Kharif 2021 season, 87.50% of farmers were classified as having a Low to Medium level of DSR technology implementation, while 12.50% were classified as having a High level of adoption. In part due to labour limitations during the Shutdown in 2020, farmers appear to have implemented DSR at a little higher rate in 2020 than in 2021. To perform the TPR method of transplanting, farmers need additional helpers, and this migrant labour was easily available before the shutdown. The purpose of this scenario is to encourage the farmer to use a DSR drill or equipment during the quarantine period caused by the epidemic. Since farmers' requirements for it had increased as a result of the limited supply of migrant labour due to lockdowns, the shortage of equipment availability at the time of sowing was the main impediment. Weed infestation, a lack of competence in DSR agriculture, the occurrence of rain prior to germination, a lack of ambition to adapt, etc. were just some of the other, far more important challenges to the adoption of DSR technology by the farmers. At the 0.05 level of significance, the results also showed a positive correlation between DSR technology adoption and characteristics like education, land ownership, access to farm equipment, media exposure, economic motivation, inventiveness, DSR technology training received, extension contact, and risk orientation. In light of these findings, the government should implement more intensive extension efforts to increase farmer awareness and ongoing strong promotional strategies, including better incentives for DSR farmers, in order to encourage the adoption of the recommended practises for DSR.