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. Azerbaijan Medical Journal Gongcheng Kexue Yu Jishu/Advanced Engineering Science Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery Interventional Pulmonology Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) Zhonghua yi shi za zhi (Beijing, China : 1980)
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:
The occurrence of diverse soil types necessitates their scientific characterisation in order to understand their potential and problems in the production of crops and land resource management. For this purpose, six typical pedons in selected were undertaken from three different physiographic zones to study various morphological, physico-chemical and fertility parameters. The soil samples collected were analyzed as per standard procedures. The soils were moderately deep to very deep in depth, light yellowish brown to dark brown in colour, predominantly clay loam and silt loam to loam clay and occasionally sandy loam in texture, slightly acidic to slightly alkaline in reaction in (pH 6.6 to 7.53); normal electrical conductivity (0.18 – 0.48 dSm-1) and low to high in organic carbon (0.12 to 1.28%). The values of cation exchange capacity (CEC) were moderate were moderate (13.16 to 17.85 Cmolkg-1), dominated by exchangeable calcium (74%) followed by Mg, K and Na (Ca++ >Mg++> K+>Na+) with base saturation (BS %) values of 73.16–7.20% in high followed by mid (65.69–68.70%) and low altitudes (61.30–63.32%). Soils were high in available N, P, K, Mg, Zn, Cu, Mn and Fe; medium in Ca and S and low in S and B. For nutrients the spatial variability (CV %) ranges from 2.75 to 30.10% in soil and 2.50 to 26.20% in leaf with significant magnitude among some micronutrients along altitude and depth factors. A significant and positive correlation of available N, P, K, Ca, Cu, Mn, Fe, and B with their corresponding leaf nutrients was recorded. Nutrients like N, P, Ca, S, Zn, and Fe observed significant and positive relationship with fruit yield. The soils under study were classified as Inceptisols and Entisols in the USDA system of soil classification. A linear regression model (R2) suggested the combined effect of soil parameters (pH and OC with R2 = 0.7634 and 0.3069) on the yield performance of the pear orchards in the area.
Significant traction energy consumption for electrified train operation has posed a great challenge to metro systems, so seeking energy saving solutions is necessary. Among many energy-efficient operation methods, this paper proposes two combined energy saving solutions: applying Pontryagin's maximum principle for determining the optimal speed profile with fixed trip time in an aim at operating trains to track this optimal speed profile, and using active rectifiers replaces diode rectifiers in traction substations to recuperate regenerative braking energy as the electric trains track the optimal speed profile. Designing control for active rectifiers includes three control loops: the current control loop with sliding mode control, the voltage control loop, and phase-locked loop (PLL) enable energy to flow bi-directionally. When trains operate in braking phases, active rectifiers back the regenerative braking energy to utility source. Simulation results with data collected from metro line Cat Linh-Ha Dong, Viet Nam conducted on Matlab/Simulink have evaluated saving energy for the whole metro line is up to 11.96% compared with consumption energy without using any saving energy solutions.
A field experiment was conducted at Horticulture Farm, SKNCOA, Jobner during 2015-16 and 2016-17. In this study, four different varieties viz., Pusa Jwala, Pusa Sadabahar, Pusa Dipti and Amulaya and three germplasms NU-7078, NP-46A and G-S of chilli were raised and transplanted in third week of July. Roots of chilli seedlings were dipped in hundred ppm solution of salicylic acid for 30 minute before transplanting and same concentration of salicylic acid was also sprayed on all varieties before flowering and per cent disease intensity was noted 90 days after sowing. The peroxidase activity was increased (28.95%) in infected plants of Pusa Sadabahar variety followed by Pusa Depti (20.59%), NP-46A (19.35%) and Amulya (18.18%) while it was minimum in Pusa Jwala (9.09%) as compared to healthy ones. Minimum disease intensity was recorded in Pusa Sadabahar (7.93%), as it was also resulted in maximum increase in peroxidase, while higher per cent disease intensity was recorded in Pusa Jwala (43.4%), which resulted in minimum increase in peroxidase. The polyphenol content was increased maximum (23.68%) in infected plants of Pusa Sadabahar variety followed by Amulya (20.69%), NP-46A (17.14%) and it was found minimum in Pusa Jwala (13.04%) as compared to healthy ones. Phenol content was increased maximum (23.53%) in infected plants of Pusa Sadabahar variety followed by NP-46A (20.45%), G-S (14.29%), NU-7078 (12.50%) and it was recorded minimum in Pusa Jwala (12.00%) as compared to healthy ones.
Pineapple is a fruit crop that constantly contribute to Malaysian agricultural GDP. Local pineapple industry is dominated by smallholders who are largely ill-equipped with ICT and modern technology. Sarawak as the nation’s second largest producer after Johor, has a substantial yet declining size of agriculture, forestry, and fishing workforce. Therefore, the state needs to capitalise on the increasingly accessible e-agriculture technology and high value crop such as MD2 pineapple (Ananas comosus var. MD2) to optimise yield and workforce. Efficient fertiliser management is essential to ensure sufficient and timely usage of fertiliser and related resources. Therefore, the AnanasApp mobile app is introduced as a tool to boost ICT application in local pineapple industry. AnanasApp that is built for the Android platform, is designed to assist with fertiliser management across all pineapple farming scales by identifying fertiliser requirements and costs per crop cycle, and guiding users to systematic fertilisation application. Equipped with important features such as simplicity, ease of use, user-friendliness, and high level of accessibility, the app can also attract younger pineapple growers and subsequently sustain the industry’s workforce.
A field experiment entitled “Effect of Weed Management Practices on weed control efficiency, yield and economics of transplanted rice was conducted during Kharif 2016 at Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, U. P. (India) to find out the impact of different herbicides on weed flora, yield and economics of transplanted Rice (Oryza sativa L.). Among weed management practices sole application of Pyrazosulfuron fb Bispyribac Sodium (150 g a.i ha-1 PE fb 25g a.i ha-1 POE), Pyrazosulfuron (150 g a.i ha-1 PE), Butachlor (1.5 kg a.i ha-1) obtained selectivity towards broad leave weeds, whereas Oxidiargyl (100 g a.i ha-1 PE), Anilophos fb Bispyribac Sodium (400 g a.i ha-1 PE fb 25g a.i ha-1 POE), Pyrazosulfuron fb Bispyribac Sodium (150 g a.i ha-1 PE fb 25g a.i ha-1 POE) performed selectivity towards narrow leave weeds, respectively. Similarly, Pyrazosulfuron fb Azimsulfuron (150 g a.i ha-1PE fb 30 g a.i ha-1 POE) recorded selectivity towards narrow leave weeds. Among weed management practices, this research finding indicates that the application of Pyrazosulfuron fb Bispyribac Sodium (150 g a.i ha-1 PE fb 25g a.i ha-1 POE) proved to be the most effective in minimizing the total weed density (5.0,6.26 and 6.10 m-2), biomass of weed and enhancing the weed control efficiency (74.96 %), grain yield (46.20), net return (47902) and benefit ratio (2.27) which have the potential of being used as best combination of herbicides. Effective weed control practices could be used for the better production of transplanted rice in Typic Ustochrept soil of Uttar Pradesh.