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. Shenyang Jianzhu Daxue Xuebao (Ziran Kexue Ban)/Journal of Shenyang Jianzhu University (Natural Science) General Medicine (ISSN:1311-1817) Chinese Journal of Evidence-Based Medicine Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption
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:
Meteorological indices viz. growing degree days (GDD), helio thermal unit (HTU), and photo-thermal unit (PTU) based on air temperature are used to describe changes in phenological behavior and growth parameters. Plants have a definite heat requirement before they attain certain phenophases. A change in temperature during phenophases of a crop adversely affects the initiation and duration of different phenophases and finally the economic yield. Among the different management factors, sowing time plays a key role in obtaining higher yield. The objective of this study was undertaken to find out the optimum sowing window and the amount of heat units required to change their phonological development for groundnut variety VRI 2. A field experiment was conducted at experimental farm of Agricultural College and Research Institute, Eachangkottai during Margazhi pattam 2019 and 2020. The experiment was conducted in Randomized Block Design with four replication. Different morphological indices were observed like plant height, number of branches, dry matter and number of pods and yield attributes and yield of groundnut VRI-2 was recorded. The heat unit concept of Growing Degree Days also worked out for individual sowing windows. Among the sowing dates, Fifth January, recorded essential GDD of 1651.3°C and higher growth attributes, yield attributes and yield of groundnut (2370 kg ha-1).
The destruction of horizontal greenery has resulted in the development of an innovative technique called verticalgreening. It is a technique to bring back the lost greenery on the facades of the building for its numerous benefits in building and urban scale levels. However, due to lack of awareness and technical knowledge, its adoption is restricted, with the majority of its application for aesthetic purpose. Though there are numerous researches conducted to evaluate the thermal performance of vertical greening across the globe, there are only few researches performed to examine the thermal performance of vertical greening in hot and humid climate of Chennai using native edible and herbal plants. Vertical greening is of two types, Greenfaçade and Living wall. In Green facade, vines grow using simple support system to cover the entire wall from the growing medium placed at the base level. In living wall, a complex structural system holds the growing medium and the plants parallel to the wall. The temperature reduction of the green facade is directly dependent on the leaves size, thickness and density while in the case of livingwall, temperature reduction is influenced by multiple factors such as the soil medium, supporting structure, and varieties of plantsused. Even though researchers have proved that living wall reduces more temperature than Green facade, this research aims to establish that temperature reduction of the green facade depends on the type of plant species and its foliage density. This research aims to explore the thermal performance of Green facade using two different plant species with different physical parameters. An experimental methodology was used to measure the surface temperature behind the Green facade along with which the indoor temperature and humidity was measured. The experiment was conducted on the terrace of a residence located in Tambaram, Chennai for three days from 22 -24th September 2022. Three small-scale test boxes were used. Two test boxes were treated with two different plants while one box was kept as a bare model (Benchmark) for the comparison. The study plants are Clitoria ternatea (butterfly pea) and Basella rubra (Indian spinach), both of which are native to India and most commonly seen in Chennai. These plants are chosen for their longer lifespan, low maintenance, fast growth, and heattolerance. The analysis and the findings of the research showed that the surface temperature behind the Basella rubra and Clitoria ternatea was reduced by 7deg c and 4 deg c. The maximum indoor temperature reduction for Basella rubra and Clitoria ternatea was 3.6 deg c and 2.4deg c proving that the thermal performance of Green facade in reducing the surface and indoor temperature differs depending on the plant species used. Denser the foliage with succulent leaves of Basella rubra showed more temperature reduction than Clitoria ternatea which had smaller leaves with thin foliage coverage.
Radish mostly forage radish (Raphanus sativus L.var. longipinnatus) cover crop (CC) being a short-duration crop can be easily incorporated into the vegetable cropping system for sustainable production of vegetable crops. In the present experiment, the incorporation of forage radish CC biomasses before and after the harvest of vegetable crops provided numerous benefits. Vegetative growth and yield attributing parameters in terms of plant height, branch number, average fruit number, average fruit weight, stem diameter etc. of okra, bitter gourd, chilli, dolichos bean, amaranthus and cowpea were found to be higher in CC treatment compared to bare fallow control devoid of CC. Among the different levels of CC used complete ground cover with cent percent CC recorded better in terms of growth and yield attributes compared to 75 and 50 percent surface cover. The yield of vegetable crops in the cropping system was found to be positively influenced by the levels of forage radish CC compared to the non-adoption of CC in the control. The crop duration of the vegetable crops was also enhanced by the use of CC compared to control devoid of CC, and the harvesting duration of vegetable crops was prolonged due to the use of CC. For sustainable vegetable crop production with 200% vegetable cropping intensity in the sandy soil of Gossaigaon, Assam, India forage radish CC (Raphanus sativus var. longipinnatus), syn. Daikon or Japanese radish can be used as CC before sowing spring-summer and summer season vegetable crops.
The Helicoverpa armigera, Hubner (Lepidoptera: Noctuidae), is the most important economic pest. In the larval stage, the pest feeds on tomato fruits and seriously damages the fruits. Therefore, to reduce the overuse of chemical pesticides in tomato crops, microbial control is a key ingredient for sustainable crop production. Most toxic substances produced by microbial pathogens have been identified as peptides, but they are very different in terms of structure, toxicity and specificity. Therefore, the objective of the present investigation was to determine the bioefficacy of the entomopathogenic fungus, 12 Metarhizium anisopliae (Metchnikoff) Sorokin, isolates against 2nd instar larvae of the tomato fruit borer Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) under in vitro conditions. In vitro studies an bioefficacy of 12 Metarhizium anisopliae (Metschnikoff) (Sorokin) isolates (M1, M2, M3, M4, M5, M6, M7, M8, M9, M10, M11 and M12) at four different concentrations of 1x1010, 1x109, 1x108, 1x107 against 2nd instar Helicoverpa armigera (Hubner) larvae revealed that all the strains were pathogenic to the target pest at all spore concentrations. However, among them isolates M3 and M7, were most effective and recorded 95 and 85% larval mortality with LT50 value of 47.82 and 56.75 hours at the lowest spore concentration (1x1010 spores ml-1) and LC50 values of 5.06x105 and 2.29x107 spore ml−1, respectively. The lowest mortality (62.50%) was recorded in isolate M4 at 5 days after inoculation. These findings suggested that the adverse effect of most virulent M. anisopliae isolates M3 and M7 were compatible and most virulent to the target pest and that the simultaneous use may be helpful for managing H. armigera, 2nd instar larvae.
Cassava (Manihot esculenta Crantz.) is one of the major tuber crops in tropical and sub-tropical Africa, Asia and Latin America where it is the basic staple crop for 500 million people. The major constraint in cassava production in India and Africa is Cassava mosaic disease (CMD) caused by Cassava infecting geminiviruses (CIGs) belonging to the family of Geminiviridae and Genus Begomovirus which is transmitted by whitefly Bemisia tabaci Genn. A study was carried out to manage the Cassava Mosaic Disease with graded doses of potash nutrient. In this study, least disease incidence (34.33 per cent), least disease severity (1.21), least concentration of Cassava mosaic virus (0.450), maximum plant height of 117.56 cm and maximum cassava tuber yield of 43.00 t/ ha were recorded in the cassava plants applied with 45:90:320 kg of NPK / ha as basal dose and 45:320 kg of NK / ha during split application at 90 DAP as against control (45:90:0 kg of NPK / ha as basal dose and 45:0 kg of NK / ha during split application at 90 DAP) [95 per cent, 4.53,1.947, 58.94 and 20.35t/ha respectively).