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.
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: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
The continuous use of inadequate and imbalanced nutrients in the exhaustive rice-wheat systemlead to deterioration of soil fertility and soil health in Indo-Gangetic alluvial belt. In such systems, uses of concentrate organic nutrient sources as a renewable source of plant nutrients is assuming importance as organic sources integrated with inorganic fertilizersimprovescrop productivity while sustaining soil health. Therefore a field experiment was plannedto assess the cow urine effects (U2 - 12000 l ha-1 equally distributed at sowing, CRI, and spike emergence, U1 - 8000 l ha-1 equally applied at sowing and CRI and U0 - 0 l ha-1) at varying fertility (100% and 75% RDF) and zinc levels (0, 5 and 10 kg Zn ha-1) on wheat under irrigated conditionsof Varanasi in split plot design. After two years,maximum shoot dry weight m-1 row length, grain yield, straw yield, protein content, protein yield, nutrient content and uptake by grain and straw were statistically obtained with 100% RDF (F1) over 75% RDF (F2). Plants grown under 10 kg zinc ha-1resulted significantly higher values of above parameters though remained comparable to 5 kg Zn ha-1. A significant increase was obtained with respect to NPK & Zn uptake by grain and straw and protein, grain and straw yieldwith each increment of cow urine level, recording maximum at 12000 l cow urine ha-1.Within the levels of cow urine applied, 11.14% and 10.20% increase in 2016-17 and 10.31% and 9.20% increase in 2017-18 wererecorded with 12000 and 8000 l cow urine ha-1over control, respectively.
An experiment was conducted in split split plot design with four replication at Integrated Farming System field, under College of Agriculture, Ummedganj, Agriculture University, Kota (Rajasthan) in the summer cropping season of 2019 and 2020. There are thirty treatment combination with five intercropping systems [sole cowpea, sole baby corn, cowpea + baby corn (2:1), cowpea + baby corn (3:1) and cowpea+ baby corn (4:1)] in main plot, three fertility levels (100, 125 and 150% RDF) in sub plot and two stress mitigating chemicals (0.5% CaCl2 and 1% KNO3 at flowering and pod development stage of cowpea) in sub sub plot and replicated four time. Results showed that 2:1 row ratio of cowpea and baby corn significantly increased almost all the growth parameters of cowpea viz. plant height, dry matter accumulation, branches per plant, number and weight of nodules as well as baby corn (plant height and dry matter accumulation) across all the growth stages. Both the component crops, gave significantly higher seed/cob, straw/fodder yield in sole cropping compared to their intercropping row ratios. Cowpea and baby corn (2:1) recorded significantly higher protein content in seed/cob of cowpea/baby corn. In the sub plots growth, yields (seed/cob and straw/green fodder) and quality of cowpea and baby corn were higher with the fertility level of 150% over lower levels (100% & 125% RDF). Moreover, foliar application of 0.5% CaCl2 gave the highest significant values of all the aforementioned growth parameters of cowpea and also of baby corn at all the growth stages (except at 25 DAS). Yields of both crop were also significantly higher with the application of 0.5% CaCl2 at flowering and pod development stage of cowpea over 1% KNO3, however protein content of cowpea as well as baby corn was not significantly affected by the foliar spray of chemicals.
The effects of growing seasons on the enzymatic activities (alpha amylase and dehydrogenase) of seeds of five sesamum genotypes viz., Uma, Amrit, Nirmal, CUMS-17 and Prachi in six developmental stages (7, 14, 21, 28, 35 and 42 days after anthesis) were investigated. The experiment was conducted in the Department of Seed Science and Technology, Odisha University of Agriculture and Technology (OUAT), Bhubaneswar during 2014-16. The alpha amylase and dehydrogenase activities in the developing seeds increased consistently till 35 days after anthesis (DAA) after which there was slight decrease in values of these traits up to maturity (42 DAA). Among the varieties, Prachi registered the highest alpha amylase activity (140.25 µg/g) followed by CUMS-17 (137.00 µg/g) at physiological maturity stage (35 DAA) and Uma had the lowest value (124.25 µg/g). Among the growing seasons, the kharif seeds had the highest alpha amylase activity (140.75 µg/g) followed by summer (131.50 µg/g) and rabi (122.65 µg/g). Among the sesame varieties studied, the dehydrogenase activity was found to be highest in Prachi and CUMS-17 (0.36 mg/g and 0.33 mg/g) and lowest in Uma (0.28 mg/g). The harvested kharif seeds registered the highest dehydrogenase activity (0.34 mg/g) followed by summer (0.30 mg/g) and rabi (0.29 mg/g) seasons.
A field experiment was conducted during the spring–rainy (kharif) season of 2019 on a pearlmillet–mungbean cropping system at the Department of Agronomy, Anand Agricultural University's college agronomy farm Gujarat, India. The objectives of this study were to investigate the direct effect of organic sources, inorganic fertilizers and liquid biofertilizer to applied pearlmillet on soil physical, chemical and biological properties after harvest of pearlmillet crop in a pearlmillet–mungbean cropping system. The experiment with ten treatments was laid out in a completely randomized block design with four replications. The direct effects of different nutrient management practices applied to pearlmillet were significant (P<0.05) on the water holding capacity of the soil, electrical conductivity, organic carbon, cation exchange capacity, available NPK & sulphur. The direct effect of nutrient management practices on soil pH and bulk density found non-significant. The soil microbiological properties were significantly improved, including the population of total bacterial, Azotobacter, phosphate solubilizing bacteria (PSB), microbial biomass carbon and dehydrogenase activity of soil after harvest pearlmillet crop. Application of 100 % RDF + 15 t FYM ha-1 + Bio NP consortia (T5) significantly improved the soil available nutrients and cation exchange capacity.
Soil phosphorus forms have been practically defined as chemically fractionated pools. A knowledge of the phosphorus fraction in soil and factor affecting them will lead to better soil management. The aim of study is to investigate study the effect of phospho enriched compost and fertility levels on different fraction of phosphorus. The experiment was undertaken during Kharif 2018 and 2019 at Instructional Farm (Agronomy), Rajasthan College of Agriculture, Udaipur (Rajasthan). The treatments comprised of four levels of phospho enriched compost (PEC) i.e. control, PEC @ 2.0, 4.0 and 6.0 t ha-1 and four levels of fertility i.e. control, 50% RDF + foliar spray of Zn 0.5%, 75% RDF + foliar spray of Zn 0.5% and 100% RDF + foliar spray of Zn 0.5% kg ha-1. The extractable-P, total-P, organic-P, saloid bound-P, aluminium bound-P, iron bound-P, calcium bound-P, reductant soluble-P, iron + aluminium bound-P, carbonate bound-P, occluded-P in soil at harvest stage of crop ware increased significantly with increasing levels of phospho enriched compost during both the years and in pooled analysis. The chemical pools of phosphorus viz. extractable-P, total-P, organic-P, saloid bound-P, aluminium bound-P, iron bound-P, calcium bound-P, reductant soluble-P, iron + aluminium bound-P, carbonate bound-P, occluded-P in soil increased significantly with application of fertility levels with foliar spray of zinc.