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Now showing items 11-20 of 24
Technical and economic evaluation of the jack-driven briquetting machine
(Central Philippine University, 2014-06)
This study was conducted to evaluate the technical and economic performance of the designed briquetting machine that utilizes a hydraulic-type bottle-jack for better compression in producing briquettes. The machine can ...
Briquetting of biomass and urban wastes using a household briquette molder
(Central Philippine University, 2012-6)
This study was conducted to produce briquettes as alternative source of energy from abundant biomass and urban wastes using a locally fabricated household briquette molder which is composed of molders, handle and frame. ...
Efficacy of different green manures and commercial organic fertilizers on the growth and yield of potted lettuce and cabbage and their residues on lettuce and pechay
(Central Philippine University, 2014-06)
Two studies were conducted at CPU campus, Iloilo City from October 2009 to April 2010. The first one compared the effects of IMO-5, commercial compost, leaf green manures and inorganic fertilizer. Plants without fertilizer ...
Evaluation of the different rice hull gasifier stoves developed at CPU APPROTECH Center
(Central Philippine University, 2008-10)
Four gasifier stoves, all developed at the Appropriate Technology Center (APPROTECH Center) of CPU, were evaluated in this study in terms of fuel consumption rate, percentage char produced, fire zone rate, thermal efficiency, ...
Design and evaluation of a drum-type rice hull carbonizer and the manually-operated briquette molder for biocoal fuel production and for agricultural applications
(Central Philippine University, 2004-10)
A drum-type rice hull carbonizer and a manually-operated briquette molder were designed and evaluated at the Department of Agricultural Engineering, Central Philippine University (CPU), Iloilo City from June 1999 to April ...
The effect of varying levels of salt and sugar mixed with litter materials on the growth performance of Cobb-Vantress broilers and on the reduction of odor and fly infestation
(Central Philippine University, 2007-10)
This study was conducted to determine the effect of different levels of salt and sugar mixed with litter materials on the growth of broilers and on the reduction of odor and fly infestation. Treatments were laid out in a ...
A comparative study on the effectiveness of nature farming and conventional farming technologies on the growth and yield of Dapit-saka rice selection
(Central Philippine University, 2007-10)
The agronomic characteristics and yield of Dapit Saka rice selection grown using the conventional farming and nature farming methods were compared and the effect of the different nature farming concoctions against rice pests and natural enemies were evaluated from November 2002 to February 2003 in Bongco, Pototan, Iloilo. Results revealed that rice whorl maggots (Hydrellia philippina), white leafhoppers (Cofana spectra), green leafhoppers (Nephotettix virescens), brown planthopper (Nilaparvata lugens), rice stemborers (Scirpophaga innotata) and grasshoppers (Oxya hyla intricata) were found feeding on rice. Natural enemies observed included a mirid bug (Cyrtorhinus lividipennis), lady beetle (Micraspis crocea), damselfly (Agriocnemis spp.), ground beetle (Ophionea nigrofasciata), vespid wasp and spiders (Lynx spiders, Oxyopes spp.; dwarf spider, Atypena formosana; Orb spider, Argiope catenulata; and long-jawed spider, Tetragnatha maxillosa). It was noted that the use of nature farming technology and the absence of pesticides in the control resulted in more natural enemies. However, plants grown in conventional farming were significantly taller, had the most number of tillers, and heaviest panicles. These resulted in the highest grain yield of 3,466 kg/ha, a net income of P19,643.00 and an ROI of 130.80 % . These values exceeded those of plants in the nature farming technology by 1,641 kg/ha, P 5,612.65 and 25.80%, respectively....
A study on the invertebrate and vertebrate biodiversity of the Jalaur River system of Iloilo, Panay, Philippines
(Silliman University, 2010-01)
This study, conducted from July to November 2009, aimed to explore the diversity of large aquatic and terrestrial organisms found in microhabitats along the Jalaur River System on Panay Island, Philippines. We adopted a purposive sampling approach using several collection techniques appropriate to particular taxa or group of taxa. These include the netting method for birds and bats, cruising and transect methods for herpetofauna, gill-net fishing for aquatic vertebrates and quadrat method for macro- invertebrates. Data were analyzed for species richness (S) and relative abundance, and for fish, catch per unit effort (CPUE) and income per unit effort (IPUE). Three areas, representing the upper, middle, and lower portions of the river, served as the sampling sites. The results of the study show that there are at least 106 species of terrestrial vertebrates and about 71 species of aquatic vertebrates and macro-invertebrates in the area. These include 22 endemic species of terrestrial vertebrates, a new Philippine record of the goby Trypauchenopsis intermedia and an undescribed goby of the genus Rhinogobius. Of the 51 species of fish observed in the area, 36 species (70.59%) are known to inhabit marine and brackish water habitats, while 14 species (27.45%) inhabit freshwater. Only one catadromous species of fish, Anguilla marmorata, was observed in the area. The study also identified nine exotic species of fish and two species of freshwater mollusks are harvested in the area. The terrestrial vertebrate species diversity appears to be depauperate....
Socio-economic assessment of the households along the Jalaur River system, Province of Iloilo, Panay Island
(Silliman University, 2010-01)
The socio-economic aspect of the study was conducted to organizational and socio-political involvement, economic activities and use of the river system resources by the dependent population; perceived importance of the ...
Job change and self-control of waste pickers: Evidence from a field experiment in the Philippines
(Business Perspectives, 2018-06-15)
Environmental policies may have a negative side effect on employment, often in a specific industry in the short run. Workers in regulated industries can be affected by losses in job-specific human capital. The informal ...