Open Access Original Research Article

Effect of Different Doses of Nitrogen and Potassium on Growth and Yield of Potato (Solanum tuberosum L.) under New Alluvial Zone of West Bengal

Champak Kumar Kundu, Purnendu Sekhar Bera, Arundhati Giri, Shyamali Das, Madhab Kumar Datta, Pintoo Bandopadhyay

Current Journal of Applied Science and Technology, Page 1-5
DOI: 10.9734/cjast/2019/v36i230220

An experiment was conducted during the rabi season of 2012-13 and 2013-14 at Instructional Farm, Jaguli, Nadia, West Bengal to find out the different doses of nitrogen and potassium on growth and yield of potato. The experiment was designed in RBD with 10 treatments replicated thrice in potato cultivated variety Kufri Jyoti. Different doses of nitrogen and potassium were considered as treatments. For all the treatments P2O5 dose was 150 kg ha-1. The size of the experimental plots were 12 square meter and seed tubers were planted with 50 cm X 20 cm spacing. In this experiment, it was observed that the growth attributes like plant height, leaf area index, dry matter accumulation of tubers at 80 DAP, crop growth rate at 60-80 DAP were highest with the application of 250 kg ha-1 N, 200 kg K2O (T9) and statistically at par with 300 kg ha-1 N, 150 kg ha-1  K2O (T10). Again among the yield parameters, T9 recorded the highest tuber number per square meter and tuber yield which was closely followed by T10. Highest B:C ratio was also observed in T9.This result proves that T9 can be recommended to get better growth and economic yield of potato than T10  (farmer practice does) in the new alluvial soil of West Bengal.

Open Access Original Research Article

Effect of Seed Treatments and Containers on Chilli and Brinjal Seed Viability

Sunil Kumar, Suryapal Singh, S. S. Jakhar

Current Journal of Applied Science and Technology, Page 1-9
DOI: 10.9734/cjast/2019/v36i230221

An experiment was conducted to investigate the influence of fungicides and packaging materials on longevity of chilli (variety: RCH-1) and brinjal (variety: Hisar Shyamal) seeds. The seeds were treated with 15 fungicides and were kept in three containers viz. Metal box, Cloth bag and Plastic zipling bag up to 12 months under ambient conditions in seed pathology laboratory of Department of Seed Science & Technology, CCSHAU, Hisar, India. The samples were drawn at quarterly intervals for ascertaining the seed quality parameters. The seeds treated with flusilazole and carbendazim (2 g kg-1 seed) in case of chilli and brinjal and stored in metal-box were found better for maintenance of higher seed quality parameters [electrical conductivity and dehydrogenase activity] during the study period. The study suggested that use of appropriate packaging material and seed treatment could be useful to prolong the storage life of chilli and brinjal seeds.

Open Access Original Research Article

Study the Kitchen Waste Management Practices in Rural Household

Sangeeta Singh, Manashi Mohanty, Trupti Mohanty, B. P. Mohapatra

Current Journal of Applied Science and Technology, Page 1-7
DOI: 10.9734/cjast/2019/v36i230222

The problem of waste is a universal one as waste exists in every society. India is now the world’s 3rd largest garbage generator. Now a day waste is becoming more complex as a variety of materials are discarded as waste together. So the research was conducted to study the wastes management practices in the rural household of Koraput district, Odisha, India, with a sample of 110 female respondents. Investigations were carried out on SWM practices. The respondents were selected using multistage purposive random and proportionate sampling method. A pre-tested interview schedule cum observation sheet was used to collect the data. The findings of the study clearly revealed that biodegradable and non-biodegradable waste (3.63%) separation was not ready in practice. The main reason for not separating was lack of awareness (13.6%) followed by lack of discipline in home (4.54%) and laziness (3.63%). Improper waste disposal methods such as dumping in open (80.9%) and gutter (60.9%), burning (90.0%) were practised more readily in comparison to environmentally friendly methods like composting (4.5%) for kitchen waste.

Open Access Original Research Article

Improvement on Energy Consumption of Household Refrigerator

Michael T. Makinde, Taiwo O. Oni

Current Journal of Applied Science and Technology, Page 1-15
DOI: 10.9734/cjast/2019/v36i230225

In this work, a household refrigerator was fabricated and improvement on its energy consumption, by means of a composite insulation, was examined. The refrigerator was constructed with a cooler, which is made of 1.7 mm-thick plastic as its outer insulation. The outer, middle, and inner insulations of the cooler serve as the outer, middle, and inner walls, respectively, of the refrigerator. The inner insulation is 0.6mm-thick polystyrene and the middle insulation was originally 60mm-thick styro foam. After the initial experiment with the styro foam, it (the styro foam) was removed and replaced in succession with other insulations, namely rigid polyurethane foam, expanded polyurethane foam, fibre glass, and composite insulations, for which the experiments were successively repeated. The results indicated that the refrigerator with composite insulation consumed the least amount of energy of 0.195 kWh/day and it also had the lowest value of heat flux of 0.130 W/m2. The results obtained from the experiments on instantaneous heat flux and instantaneous temperature further revealed that of all the insulations considered in the present work, the refrigerator with composite insulation has the highest capacity to retain heat in the refrigerating chamber of the refrigerator. The inference is that the use of composite insulation can reduce energy consumption of a household refrigerator.

Open Access Original Research Article

Crop Growth and Productivity of Rainy Maize-garden Pea Copping Sequence as Influenced by Kappaphycus and Gracilaria Saps at Alluvial Soil of West Bengal, India

Sourav Garai, Koushik Brahmachari, Sukamal Sarkar, Rajib Kundu, Mriganka Pal, Biswajit Pramanick

Current Journal of Applied Science and Technology, Page 1-11
DOI: 10.9734/cjast/2019/v36i230227

Aim: Cereal-legume cropping system has been proved to be one of the best alternatives for a productive as well as profitable farming in West Bengal. Maize is an important cereal crop which is widely grown during rainy (kharif) season throughout the State. While garden pea, a short duration winter (rabi) season vegetable, can easily fit in any existing cereal-legume cropping system. The present nutrient management strategies solely relay on NPK based chemical fertilizer application which results in the gradual deterioration in soil physical and chemical properties and stagnant crop yield. To maximize production level by spraying extracts of natural products that contain stimulants, is a strategic move to overcome the ill effects of the use of excessive doses of inorganic fertilizer.

Methodology: The present field experiment was conducted in Nadia district, West Bengal during rainy and winter season of 2016-17 and 2017-18 to assess the impact of seaweed extracts on crop growth and productivity under maize-garden pea cropping sequence. There were four concentrations of Kappaphycus seaweed sap (K-sap) (5.0 and 10%); two concentrations of GA3 free K-sap (5.0 and 10%); two concentrations of Gracillaria seaweed sap (G-sap) (5.0 and 10%) and a control [Recommended dose (RD) of NPK only].

Results: Experimental results revealed that the foliar application of K-sap (10%) along with RD of NPK resulted in an impressive performance of both the crops in terms of growth (plant height, biomass, crop growth rate), yield attributes and yield, which was closely, followed G sap (10%). Throughout the growth period of garden pea, plants received recommended dose of fertilizer supplemented with K-sap at 10% concentration recorded significantly highest biomass production (56.94, 170.02 and 309.37 g m-2 respectively).

Conclusion: This may be concluded that the foliar application of 10% K-sap along with RD of NPK can be recommended for maize-garden pea cropping sequence.

Open Access Original Research Article

Parent-Adolescent Relationship in Context of Gender of Adolescents and Social Class of Families: A Case Study of GBPUAT, Uttarakhand

Arti Kumari, Ritu Singh, Manisha Mehra, Amit Kumar Mishra

Current Journal of Applied Science and Technology, Page 1-9
DOI: 10.9734/cjast/2019/v36i230226

The present study investigated gender differences in adolescents’ perceptions of parent-adolescent relationship among families (Class I, Class II, Class III, and Class IV) of G.B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand across their gender. Families falling under social class I of the university had parent(s) working as Professor and Associate Professor in the university; those falling under social class II had parent(s) working as Assistant Professor or equivalent and Doctor in the university; those falling under social class III  had parent(s) working as Accountant, Supervisor, Lab Technician and Clerk in the university and those falling under social class IV had parent(s) working as Attendant, Driver, Peon, CRC laborer, Gardner and Sweeper. In the present study, forty adolescents were randomly selected from each social class of which 63 were girls and 97 boys making a total of 160 respondents. Respondents from each socio- economic class were split across gender to analyze difference in perception of their relationship with parents. Parent-child Relationship Scale (PCRS) by Dr Nalini Rao (1989) was administered with the adolescents. The present findings revealed interesting gender variations in parent–adolescent relationship across four social classes of families under study. Boys and girls both, from all the social classes reported no gender difference in their parents’ practice of symbolic punishment. On the contrary, in comparison to boys, girls from all the social classes of families reported their parents, mother and father both, to be significantly more protecting. Second striking observation was that boys and girls from social class I, II and III reported no gender based parental (mother and father) differential attitude on symbolic reward, loving, object reward, rejecting, object punishment, demanding, indifferent and neglecting domains of parent-adolescent relationship. However, girls from social class IV perceived their parents to be significantly more rejecting, indifferent and neglecting and mothers in particular to be more demanding and practicing object punishment. Whereas, boys from social class IV reported parents to be significantly more symbolically rewarding, loving and object rewarding and fathers in particular to be more demanding and practicing object punishment.

Open Access Review Article

Comparative Analysis of BIM Adoption Efforts by Developed Countries as Precedent for New Adopter Countries

Mansur Hamma-adama, Tahar Kouider

Current Journal of Applied Science and Technology, Page 1-15
DOI: 10.9734/cjast/2019/v36i230224

Building Information Modelling (BIM) adoption is generally assessed through one of these two main approaches: Statistical evaluation of survey from stakeholders operating within a country or market and the use of macro BIM-adoption models and metrics. The recent paper “macro-BIM adoption: Comparative market analysis” sets a pace to continues development of comparative market studies. However, precedent is important for continues learning and adoption to contextualise this evolving field. This study aimed to set a unique precedent through comparative analysis of BIM adoption trends in the USA, UK and Australia to set a pace for beginners or early BIM adopting countries to learn from. This study is literature based analysed using content analysis. The study reveals the following:          

✓ For a vibrant and even BIM adoption, government is involved;

✓ Government mandate facilitates wide BIM adoption and integrates a country’s industry to the world;

✓ The mandate also facilitates BIM research and training that lead to rise in country’s income through providing trainings and work force export;

✓ Diffusion dynamic varies at different times, depending on country’s flexibility to adoption of innovation;

✓ The dynamic also changes as the industry’s culture/regulation changes.

Recommendations are made based on the study findings especially to the new adopter countries planning to develop a strategy for macro-BIM adoption.