Authors:Kasim Roba Abstract: Croton macrostachyus Hochst.ex Delile is a species of the genus Croton, Euphorbiaceae family, commonly known as the spurge family and it is known as major honeybee forages having more nectar and the study was carried out to evaluate effects of its layers, and age and temperature on its nectar volume and concentration. Nectar is a floral resource commonly sought after by plant visitors, because of its nutritional importance. Effects of temperature, layers of trees and plants age on nectar volume and concentration of youngest, medium and oldest age of croton was measured. Results indicated that nectar concentrations and volume of youngest age were no more affected by temperature like that of medium and oldest age. Temperature and age has significant effect on volume (p = 0.0001) and their interactions is also significant (p = 0.012).Temperature has significant effects on nectar concentration (p = 0.000). Oldest plants had highest concentration of 10.1 w/w morning and afternoon 36.5 w/w at 4:00 PM for whereas medium plants had nectar concentration of 5.7 w/w morning and afternoon 16.7 w/w and the smallest had nectar concentration of 2.7 w/w morning and afternoon 9.1 w/w. I conclude that future temperature rise could have negative effect on nectar secreation for honey productions since for croton also no nectar secreation was observed after peak temperature of its nectar secreation that was 30°C. Studying factors affecting nectar volume and concentrations is important to increase productions and the productivity of honey to generate income and for medicinal value of honey. Keywords: Age of trees,Croton macrostachyus, nectar concentration, nectar volume, temperature, trees layers DOI : 10.7176/JNSR/11-18-01 Publication date:September 30th 2020 Issue No:Vol. 11
Authors:Yohannes Kebede Abstract: Brewer’s spent grains are byproducts produced in large quantities from the brewing industry. Characterizing agro-industrial wastes is an important step to add value and increase its viability for various applications. In this experiment, the physico-chemical characteristics of Brewers Spent Grain (Total solids, volatile solids, organic carbon, total nitrogen) were analyzed. (APHA, 1999) standard was used to analyze the characteristics. The results revealed that, BSG has a total and volatile solid content of 94.95 and 90.04 %, respectively. The carbon to nitrogen ratio of brewer’s spent grain was 13.91. After pre-treatment the moisture content and ash content were found to be 5.05% and 10.96% respectively. It was shown that BSG exhibits higher variations according to barley variety, planting time and mashing process in the factories. Keyword: BSG, total solid, volatile solid, Carbon to nitrogen ratio DOI : 10.7176/JNSR/11-18-02 Publication date:September 30th 2020 Issue No:Vol. 11
Authors:Okwudibe H. A., Suleiman A. I., Elemure Victoria Akewo Abstract: Materials handling is a very important aspect of post-harvest operation, the socio-economic value and shelf life of crops especially perishables depends largely on how they are conveyed from one place to another, a conveyor is a mechanical handling equipment that moves materials from one location to another. Many kinds of conveying systems are available, and are used according to the various needs of different industries. The aim of this paper is to construct a belt conveyor machine for Auchi Polytechnic demonstration farm. This paper contains the design calculations and considerations of belt conveyor system, in terms of size, length, capacity and speed, roller diameter, power and tension, idler spacing, type of drive unit, diameter, location and arrangement of pulley, angle and axis of rotation, control mode, intended application. The completed work will help to reduce human effort and at the same time increase the productivity and accuracy levels that cannot be achieved with manual operations. Keywords: Materials handling, Post-harvest operations, Belt Conveyor, Frame, Material handling equipment, DOI : 10.7176/JNSR/11-18-03 Publication date:September 30th 2020 Issue No:Vol. 11
Authors:Anthony Ewusi, Jamel Seidu, Sulemana Amadu Abstract: The Balatindi Mineral Prospect, Guinea, is a multi-element mineral prospect that hosts commercial quantities of gold, uranium and copper. A major challenge for exploration activities within the area is the turnaround time for assay results due to the unavailability of a nearby assay laboratory and the high cost of analysis. This therefore delays assay results which are needed for quick decisions during field work. There is therefore the need to find a faster and cheaper way of delineating mineral anomalies. Magnetic and radiometric geophysical techniques were considered because of the rapid and cost-effective ways in which data is acquired and they yield substantial quantity of accurate data enhancing interpretation and deduction. Down hole drill data for 37 HQ size diamond drilled holes of about 9200 m were used for the analysis. Magnetic susceptibility data were secured from 24 drill hole data for the Central Polymetallic Prospect area, whiles radiometric data were taken for the 23 drill holes in the other areas. The data were correlated with the laboratory assay results for gold and uranium respectively. Strip logs and statistical analysis were used to interpret magnetic susceptibility readings against gold assay values, and radiometric readings against uranium assay values. Maximum and minimum values of -2.46 × 10-3 and 546.5 × 10-3 magnetic susceptibility were respectively recorded whiles 45 cps and 7250 cps were the maximum and minimum radiometric readings obtained. Magnetic susceptibility values did not show any preferential correlation with gold mineralisation. Radiometric cps values showed a very strong direct correlation with uranium mineralisation. This is because the radiometric cps is a function of the radiometric mineral present and therefore, radiometric survey can be used as a faster and cost-effective way of delineating uranium anomaly within the Balatindi prospect. Keywords: Balatindi, Magnetic susceptibility, Radiometric count, Multi-element mineral deposit. DOI : 10.7176/JNSR/11-18-04 Publication date:September 30th 2020 Issue No:Vol. 11
Authors:Ogunnubi C. S., Suleiman A. I., Otoaye A. A., Ugbodaga Mercy E. Abstract: Auchi Polytechnic and the Communities surrounding her, have being experiencing significant issues with water scarcity and quality for many decades. Again, with the moribund state of the Water Corporation Service here in Auchi, there is an unprecedented demand for water concerns about water use by agriculture. Hence, a lot of farming activities takes place only during the raining season. This study aimed to design a solar powered borehole for drip irrigation system. Drip lines were laid, 2 mm holes was made at distance of 30 cm on the 6 m PVC pipes. Components of drip irrigation system consist essentially of main line, submains, laterals and emitters. The main line delivers water to the submains and the submains to the laterals. The set up was tested to determine the uniformity of water emission from the drip emitters into the field, maize, pepper, tomatos was used as the test crops and there was uniform growth observed across the entire field. The low cost drip system developed in this study showed a high level of efficiency and uniformity of water emission across the entire study area. Keywords: Low Cost Solar Powered, Irrigation System, Farm DOI : 10.7176/JNSR/11-18-05 Publication date:September 30th 2020 Issue No:Vol. 11
Authors:Taiwo Abideen Lasisi, Olukunmi Olatunji Akanni Abstract: Water is a fundamental basic need for sustaining human and economic activities. Availability of water in the desired quantity and quality, at the right time and place has been the key .....(More content can be found in the full paper)Keywords: Physico-chemical, Public health, Mortality, Water quality, Dam, Snail DOI : 10.7176/JNSR/11-18-06 Publication date:September 30th 2020 Issue No:Vol. 11
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