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)
07 May 2026 (Vol - 57 , Issue- 05 )
31 May 2026 (Vol - 57 , Issue 05 )
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
Prediction of Total Milk Yield on the Basis of Monthly, Cumulative Monthly Milk Yield and Peak Yield in Sahiwal Cows
The coefficient of determination (R2) value estimates showed an increasing trend from the first month (28.40%) of lactation to the third month (77.37%) and then declined gradually reaching lowest (11.84%) for the tenth individual monthly yield. The rate of increase was maximum during the early part of lactation. Similarly, the rate of decline was also maximum at the later stage of lactation. In the middle of lactation i.e. second, third, fourth, fifth and sixth month of lactation the coefficient of determination (R2) value was more or less similar. The error was minimum for the prediction based on individual third month milk yield and maximum for individual tenth month milk yield. The individual monthly yields in the middle part of lactations i.e. second, third, fourth, fifth and sixth months showed comparatively better accuracy in prediction with minimum error estimates and hence these records may also be used for prediction of 300-day milk yield. From the above discussion it was concluded that the individual third month milk yield records gave the best prediction of 300-day milk yield among the all individual monthly yields as the error variances were lower and the R2 values were also higher.
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).