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:
The study entitled “Studies on Effect of Integrated Nutrient Management on Yield, Quality, Disease resistance and Plant Nutrition of Pomegranate (Punica granatum L.) Orchard” was conducted during the year 2017-18 and 2018-19 at research farm, College of Agriculture, Golegaon, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani. Five years old, fifty six pomegranate trees having uniform growth and vigor were selected for experiment. The experiment was laid out in Randomized Block Design (RBD) with seven treatments replicated four times. The treatment consist of T1- Absolute Control, T2- Farmer’s Practices (½ RDF), T3- RDF (625:250:250 g N, P2O5, K2O tree-1), T4- INM (15 kg FYM + 8 ml Azotobactor, 8 ml PSB, 100 g Trichoderma + RDF), T5- RDF + Antibiotics (Streptocycline @ 250 ppm per tree), T6- T4 + Antibiotics and T7- T4 + Umber (Ficus racemosa) Rhizosphere Hybridised Soil (URHS @ 25 kg per tree). Result showed that yield attributes viz., number of flower, number of fruits, fruit set, fruit weight and yield of pomegranate were significantly increased, disease severity of leaf, fruit and twig reduced, quality parameters of pomegranate in respect of total soluble sugar, titrable acidity and colour of juice improved with application of RDF, nutrient solubilizers, organic manures and Umber (Ficus racemosa) Rhizosphere Hybridised Soil. The highest leaf N, P, K, Fe, Zn, Cu, Mn and B concentration were recorded with application 15 kg FYM tree-1, Azotobacter @ 8 ml per tree, PSB @ 8 ml per tree and Trichoderma @ 100 g per tree, 625:250:250 g N, P2O5 and K2O per tree and 25 kg URHS per tree (T7) at flowering and harvesting stage. Highest fruit nutrient content of pomegranate like N, P, K, Fe, Cu, Zn, Mn and B were also recorded with the same treatment after harvest of pomegranate.
Vegetables are an important part of a well-nutritious human diet, as well as a key component in achieving nutritional security by providing nutrients, vitamins, and minerals. The plants grow in the humid and sub-humid southern plains of Rajasthan that provides high recompense to growers. Production of bottle gourd is limited due to lack of high-yielding as well as better adaptive cultivars. In order to identify high yielding stable genotypes across the diverse environmental conditions, we have evaluated fifty-eight genotypes of bottle gourd in a Completely Randomized Block Design over three different environments in Rajasthan during summer and late Kharif 2021. According to the Eberhart and Russell model for stability analysis, P1 x P6, P1 x P2, P5 x P6 (bi>1) and P1 x P3, P2 x P5 and P3 x P9 (bi<1) were identified as the most promising genotypes for days to anthesis of first male flower, P5 x P6 and P3 x P8 (bi>1) and P1 x P2 and P4 x P5 (bi<1) for days to anthesis of first female flower whereas P5 x P7 and P7 x P8 (bi>1) and P1 x P3, P2 x P8 (bi<1) for number of branches per plant. P8 x P10, P1 x P2, P6 x P10, P5 x P10 (bi<1) and P4 x P8 and P6 x P7 (bi>1) can be used to increase the leaf area index, whereas, P1 x P6, P6 x P9, P6 x P10 (bi<1) and P2 x P8 and P4 x P9 (bi>1) for fruit diameter and P6 x P9 and P1 x P3(bi<1) and P2 x P8, P8 x P10 and P5 x P9 (bi>1) for fruit weight, and P2 x P6, P3 x P6, P2 x P7, P3 x P5 and one checks “Prince” (bi>1) and P6 x P9, P1 x P10, P3 x P4, P2 x P10 (bi<1) for T.S.S and P2 x P6 and P1 x P6 (bi>1) and P1 x P10, P7 x P8, P7 x P10 (bi<1) for ascorbic acid. Since these genotypes were indicated to be the most consistent across the environments for the traits mentioned, they can be successfully suggested to use in breeding programs. The study revealed that some reliable predictions regarding genotype and environment interaction, as well as its unpredictable components, played a relevant role in genotype stability. With this aim, the current study can be used to identify more productive genotypes in specific conditions, resulting in a large improvement in fruit productivity.
African agriculture suffers from under-mechanization which results in the absorption of a large part of the active population for yields that do not take off despite all the programs put in place in the different countries. The low level of use of inputs and poorly adapted equipment are cited among the main constraints to the development of the sector. The labor productivity gap between manual agriculture and the most motorized agriculture in the world is today of the order of 1 to 2000 in gross productivity and 1 to 500 more in net productivity. Senegal has a long history of agricultural mechanization, both in terms of motorized equipment for the production and processing of products and in terms of animal traction. However, many attempts to introduce motorized agriculture have been made in sub-Saharan Africa. Many governmental and non-governmental projects have tried for many years and without much success to adapt motorized equipment on African family farms, while a number of countries have made agricultural mechanization a preferred means of transforming agrarian structures, which has also failed. In recent years, the Senegalese government has implemented a policy of supporting producers in the acquisition of agricultural equipment. Elements of this policy include tax exemption for agricultural equipment, and 40 percent state subsidies for the purchase of agricultural equipment. Analysis of the trajectory of farms in Senegal shows that animal traction is the most widely adopted technology. Motorized agricultural equipment is often acquired as part of support for the agricultural policies in place and is intended for large producers. Motorization mainly concerns rice cultivation in the irrigated areas of the Senegal River valley and the Anambé basin, followed by high value-added crops in the Niayes area.
A field experiment was conducted during the rabi season of 2020-21 at Crop Research Centre Meerut, India. The experimental site was sandy clay loam in texture having soil pH 7.9, organic carbon 0.40%, and 216.0, 11.5, 250.0 kg/ha and 0.80 mg/kg available N, P2O5, K2O and Zn respectively. Novel nutrient sources with 12 treatments consisting of control, basal application of recommended 100% NPK (150:60:40) kg/ha, 75% NPK (112.5:45:30) kg/ha + NPK spray 18:18:18 (15 g/l) + NPK Consortia seed treatment (250 ml in 3 litre water 60/kg seed) + Bio-stimulant (625 ml/ha) + Nano N (4 ml/l) + Nano Zn (10 ml/l) in various combinations were attempted on wheat variety HD 2967 in RBD design with three replications. Treatment having 75% NPK + NPK Consortia + NPK spray + Bio-stimulant spray + Nano Zn spray was on par with 100% NPK with biostimulant/nano Zn and significant over RDF in yield and yield attribute. Respective net return 99.45 × 103 ₹ ha-1 Was also better with B:C ratio of 3.0 over RDF.
Ten parents along with forty-five hybrids (developed by half-diallel) and one check (Lok 1) were evaluated in RBD with three replications in three environments [early sowing (E1), normal sowing (E2) and late sowing (E3)] during rabi 2016-17. Simultaneous consideration of the mean, bi and S2di of the individual genotypes for grain yield per plant showed that among the parents, UP 2672 (22.18), DBW 110 (20.51), GW 451 (20.06) and Raj 4238 (19.29) recorded average grain yield per plant and average stability as the regression was not differing from unity and S2di also non-significant. Average yielding parent GW 451 (20.06) was also average responsive and stable for biological yield per plant and harvest index. Among five best crosses, cross GW 273 × Raj 4238 was average stable over environments. Similarly, three crosses viz., GW 463 × DBW 110, HD 2932 × Raj 4238 and GW 451 × HD 2932 favored for favourable environments.