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:
Gharana is a small wetland near the international border of India with Pakistan in the RS Pura sector of Jammu, J&K having an area of 0.75 sq. Km. The wetland is facing a severe threat of pollution through various sources which make it unsuitable for feeding and swimming of fish and bird fauna. The main objectives of this paper are to assess the water quality and eutrophication status of the wetland. Water quality monitoring and analysis of the wetland were carried out from 2015 to 2018. The wetland water quality was assessed as per the Bureau of Indian Standards (BIS) standards for drinking purposes, which showed that all the parameters except turbidity were found within the permissible limit. Physico-Chemical analyses of soil and water have been performed and correlation analysis of water quality parameters has been done. The observed data is very limited therefore, getting biased results on applying any computation method is highly likely. Therefore, this study primarily focuses on analyzing the principal contributors in affecting the water quality index. This research uses R programming for experiments and analysis. The results showed that water samples of pre-monsoon fall under the category of very poor water quality while that of post-monsoon fall under the category of unsuitable for drinking. The water quality index readings ranged from 58.92 to 106.66. The lesser minerals in the water also indicated that the water has had less time in contact with the rocks. Further, the analysis of soil samples showed high content of macronutrients viz., nitrogen, phosphorous, and potassium. The eutrophication status of the wetland has been assessed using phosphate data which showed that it is facing the problem of eutrophication which is indicating a necessity of taking regular measures for conservation and restoration.
Horticulture crops are the important part of human’s life as they provide many valuable products. Efforts are continuously going on to improve the quality of these crops by modifying their genome. Previously, researchers have introgressed new traits from their crossable relatives by using conventional breeding. However, the conventional breeding is time-consuming and tedious due to the loss of the genetic diversity by domestication and less availability of the donor species. With the advent of sequencing technology, it becomes easier to screen the genome of the wild relatives. Though, due to the incompatibility of the wild relatives with the cultivated ones, it becomes difficult to introgress new traits by crossing. To overcome these barriers, other techniques including tissue culture, mutagenesis and genetic engineering have been developed to modify the genome of the crops. The combination of these techniques along with the breeding has greatly enhanced the quality and productivity of the horticulture crops. Till date various horticulture crops has been genetically modified and released as commercial varieties. This review insight the techniques of the genome modification used to improve the horticulture crops.
This study was carried out to determine the suitability of the inverted T-type furrow opener of no-till machine used in many areas of the world but has not yet found production and use in our country. For this purpose, inverted T type furrow openers in different sizes and dimensions were designed and produced. Field trials were also made to determine the success of planting of T type furrow opener. Three different inverted T-type furrow openers (115°, 120° and 125° wing angles) and a conventional double disc furrow opener were tested in terms of plant emergence and distribution uniformity in field conditions. In the study; corn was sown by no-tillage planter with four different furrow openers under two different stubble conditions, namely the stand stubble and chopping stubble between 2018-2019 years. In this study, the inverted T type furrow openers were more successful than the double disc opener in terms of both plant emergence parameters and plant distribution uniformity. When the inverted T type openers are compared within themselves, the furrow opener with 125 ° wing angle (5,03 day) was successful in terms of plant emergence parameters and also the furrow opener with 120° wing angle (quality of feed index %87,87) was more successful in terms of accuracy of horizontal plant distribution.
The purpose of the present study to analyze the performance of two different types of hydraulic cab mount systems (HCMs) of a double drum vibratory soil compactor (DVSC) in the direction of improving vehicle ride comfort. Firstly, a drum-vehicle-ground dynamic interaction model of DVSC under the different operating conditions is set up to analyze the ride performance of two different types of HCMs. And then, the mathematical model with the damping characteristic of two different types of HCM with the annular orifice (Type 1) and with the orifice and the annular orifice (Type 2) are set up to determine their nonlinear forces in the vertical direction with are connected with a mathematical model of the whole vehicle. Finally, the performance of two different types of HCMs analyzed and evaluated under the different operating conditions through the objective functions such the time domain and power spectral density (PSD) acceleration responses of the driver’s seat and pitching cab angle. The time domain and PSD acceleration responses of the vertical driver’s seat (as) and cab’s pitch angle (acphi) are chosen as objective functions The obtained results indicate that the peak amplitude values of as and acphi with Type 2 respectively reduce in comparison with Type 1 under the survey conditions that lead to significantly improved the ride comfort of DVSC with cushioning systems with high damping coefficient values. The study results propose a theoretical basis for the optimal design of the cab mount system for earth-moving machinery.
The present study was conducted in Haryana state to find out the economics of crop rotation in the protected structures. In the study area, four cucumber-based crop rotations were found i.e. cucumber + cucumber (R1), cucumber + capsicum (R2), cucumber + tomato (R3), cucumber + lilium (R4). Sonepat, Karnal, and Hisar districts were purposively selected because of the predominance of protected structures. The results obtained in this study indicated that the R4 cropping rotation (₹4838447) has higher cost of cultivation followed by R2 (₹1765041), R3 (₹1760968) and R1 (₹1574530). Gross returns were higher in case of R4 cropping rotation (₹6942780) is a higher cost of cultivation followed by R3 (₹2261224), R2 (₹2215500) and R1 (₹2126250). Net returns were highest in R4 (₹2137185) followed by R1 (₹511720), R3 (₹500255) and R2 rotations (₹450459). The present study also revealed that maximum respondents were adopting R1 crop rotation because of the lesser cost of cultivation and higher net returns.