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 Kongzhi yu Juece/Control and Decision 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 present study was undertaken to understand the effects of nitrogen (N) on crop–weed interactions for development of integrated weed management (IWM) systems in onion. The field experiment was conducted in semi-arid conditions at SKN Agriculture University, Jobner (India). Seven IWM practices were tested in main plots and four N doses (0, 50, 100, and 150 kg ha-1) in sub plots. The experiment was laid out in split plot design with three replications using onion cultivar RO 252 during two 2016-17 and 2017-18. It was observed that the interactive use of N doses with IWM practices significantly affected crop dry matter (CDM) and marketable yield. Application of two hand weeding (HW) at 20 and 40 DAT combined with 120 kg Nha-1 was most effective to obtain higher marketable bulb yield of onion followed by pendimethalin (1.0 kg a.i. ha-1) + one HW at 40 DAT in combination with 120 kg Nha-1. The study will be useful to effectively control major weed flora and optimization of nitrogen dose for higher productivity of winter season onion crop in loamy sand soils of semi-arid conditions.
A field study was conducted (2012-14) on “energetics of different cropping systems under resource conservation practices” at the research farm, FSR, Centre, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Main Campus, Chatha, Jammu, India. The experiment was laid out in split-plot design with two crop establishment methods (Minimum/Zero tillage and conventional tillage) and three cropping systems (Rice-Wheat, Rice-Marigold-French bean and Maize + soybean -Wheat) and two fertilizer rates (Rec. Dose of Fertilizer and 75% RDF + 25% N through FYM) with and without mulching in sub-plots under clay loam soil having alkaline in reaction (pH-8.1), medium in soil organic carbon (0.55%) available P (19.20 Kg ha-1 & K(122.0 Kg ha-1) and low in available N (221.12 Kg ha-1) with three replication The maximum input energy (105241 MJ) was recorded under mulched treatment and the maximum EUE was recorded 7.69 % and 7.01 % under maize + soybean - wheat cropping system followed by rice-wheat cropping system (7.49 % and 6.87 %) during first and second year of experimentation, respectively.
The movement characteristics of rice are important indicators to explore the optimal threshing area and threshing force. This paper presents the motion parameters for threshing straw in the tangential and axial threshing units of the combine. Through the study of the optimal threshing area and threshing force, the reasons for the non-threshing of grains were obtained, which provided the basis for the design of the longitudinal and axial threshing drum. By comparing the threshing force and the detachment force of the grain stem, stem branch and branch axis, the threshing ability of each part of the longitudinal and axial threshing drum was obtained. The results showed that the separation force ranged from 1.48N to 2.29N. The straw performs approximately periodic helical motion in the axial threshing device. The grains on the ears are threshed by the ears of 1-6 rows of longitudinal and axial threshing drums. 2-3 rows of beaters produce stalked grains, and the optimum threshing force is 2.06 N-2.15 N to ensure threshing without stalks and branches. The research is of great significance to explore the optimal threshing zone and threshing parameters.
An experiment was conducted during 2018 - 2020 to assess the impact of drip trickle irrigation intervals viz. 3 and 6 day water supply and different dose of hydrogel viz. 30, 60, 90 and 120 g of soil application with black polyethylene mulch on soil properties, growth, yield and fruit quality attributes in Kinnow mandarin (Citrus reticulate Blanco). The combination treatment of drip trickle ir rigation intervals and hydrogel with mulch recorded the maximum moisture percentage followed by sole hydrogel and drip trickle irrigation intervals. The three days intervals water supply through drip trickle irrigation and 90 g hydrogel with mulch recorded favourable results with regards to soil moisture and physico -chemical characteristics of the soil. Three days drip trickle irrigation and 90 g hydrogel with mulch were found to be most effective in producing maximum vegetative growth than rest of the trea tments. Plant treated with three days drip trickle irrigation and 90 g hydrogel with mulch recorded maximum yield (9290.76 and 9518.72 kg ha -1), followed by three days drip trickle irrigation and 120 g hydrogel with mulch (8973.84 and 9212.92 kg ha-1) while minimum in control plant (5615.60 and 5924.18 kg ha-1) under two year experimentation. Hydrogel retain water and nutrients, when release to the plants surrounding soil near root zone of starts to dry up and black polyethylene mulch is poor aeration and non-decomposable nature. The improving yield due to fact that soil was wet for a longer time in summer season for improving soil moisture levels and fruit quality in subtropical ecosystem.
Indian economy is an emerging economy, but it is still an agricultural economy because here, most people earn their livelihood from agriculture. The present study for temporal changes in Rajasthan time series, data on area, production and yield per hectare of food grain crops were collected from 1976-77 to 2018-19. Rajasthan state as a whole was selected for the study. The time-series data were collected on area, production, and yield of selected seven Rajasthan crops from the Directorate of Economics and Statistics (DES), Directorate of Agriculture (DOA) and Rajasthan State Agriculture Department. The crops included were wheat, barley, maize, bajra, gram, moong and urad. The area under selected crops in Rajasthan changed remarkably from 1976-77 to 2018-19. The area under barley was reduced, which was shifted towards pulses, oilseeds and cereal crops like moong, urad, soybean, rapeseed & mustard and wheat. The area under wheat, maize, bajra moong and urad had increased during the study period. During the study period, the average total production and yield increased to unprecedented levels in all the selected crops. The area under gram and barley reduced during the study period. Therefore, technological support through varietal improvement and extension support is required.