Crop Science Research Papers/Topics

Pedological Characterization, Classification And Evaluation Of The Potential For Maize Production Of Solomon Mahlangu Campus Farm Morogoro, Tanzania

EXTENDED ABSTRACT  In Tanzania, limited attention has been channeled towards the assessment of the fertility status of the soils in areas perceived as suitable for agricultural activities, mainly crop production. In the absence of reliable soil fertility data and information, agricultural land use, and in particular crop production has resulted in very low yields of most of the crops, with subsequent land degradation. The Solomon Mahlangu Campus (SMC) farm – Sokoine University of Agricultu...

Effects of environment on growth and yield performance of ten common bean (phaseolus vulgaris l.) Genotypes

ABSTRACT The present study aimed at examining the effect of environment on growth and yield performance of some common bean (Phaseolus vulgaris L.) genotypes. The study was conducted during the season of 2007/2008 at SUA Mlali and Mgeta locations in Morogoro region. Ten bean genotypes obtained from SUA Bean Project were used. The beans were SUA90, ROJO, PESA, MSHINDI, ZAWADI, EG10R43, EG21R30, EG10R5, EG10R13 and one local genotype. SUA90, ROJO and one local genotype found in each location w...

Effects Of Phosphorus Levels On Yield And Yield Components Of Drought Resistant Bean Lines In Southern Highlands Of Tanzania

ABSTRACT The study on the effects of phosphorus (P) levels on yield components and yield of drought resistant common bean lines was carried out at Agricultural Research Institute- Uyole in the Southern Highlands of Tanzania, during the 2010/2011 cropping season. The institute is located at latitude 08o 56’ S, longitude 033o 06’ E and altitude of 1795 m above sea level. The overall objective of this study was to find out how to increase grain yield of drought resistant common bean lines t...

Rice Blast Disease Caused By Pyricularia Oryzae: Epidemiology, Characterization And Yield Loss In Major Rice Growing Areas Of Tanzania

ABSTRACT This study was conducted in Mbeya, Morogoro, Kilimanjaro, Shinyanga and Dar es Salaam regions. The overall objective of the study was to establish the magnitude of rice blast disease in Tanzania and its contribution to yield losses. Rice is an important staple food crop and is affected by blast disease with suspected high yield losses of up to 100%. Surveys were conducted in two years (2012 and 2014) to observe disease prevalence of rice blast disease in two different ecosystems in M...

Characterization And Incorporation Of Fusarium Wilt Disease Resistance In African And Asian Pigeonpeas [Cajanus Cajan (L.) Millsp.] Germplasms

ABSTRACT Fusarium wilt is a plant disease caused by Fusarium udum (Butler). It is a soil and seed borne fungus which causes significant yield losses in susceptible cultivars throughout the pigeonpea growing areas. Numerous control measures have been suggested to alleviate the problem but their success has still remained low due to prohibitive costs. Development of resistant pigeonpea varieties is sought as an alternative for control of the disease. However, the task of developing resistant pi...

Effect Of Season Of Planting On Growth, Flowering, Fruit Set And Seed Yield Of Bambara Groundnut

ABSTRACT Studies were conducted on nine (9) bambara groundnut (Voandzeia subterranea) accessions representative of cultivars cultivated in Ghana, Swaziland and Zimbabwe at the University Farms, Legon, on two planting dates.

The Performance Of Some Cultivars Of Common Wheat (Triticum Aestivum L.) At Kpon (Ghana)

ABSTRACT The performance of 16 cultivers of common wheat was studied at Kpong in 8 monthly plantings to

Effect Of Compost And Inorganic Nitrogen Fertilizer On Nutrient Uptake, Growth And Grain Yield Of Nerica Rice

Increasing inorganic fertilizer costs for food production and energy requirement for inorganic fertilizer production suggests the need to supplement the nutrient requirement of crops through organic amendments such as crop residues, manures and composts. Combined use of organic and inorganic fertilizers can improve rice productivity and sustain soil health and fertility. A pot experiment was conducted to compare the effects of N source as compost (organic), inorganic fertilizer (inorganic) or...

Effects Of Green Manure Cover Crops On Weed Population, Pearl Millet And Maize Productivity Under Conservation Agriculture In Liselo And Mashare Namibia.

ABSTRACT Smallholder farming communities of northern Namibia are generally cash-constrained and theyare situated in marginal areas where poor soil fertility and land degradation are predominant. They find it difficult to purchase mineral fertilizers and herbicides. There is therefore a need to identify cropping systems that are affordable and can improve their productivity. The integration of green manure cover crops (GMCCs) as rotational crops has been investigated to great lengths in Latin ...

Effects Of Selected Conventional And Conservation Agriculture On Soil Moisture Content, Infiltration And Maize And Pearl Millet Grain Yield In Liselo And Mashare: Namibia

Abstract This study focused on the results from the 2016/17 and 2017/18 cropping seasons from two trials, one in Liselo and the other in Mashare in the Kavango East and Zambezi regions of Namibia, respectively, on the effects of Conventional and Conservation Agriculture (CA) practices and principles on soil moisture content and infiltration. Conventional mouldboard ploughing (CTa), Sub-soiling with a Magoye ripper (SS-M) and Manual direct seeding with a Dibble stick (MDS-M) were the primary t...

Evaluation Of Propiconazole (Tilt) And Pruning In The Control of black Siqatoka Disease In/Qhana

ABSTRACT Pruning of diseased leaves and the use of Propiconazole (Tilt), a foliar fungicide with systemic properties, were two different recommendations made by the Ministry of Food and Agriculture to control black sigatoka, currently an important disease of plantain in the country. The two methods were evaluated from September 1995 to April 1997 at the University of Ghana Agriculture Research Station, Kade. Four treatments, namely, Tilt (0.125g ai/L), Pruning, Tilt (0.125g ai/L) + Pruning a...

Maize Production In The Coastal Savanna Zone Of Ghana

ABSTRACT MAIZE PRODUCTION IN THE COASTAL SAVANNA ZONE OF GHANA Peter Leyenaar, M.Sc. Supervisor: University of Guelph, 1976 Dr. R.B. Hunter Three field experiments were conducted on maize (Zea mays L.) at the Legon farm in the coastal savanna zone of Ghana during the major and minor seasons in 1975. Several factors affecting maize production were examined. Factors studied included planting date, cultivar, irrigation, side-dressing nitrogen, seed bed preparation and insect damage. During the ...

Management of the mediterranean fruit fly (ceratitis capitata wied.) Using pheromone traps and neem seed extract

ABSTRACT Laboratory and field experiments were conducted to evaluate the effectiveness of neem seed water extracts ( NSWE) and pheromone traps to control the Mediterranean fruit fly, C capitata infesting citrus at the University of Ghana Agricultural Research Station (ARS), Kade. Neem seed extract of concentration 15%, 20% , 25% and 30% wt/vol were prepared and left overnight after which the suspensions were seived and used for spraying. Ripened fruits of Citrus sinensis cultivar Late Valenc...

The effect of fertilizer formulation on yield components and yield of hybrid maize (Zea mays L.) varieties in the Guinea savannah zone of Ghana

ABSTRACT The research was conducted from late June to November, 2011 to evaluate the performance of five maize hybrids namely PAN 12 and PAN 53, Obatampa GH, Mamaba and ACR ’97 TZL Comp 1-w using five different fertilizer formulations: A- Actyva (275kg/ha), + Sulfan (250kg/ha), B- ERP (250kg/ha) + Actyva (275kg/ha), + Fertilizer Blend (250kg/ha), C- Actyva (275kg/ha), + Fertilizer Blend (250kg/ha), D- ERP (250kg/ha) +N: P: K. (275kg/ha), + Urea and E- control (N: P: K. (275kg/ha), + urea (...

Effectiveness Of Triple-Layer Hermetic Bags Against Aflatoxins In Stored Maize

ABSTRACT Aflatoxin contamination of agricultural commodities is gaining public prominence in Africa where it is pervasive due to favourable environmental conditions and high consumption of maize. Aflatoxins are toxic secondary fungal metabolites that contaminate dietary staples such as maize and groundnut resulting in adverse effect on food security, health and trade. This study evaluated the effectiveness of triple-layer hermetic bag to control aflatoxin in stored maize. A factorial experim...


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