ABSTRACT Background: Myzus pe.rsicae (green peach aphids) are crop pests; they are among the most destructive insect pests on cultivated plants in temperate regions. Many of them are green in color, but others may be white wooly or black (McGravin,1993).Their damage to plants has made farming a complicated venture across the whole world. From the zo9logical standpoint, they are a highly successful group of organisms (Piper, 2007). The study was conducted to evaluate .the chemical composition ...
ABSTRACT The study ascertained indigenous and emerging adaptive agricultural technologies to climate change in the Niger Delta region of Nigeria. Data were collected from 400 respondents through the use of semi structured interview schedule using a multi stage random sampling technique. The collected data were analyzed using percentages, mean score, and factor analysis. The findings revealed that majority (89.8%) of the respondents were aware of climate change though only 9.0% of them knew of...
ABSTRACT Continuous tillage of soils results in nutrient mining. It leaves the soils in very fragile conditions and therefore nutrient augmentation through the application of fertilizers has become imperative to maintain crop yields to feed the ever-growing population of Ghana. The use of organic fertilizers has its pros and cons. This study sought to determine the factors that influence the adoption of organic fertilizers, in vegetable production in Accra. Vegetable growing areas were purpo...
ABSTRACT This study examines the basic operation of an Organic Light Emitting Device (OLED) and Hybrid Organic-Inorganic Light Emitting Devices (HOILED) by looking at the individual characteristics of the each layer which makes up the entire device. Adhesion analysis and different types of layer characterization were carried out. First of all, the material of interest was deposited on AFM tips, clean 1 sq. inch glass substrates and ITO-coated glass with subsequent final fabrication of the de...
ABSTRACT The study was designed to compare productivity and efficiency of Low External Input Technology and High External Input Technology Farms in Imo State. Specifically, it aimed at comparing the socio- economic characteristics of the two groups of farmers as well as their productivities, ascertain the factors influencing aggregate and individual resource productivities, determine production efficiency and returns to scale in the two farm types. The study was conducted in Imo State, Niger...
ABSTRACT The properties of similar soils under two agroforestry systems, a sole Leucaena leucocephala woodlot and alley (one with cassava and the other maize in between Leucaena leucocephala hedgerows) were compared at two depths (0 - 15 cm and 15 30 cm) to assess the relative changes in soil properties due to the agroforestry practices. Similar soils under conventional tillage, adjacent natural fallow and forest reserve were also used in the study for comparison of data and evaluation of imp...
ABSTRACT The use of inorganic fertilizers in crop production in Sub Saharan Africa is very low due to exorbitant cost. Coincidentally nitrogen which is a limiting nutrient in sub Saharan African soils is locked up in organic waste with the waste breeding flies and having become an environmental nuisance in most towns in the sub region. Composting these organic wastes to be used as organic amendment has been proposed as one of the ways of improving on the low fertility status in soils and rid...
ABSTRACT This work was designed to determine the ways of enhancing food production through organic agriculture among farmers. Five research questions and five null hypotheses guided the study. A survey research design was adopted for the study.The study was carried out in northern zone of Cross River State, Nigeria. The population for the study was 230 comprising 205 registered crop farmers and 25 Agricultural Development Programme (ADP) extension agents from Ogoja Agricultural Zone respecti...
BACKGROUND The numerous limitations of inorganic solar cells has led to keen interest and exploitation of organic solar cells in recent times. They offer several advantages such as lightness, mechanical flexibility, low production cost, ease of processing and have a high potential for large area solar conversion1 . The properties, performance and lifespan of these solar cells depend on the properties of the active layer and interface between the components1 . Thus far research efforts have b...
Abstract: Efforts to recycle organic waste using black soldier fly (BSF) larvae into high-quality alternative proteiningredients in animal feeds and organic fertilizers have gained momentum worldwide. However, thereis limited information on waste manipulation to increase nutrient retention for enhanced larval perfor-mance and frass fertilizer quality. In the present study, brewer’s spent grain with a carbon to nitrogen (C/N) ratio of 11 (control) was amended with sawdust to obtain substrat...
Abstract: Efforts to recycle organic waste using black soldier fly (BSF) larvae into high-quality alternative proteinbingredients in animal feeds and organic fertilizers have gained momentum worldwide. However, there is limited information on waste manipulation to increase nutrient retention for enhanced larval perfor mance and frass fertilizer quality. In the present study, brewer’s spent grain with a carbon to nitrogen (C/ N) ratio of 11 (control) was amended with sawdust to obtain subst...
Deplorable soil fertility characterising resource-poor agrarian communities remain a major constraint for sustainable global food security. Re-mineralisation through appli- cation of rock dust encourages maintainable productivity of degraded soils. This study was planned to appraise the effect of rock dust on root-knot disease of Citrullus lanatus caused by Meloidogyne incognita (Mi). The experiment was laid out in Randomised Complete Block Design with three replications. Soil and root popula...
ABSTRACT This paper presents a review on the literature of tobacco farming on the observed research on the impact of tobacco farming on the livelihoods of smallholder farmers as well its impact on land. In this study I drew on the existing academic structure on tobacco farming in Zimbabwe. An examination of the determinants of farmer partaking in tobacco farming was carried out on 30 smallholder farmers. The case was Mount Bokoto ward24 in Murewa District. This study was therefore initiated ...
ABSTRACT The temporal distribution of four important cocoa mirid species (Distantiella theobroma Dist, Sahlbergella singularis Hagl, Helopeltis bergothii and Bryocoropsis laticollis) was studied in three differently managed cocoa farming systems from May 2013 to April 2014. In addition, the incidence of Bathycoelia thalassina, Characoma stictigrapta, Anomis leona, Earias biplaga, Eulophonotus myrmeleon, Oecophylla longinoda and Crematogaster africana, were recorded. The three systems were: Or...
The experiment was conducted at the University of Port Harcourt Teaching and Research farm, Port Harcourt, Rivers State, Nigeria from April to August, 2019 on the effects of organic and inorganic fertilizers on the growth and yield of cucumber (Cucumis sativus L). The research was done in a randomized complete block design with four treatments and replicated four times. The treatments include control (no application), NPK 15:15:15, spent mushroom ...