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AMA, Agricultural Mechanization in Asia, Africa and Latin America
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. Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption Fa yi xue za zhi
18 Apr 2024 (Vol - 55 , Issue- 04 )
30 Apr 2024 (Vol - 55 , Issue 04 )
Aim and Scope :
AMA, Agricultural Mechanization in Asia, Africa and Latin America
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:
Agricultural and Biological Sciences
Electrical Engineering and Telecommunication
Electronic Engineering
Computer Science & Engineering
Civil and architectural engineering
Mechanical and Materials Engineering
Transportation Engineering
Industrial Engineering
Industrial and Commercial Design
Information Engineering
Chemical Engineering
Food Engineering
Effect of foliar application of zinc and boron on leaf nutrient status of lemon (Citrus limon Burm.) cv. Pant Lemon-1
The present study was carried out at Horticulture Research Centre, Patharchatta, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar to study the Effect of foliar application of zinc and boron on leaf nutrient status of lemon (Citrus limon Burm.) cv. Pant Lemon-1. The experiment was conducted in a Randomized Block Design with sixteen treatments and three replications during 2019-20. The soil of experimental site was sandy loam having pH 7.51 and EC 0.67 (dS m-1). Treatments, having different concentrations of zinc and boron (0.2%, 0.4% and 0.6% each) alone and in combination, were applied by the foliar spray method before flowering twicely in the month of April and May. Foliar application of Zn significantly increased the Zn concentration in leaves but it showed antagonism with the P and Mn concentrations. The treatment T10 (0.4% ZnSO4 + 0.2% H3BO3) showed the maximum increase in Zn concentration (33.30 ppm) while in the treatment T3 (0.6% ZnSO4) the concentration of P was decreased maximally by 0.02% and also a maximum decrease of 18.94 ppm in Mn concentration then their initial values. The maximum increase in boron concentration (16.91 ppm) was observed in the treatment T10 (0.4% zinc sulphate + 0.2% boric acid), but no regular pattern was observed with other nutrients like N, K, Fe, Ca and Mg. Therefore, it is suggested that for obtaining maximum yield and good quality fruits of lemon, foliar application of 0.4% zinc sulphate and 0.2% boric acid twice at one month interval in mid April and mid May before flowering was feasible.
VARIABILITY ASSESSMENT IN OKRA [ABELMOSCHUS ESCULENTUS (L.) MOENCH] GENOTYPES GROWN IN SUBTROPICAL AGRO-CLIMATE OF CENTRAL UTTAR PRADESH
Magnitude of genetic variability is important for any breeding programme for the selection of suitable genotypes and heritable characteristics of the plants. The present experiment was conducted during 2018 to identify the suitable selection criteria and identification of the genotype(s) suitable for the experimental area. Randomized block design with three replications was followed for evaluation of sixteen genotypes of okra. Study revealed that the maximum values were recorded for number of leaves (9.37), plant height (30.40cm), stem diameter (0.71cm), number of flowers (12.33), branches (7.33), number of fruits (6.74), TSS (7.30 OB), fruit length (11.43cm), fruit girth (1.26cm), fruit weight (16.22g), fruit yield (72.56g/plant, 2.96kg/plot, 108.41q/ha), acidity (0.73%), vitamin C (11.85mg/100g) and fruit moisture (84.29%) as desirable characters for crop evaluation in okra. Based on overall performance, 16 genotypes were grouped in to three clusters and cultivar Arka Anamika was marked as the best performer which could be beneficial for further crop improvement programme and most suited to Lucknow subtropical condition.
PERFORMANCE OF LOCAL CHAKHAO (BLACK RICE) GENOTYPES OF MANIPUR THROUGH STUDIES OF CORRELATION AND PATH ANALYSIS.
17 genotypes of Chakhao (black rice) varieties which are found locally in Manipur were evaluated under experimental rice field at Mongsangei, near SSB, Imphal west during two consecutive Kharif seasons of 2019 and 2020. Data were recorded on thirteen quantitative characters and the analysis of variance revealed highly significant for all the traits in both the year and on data pooled over years, indicating the presence of considerable amount of variability among the genotypes. High estimates of GCV and PCV was observed for number of effective tillers per plant, highlighting the presence of wider variability for this character as compared to other characters. High heritability along with high genetic advance were observed for grain yield per plant, number of spikelets per panicle and number of filled spikelets per panicle. Correlation studies showed that Grain yield per plant exhibited significant positive correlation with the characters tillers per plant and effective tillers per plant at both genotypic and phenotypic level. And at the phenotypic level for the characters plant height, number of spikelets per panicle and number of filled spikelets per panicle. For path analysis, the highest direct effect was exhibited by no. of effective tillers per plant followed by no. of days to 50% flowering, no. of filled spikelets per panicle, flag leaf length and plant height in both genotypic and phenotypic level. Highest indirect positive effect was revealed by no. of tillers per plant through no. of effective tillers per plant. Also panicle length, plant height, no. of spikelets per panicle, no. of filled spikelets per panicle and no. of tillers per plant showed high indirect effect through no. of effective tillers per plant in both genotypic and phenotypic level. The study concluded that, Chakhao Poireiton A can be used as a promising genotype since it exhibited high grain yield per plant, high no. of spikelets per panicle, and highest no. of effective tillers per plant.
Influence of Sowing Dates and Irrigations on Prevalence of Chickpea (Cicer Arietinum L.) Dry Root Rot Disease Under Field Conditions
Chickpea (Cicer arietinum L.) popularly known as Gram is an important pulse crop in India. Rhizoctonia bataticola (Taub.) is one of the most destructive fungal pathogen causing dry root rot disease in chickpea. The disease is most severe in the central and southern zones, where the crop is grown mostly under rainfed condition. The different dates of sowing at 15 days of intervals and were given alone and in combination also to see their effect on disease incidence. The susceptible variety “Uday” was used for this experiment. The crop which had been sown on October 15, 2017, the disease was first appeares on 90 DAS in *D1 I1 (15th Octoober + first irrigation at pre-flowering times ) followed by D1 I2 (15th Octoober + first irrigation at pre-flowering times and 2nd irrigation at pod formation stage) and D1 I3 (15th Octoober + first irrigation (40-45 DAS), 2nd irrigation pre –flowering times ) and 3rd irrigation at pod formation stage) which were (100 DAS) and (110 DAS), respectively. The crop which had been sown on October 15, 2017, the minimum disease incidence was observed (16.41%) in D1I3 followed by D1I2 and D1I1 which were (19.30%) and (21.80%), respectively. In the case of 01 November, 2017 sowing date the minimum disease incidence was observed (31.5%) in D2I3 followed by D2I2 and D2I1 which were (34.50%) and (35.5%), respectively. While 3rd date of sowing on 15 November, 2017, the minimum disease incidence was observed (36.43%) in D3I3 followed by D3I2 and D3I1 which were (37.73%) and (39.93%), respectively during 2017-2018 and similar trends were also observed in 2018-19. However, the minimum disease incidence and maximum seed germination, plant disease control and yield were found in the first date of sowing (October 15) with three irrigations in comparison to the second and third date of sowing with one or two irrigations during 2017-2018 and similar trends were also observed in 2018-19. The interaction effect was significantly different between various dates of sowing and irrigations.
Comparative economic analysis of Indigenous and clonal eucalyptus in Punjab
The present study was an attempt to make economic comparison between indigenous and clonal variety of eucalyptus. The study was conducted in the Hoshiarpur and Muktsar districts of Punjab state. The data pertained to the year 2015-16 and were collected from 70 farmers which were growing eucalyptus on their farm land as block plantation. The number of farmers growing indigenous and clonal variety were 32 and 38 respectively. There was not much difference found in establishment cost of both varieties irrespective of sapling cost. It was found that sapling cost was more in case of clonal eucalyptus. The total difference of Rs 2931 was observed in the establishment cost of both the varieties. In operational cost, the expenditures were almost same irrespective of cost of fertilizer and manure as clonal variety needs more irrigation and fertilizer and manure. Both the varieties have too much difference in terms of returns as clonal eucalyptus was highly profitable than indigenous eucalyptus. The net returns of indigenous eucalyptus were Rs 192329 in seventh year whereas Rs 355289 in case of clonal eucalyptus giving extra benefit of Rs 162960. The annuity value also increased with the increase in age of indigenous and clonal eucalyptus. It was clearly observed that clonal variety was more profitable than indigenous variety of eucalyptus.