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Dissertations / Theses on the topic 'Maize and Cassava Crops'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Köcke, Sebastian. "The Perception of Cassava in Malawi : A Literature Study About a Root Crop’s Implication on Food Security in the Past and the Present." Thesis, Uppsala universitet, Institutionen för arkeologi och antik historia, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-401859.

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Climate change and weather phenomena like the El Niño-La Niña Southern Oscillation aremaking agriculture increasingly vulnerable in the Global South. In Malawi, where morethan 90% of the agriculture is rain-fed, food insecurity is becoming an annual problem. Inthe past, governmental policies have focused on improving maize production, which has ledinto mono-culture and a dependency on this crop resulting in acceleration of food insecurity.To fight hunger, non-governmental organisations and international donors are now focusingon promoting cassava due to its low-input requirements and drought r

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2

Baguma, Yona. "Regulation of starch synthesis in cassava /." Uppsala : Dept. of Plant Biology and Forest Genetics, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a478.pdf.

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3

Atadja, Franklin Komla. "Sustainability Challenges for Maize and Cassava Farmers in Amankwakrom Subdistrict, Ghana." Thesis, Walden University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10243184.

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<p>Agricultural system in Ghana underperformed because of limited financing, which constrained some small-scale maize and cassava farmers. The purpose of this case study design was to explore the methods that some small-scale maize and cassava farmers in Amankwakrom Subdistrict used in obtaining farm financing. Two themes from the literature review were a lack of collateral for small-scale farm financing and the small-scale farmers cooperative associations? role in farm financing. Regional-scale management sustainability index formed the conceptual framework for this study. Data collection inc

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4

Maende, Cleophas Makokha. "An application of a model of maize growth to maize production by smallholders in Kenya." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240744.

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5

Ubolsook, Aerwadee. "Sustainable Energy Crops: An Analysis of Ethanol Production from Cassava in Thailand." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/794.

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The first essay formulates a dynamic general equilibrium optimal control model of an energy crop as part of a country's planned resource use over a period of time. The model attempts to allocate consumption, production, and factors of production to achieve the country's sustainable development goal. A Cobb-Douglas specification is used for both utility and production functions in the model. We calibrate the model with Thailand data. The selected model is used to generate the stationary state solution and to simulate the optimal policy function and optimal time paths. Two methods are used: a l

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6

Oliveira, Paulo Alexandre da Silva. "Ecological risk assessment of pesticides in maize and tomato crops." Master's thesis, ISA/UL, 2017. http://hdl.handle.net/10400.5/17946.

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Mestrado em Engenharia Agronómica - Proteção das plantas - Instituto Superior de Agronomia<br>Foi realizado um estudo das comunidades de zooplâncton presentes na água de irrigação das culturas de milho e tomate em condições mediterrâneas portuguesas, a fim de vincular possíveis relações entre a exposição a pesticidas e as respostas biológicas. Este trabalho é uma contribuição para melhorar a relevância ecológica da Avaliação do Risco Ambiental de Pesticidas. Um total de 37 espécies de rotiferos e 2 famílias de cladóceros foram identificadas. Os principais componentes do zooplâncton em todos os

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7

Anil, Leena. "The growth and utilization of forage maize intercrops for livestock production." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266795.

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8

Chilimba, Allan Dennies Colex. "Potential for safe and efficient biofortification of maize crops with selenium in Malawi." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/12285/.

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Selenium (Se) is an essential element for humans, which is derived primarily from dietary sources. Habitual suboptimal dietary Se intake is associated with reduced Se status and adverse health outcomes including cardiovascular disorders, impaired immune functions and some cancers. The global extent of suboptimal dietary Se intake is difficult to estimate, but is likely to be widespread where food choices are narrow, for example, in subsistence agricultural contexts. This study aimed to: (1) characterise the likely contribution of maize grain to dietary Se intake in rural Malawi; (2) test the d

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9

Al-Traboulsi, Manal Hassen. "The responses of field-grown bean and maize crops to elevated soil CO2." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546479.

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10

Micheri, Pietro Hunger. "Dunite in annual crops : physiological changes, nutritional status in soybean and maize yield /." Botucatu, 2019. http://hdl.handle.net/11449/191103.

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Orientador: Carlos Alexandre Costa Crusciol<br>Banca: Patricia Preira Dias<br>Banca: Claudio Hideo Martins da Costa<br>Resumo: A crescente demanda por fertilizantes concomitante ao aumento dos preços desse insumo e a escassez de suas fontes levam a incessante busca por fontes alternativas de nutrientes para as plantas. Os afloramentos rochosos no Brasil coincidem com as localidades de áreas produtivas, tornando o acesso fácil dos produtores rurais à essas fontes, uma vez que o maior custo do pó de rocha está relacionado ao frete. Portanto, uma das alternativas estudadas é o uso de pó de dunito

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11

BEN, HASSINE MORTADHA. "GROWTH, NITROGEN UPTAKE AND MAIZE NITROGEN RECOVERY OF COVER CROPS IN CONSERVATION AGRICULTURE." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/702471.

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Planting winter cover crops has several benefits compared to keeping the soil bare. The choice of the cover crop species and sowing date is crucial to have the best cover crops establishment and weed suppression. The seeds germination of cover crops is affected by the sowing date with a preference of early sowing. However, the appropriate date of cover crops sowing is not known. Also, cover crops nitrogen dynamics is variable among species. In a conservation agriculture context, we conducted two field experiments in Northern Italy and one laboratory experiment under controlled conditions of te

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12

Lopez-Montes, Antonio JoseÌ. "Integrating farmers' knowledge and decision-making in the planning of participatory research of cassava/maize intercropping." Thesis, Bangor University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248899.

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13

Sánchez, Toledano Blanca Isabel. "Farmers' preferences and the factors affecting their decision to improve maize crops in Mexico." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/456244.

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Mexico is one of the countries with the highest corn production in the world (24.6 million tons) (FAOSTAT, 2016). However, in some regions, the yields are very low (2.0 Tn.ha-1) compared to the national average (9.39 Tn.ha-1). Among the different strategies to improve productivity, the adoption of improved maize seeds can play an important role. However, the adoption of this type of seed in Mexico is still limited. The development of a seed sector that meets the needs of farmers is an opportunity to increase improved seed usage, productivity, and, thus, profitability of Mexican farmers. The ma

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14

Schley, Laurent. "The badger Meles meles and the wild boar Sus scrofa : distribution and damage to agricultural crops in Luxembourg." Thesis, University of Sussex, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326935.

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15

Massignam, Angelo Mendes. "Quantifying nitrogen effects on crop growth processes in maize and sunflower /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17639.pdf.

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16

Kanton, Roger Adamu Lure. "Growth, yield components and resource use by morphologically contrasting maize-pea sole crops and intercrops." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408994.

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17

Mditshwa, Sithembele. "Estimating maize grain yield from crop growth stages using remote sensing and GIS in the Free State Province, South Africa." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/6016.

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Early yield prediction of a maize crop is important for planning and policy decisions. Many countries, including South Africa use the conventional techniques of data collection for maize crop monitoring and yield estimation which are based on ground-based visits and reports. These methods are subjective, very costly and time consuming. Empirical models have been developed using weather data. These are also associated with a number of problems due to the limited spatial distribution of weather stations. Efforts are being made to improve the accuracy and timeliness of yield prediction methods. W

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18

Penning, Bryan. "Slm1, a major quantitative trait locus for the suppression of les23, a disease lesion mimic in maize (Zea mays L.) /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3099623.

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19

Mahama, George Yakubu. "Impact of cover crops and nitrogen application on nitrous oxide fluxes and grain yield of sorghum and maize." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/18939.

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Doctor of Philosophy<br>Department of Agronomy<br>P. V. Vara Prasad<br>Leguminous cover crops systems have been envisaged as a critical component of sustainable agriculture due to their potential to increase soil productivity through cycling of carbon (C) and nitrogen (N) in agricultural systems. The objectives of this study were to evaluate the performance of leguminous summer cover crops; cowpea [Vigna unguiculata (L.) Walp.], pigeon pea [Cajanus cajan (L.) Millsp], sunn hemp (Crotalaria juncea L.) and double-cropped grain crops; grain sorghum [Sorghum bicolor (L.) Moench] and soybean [Glyci

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20

Brichler, Kirsten Nicole. "Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/98469.

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Mid-Atlantic crop producers are increasingly transitioning to soil conservation methods that include reducing or eliminating tillage and planting high residue cover crops. These practices are associated with an increase in moderate to severe damage to field crops by slugs. Conserving, and even enhancing, natural enemy populations is a desirable way to manage slug infestations because remedial control measures are limited. To better understand how cover crop usage and tillage practices affect slug and natural enemy populations, 43 Virginia fields with different combinations of tillage practices

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21

Njaimwe, Arnold Ngare. "Tillage and crop rotation impacts on soil, quality parameters and maize yield in Zanyokwe Irrigation Scheme, South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/460.

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Intensive tillage and monoculture cropping practices reduce soil C accumulation hence increasing soil vulnerability to chemical, physical and biological degradation. This study focussed on enhancing biomass production of wheat and oat winter cover crops as a means of increasing C sequestration in the low organic C soils of the central part of Eastern Cape Province. The specific objectives were (i) to evaluate the short-term effects of no till and cereal-fallow based crop rotations on; soil organic matter related parameters, pH and electrical conductivity, (ii) soil bulk density, water retentio

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22

Lee, Marina Stella Robin Jane. "Increasing the feasibility of General Surveillance of Genetically Modified maize." Doctoral thesis, Universitat de Lleida, 2020. http://hdl.handle.net/10803/670299.

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Els cultius Modificats Genèticament (MG) podrien tenir efectes negatius sobre el medi ambient, és per això que a la Unió Europea és obligatori el seguiment post-comercialització a llarg plaç, anomenat Seguiment General (SG), “General Surveillance-GS” en anglès. Malgrat aquesta obligatorietat, el SG que s’està duent a terme actualment no té la capacitat necessària per a detectar els efectes ambientals dels cultius MG. Per això, l’objectiu de la tesi és millorar la capacitat de detecció del SG a través de: a) la selecció d’artròpodes no-diana adients per al seguiment del panís MG, i b) identific

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23

Peethambaran, Bela. "Identification, characterization and anti-fungal activities of silk proteins in Aspergillus flavus resistant and susceptible maize inbreds." Diss., Mississippi State : Mississippi State University, 2006. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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24

Mejia, de Los Rios Juan Fernando <1978&gt. "Identification and genetic diversity in phytoplasmas associated with diseases of cassava and other agronomic relevant crops in south-east Asia and Latin America." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6637/1/Juan_Fernando_Mejia_Final.pdf.

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Identification and genetic diversity of phytoplasmas infecting tropical plant species, selected among those most agronomically relevant in South-east Asia and Latin America were studied. Correlation between evolutionary divergence of relevant phytoplasma strains and their geographic distribution by comparison on homologous genes of phytoplasma strains detected in the same or related plant species in other geographical areas worldwide was achieved. Molecular diversity was studied on genes coding ribosomal proteins, groEL, tuf and amp besides phytoplasma 16S rRNA. Selected samples infected by ph

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25

Mejia, de Los Rios Juan Fernando <1978&gt. "Identification and genetic diversity in phytoplasmas associated with diseases of cassava and other agronomic relevant crops in south-east Asia and Latin America." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6637/.

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Identification and genetic diversity of phytoplasmas infecting tropical plant species, selected among those most agronomically relevant in South-east Asia and Latin America were studied. Correlation between evolutionary divergence of relevant phytoplasma strains and their geographic distribution by comparison on homologous genes of phytoplasma strains detected in the same or related plant species in other geographical areas worldwide was achieved. Molecular diversity was studied on genes coding ribosomal proteins, groEL, tuf and amp besides phytoplasma 16S rRNA. Selected samples infected by ph

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26

NDAYISENGA, VALENCE. "APPROPRIATE FOOD PRODUCTION THROUGH INCREASING CROP YIELD AND INTRODUCING NEW CROPS IN THE DEMOCRATIC REPUBLIC OF THE CONGO." Doctoral thesis, Università Cattolica del Sacro Cuore, 2018. http://hdl.handle.net/10280/53793.

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La mancanza di una buona dieta ben bilanciata nutrizionalmente, porta al persistente sottosviluppo, in particolare per la capacità fisica e intellettuale delle persone e ha un impatto negativo sullo sviluppo del Paese. La presente tesi di dottorato mirava a valutare le strategie per produrre un cibo appropriato sufficiente, sicuro e sostenibile attraverso la sperimentazione di diverse tecniche di coltivazione e cultivar locali di manioca per identificare quali tecniche e cultivar sono più performanti per aumentare la resa. Dall’altra parte, al fine di contribuire alla diversificazione della pr

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27

NDAYISENGA, VALENCE. "APPROPRIATE FOOD PRODUCTION THROUGH INCREASING CROP YIELD AND INTRODUCING NEW CROPS IN THE DEMOCRATIC REPUBLIC OF THE CONGO." Doctoral thesis, Università Cattolica del Sacro Cuore, 2018. http://hdl.handle.net/10280/53793.

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La mancanza di una buona dieta ben bilanciata nutrizionalmente, porta al persistente sottosviluppo, in particolare per la capacità fisica e intellettuale delle persone e ha un impatto negativo sullo sviluppo del Paese. La presente tesi di dottorato mirava a valutare le strategie per produrre un cibo appropriato sufficiente, sicuro e sostenibile attraverso la sperimentazione di diverse tecniche di coltivazione e cultivar locali di manioca per identificare quali tecniche e cultivar sono più performanti per aumentare la resa. Dall’altra parte, al fine di contribuire alla diversificazione della pr

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28

Pfunde, Cleopatra Nyaradzo. "Parent characterization of quality protein maize (Zea mays L.) and combining ability for tolerance to drought stress." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1007536.

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Quality protein maize (QPM) has enhanced levels of two essential amino acids, lysine and tryptophan compared to normal maize. This makes QPM an important cereal crop in communities where maize is a staple crop. The main abiotic factor to QPM production is drought stress. Little information is available on the effect of drought stress on QPM. Therefore, the objectives of this study were to: (i) conduct diversity analysis of QPM inbred lines using morpho-agronomic and simple sequence repeat markers, (ii) screen available QPM inbred lines and F1 progeny for tolerance to seedling drought stress, (

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29

Kambanje, Ardinesh. "Productivity and profitability of different maize varieties and cropping systems used in the smallholder sector of the Eastern Cape Province of South Africa : implication on food security." Thesis, University of Fort Hare, 2018. http://hdl.handle.net/10353/6237.

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Low maize yields in the midst of abundant arable land, favourable climatic conditions, input and financial support programs, plagues smallholder maize farming in Eastern Cape Province. These scenarios have led the province to be a net importer of maize. In essence, low production may signify a mis-match between maize varieties being promoted amongst smallholder farmers and their farming system. Thus, the main objective of the study was to investigate the productivity and profitability of different maize varieties and cropping system under smallholder agriculture in selected villages of the Eas

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30

Fourie, Michelle Louise. "The potential of wheat, maize, lucerne, and soybean as plant borders to reduce aphid-transmitted virus incidence in seed potatoes." Pretoria : [s. n.], 2008. http://upetd.up.ac.za/thesis/available/etd-09042009-172734/.

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31

Ramoroka, Mokgadi Mizen. "Grain yield, gravimetric moisture content, dry matter accumulation and chlorophyll production in maize-legume intercrop under minimum and conventional tillage systems." Thesis, University of Limpopo (Turfloop Campus), 2008. http://hdl.handle.net/10386/639.

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Thesis (M.Sc. (Agriculture)) --University of Limpopo, 2008<br>Maize is a dominant crop in smallholder farming systems in the Limpopo province of South Africa, generally cultivated as intercrop with grain legumes. The major constraint in this cropping system is inadequate soil moisture during the growing season, which also limits nutrient availability to the component crops. The minimum tillage system has been reported to improve soil moisture availability on farmers’ fields but this has not yet been verified in an intercropping system in the province. The objective of this study was to quantif

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32

Nciizah, Adornis Dakarai. "Cattle manure, scalping and soil wetness effects on some physical properties of a hardsetting soil and associated early maize growth." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/349.

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Most soils in the Eastern Cape Province, South Africa are shallow and are low in organic matter. Therefore these soils are structurally fragile and highly susceptible to inherent degradative processes like hardsetting. The objective of this study was to determine the effect of cattle manure, scalping and soil wetness on aggregate stability, penetration resistance and early maize growth in hardsetting soils. Glasshouse and field studies were conducted to determine the effect of cattle manure on aggregate stability and penetration resistance of freshly exposed topsoils by scalping at 0, 10 and 2

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33

Reif, Jochen. "Assessing the genetic diversity in crops with molecular markers theory and experimental results with CIMMYT wheat and maize elite germplasm and genetic resources /." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11406735.

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34

Wilson, Claire Elizabeth. "Soil conditions and farming practices affecting the yields and sustainability of maize (Zea mays L.) crops in the Texcoco River watershed, central Mexico." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0015/MQ48589.pdf.

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35

Pharudi, Joseph Albert. "Effect of mycorrhizal inoculation and phosphorus levels on growth and yield of wheat and maize crops grown on a phosphorus deficient sandy soil." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5135.

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Vaicekauskas, Mantas. "Tarpinių pasėlių ir piktžolių konkurencijos tyrimai kukurūzų agrofitocenozėje." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110603_115143-56480.

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Lauko eksperimentas atliktas 2010 m. Lietuvos žemės ūkio universiteto bandymų stotyje. Eksperimento lauko dirvožemis yra sekliai glėjiško karbonatingo išplautžemio LVg-p-w-cc(sc)-Calc(ar)i- Epihypogleyic Luvisol dulkiškas priemolis. Eksperimento tikslas buvo nustatyti sąveiką tarp kukurūzų, tarpinių augalų ir piktžolių bei jos įtaką kukurūzų pasėlio produktyvumui. Į kukurūzų tarpueilius buvo įsėti vasarinių rapsų (Brassica napus L.), baltųjų garstyčių (Sinapis alba L.), vasarinių miežių (Hordeum vulgare L.), vienmečių svidrių (Lolium multiflorum Lam.), apyninių liucernų (Medicago lupulina L.),

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Gruber, Helga [Verfasser], Martin Akademischer Betreuer] Müller, Heinrich H. D. [Akademischer Betreuer] [Meyer, and Karl [Akademischer Betreuer] Kramer. "Surveillance of Cry1Ab protein and cry1Ab DNA in liquid manure, soil and agricultural crops under Bt-maize cropping and slurry management of cows fed Bt-maize (MON810) / Helga Gruber. Gutachter: Karl Kramer. Betreuer: Martin Müller ; Heinrich H. D. Meyer." München : Universitätsbibliothek der TU München, 2011. http://d-nb.info/1019590017/34.

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Arraes, Christiano Luna 1975. "Identificação de áreas, discriminação e estimativa de produção de culturas de verão por meio de produtos MODIS = Identification of areas, discrimination and estimated production of summer crops by MODIS products." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257507.

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Orientadores: Rubens Augusto Camargo Lamparelli, Jansle Vieira Rocha<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola<br>Made available in DSpace on 2018-08-25T04:02:33Z (GMT). No. of bitstreams: 1 Arraes_ChristianoLuna_D.pdf: 5573829 bytes, checksum: b89ba22cdee987fcbf6a3d0b5ec3d00a (MD5) Previous issue date: 2014<br>Resumo: Técnicas de sensoriamento remoto são úteis na determinação de áreas cultivadas, principalmente das commodities soja [Glycine max (L.) Merr.] e milho (Zea mays L.). Considerando que a Temperatura de Superfície Terrestre (TST) e o

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Farré, Martinez Gemma. "Towards vitamin biofortification in staple cereal crops in a socio-political and food security context." Doctoral thesis, Universitat de Lleida, 2012. http://hdl.handle.net/10803/84102.

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Transgenic approaches hold great promise in alleviating, to a major extend such micronutrient deficiencies as exemplified by numerous reports in the literature over the past decade. However, there is a limited understanding of the regulatory mechanisms that control the accumulation of specific vitamins in plants. For this reason, I analyzed a maize population expressing combinations of the carotenogenic genes Zmpsy1, PacrtI, Gllycb, Glbch and ParacrtW in an effort to unravel as yet unknown regulatory bottlenecks.I also investigated in more detail the corn bch family. My results suggest that di

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Shoko, Munashe. "Exploring phosphorus, mucuna (Mucuna pruriens)and nitrogen management options for sustainable maize production in a depleted kaolinitic sandy loam soil of Zimbabwe." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1364.

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Thesis (PhD(Agric) (Agronomy))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Continuous cropping without replenishing the nutrient component of soils will eventually lead to the depletion of soil nutrients. Small scale farmers in Zimbabwe often do not have the financial means to buy fertilizer and this problem is exacerbated by scarcity of commodities such as fertilizers. The use of herbaceous legumes such as mucuna (Mucuna pruriens) can assist to recapitalize soil fertility depletion and improve subsequent maize productivity in sandy loam soils in the small holder farming sector of

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Andrade, Júnior Oscar de. "Estudo da composição tecnológica e bromatológica de mandioca (Manihot esculenta Crantz) em dois espaçamentos." Universidade do Oeste Paulista, 2006. http://bdtd.unoeste.br:8080/tede/handle/tede/406.

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Made available in DSpace on 2016-01-26T18:56:25Z (GMT). No. of bitstreams: 1 DISSERTACAO_AGRONOMIA_Oscar_mar07_novo1.pdf: 270672 bytes, checksum: 7eba03f64317fd976224aae8616283fc (MD5) Previous issue date: 2006-01-31<br>The cassava (Manihot esculenta Crantz) is currently of great economic and social importance for Brazil. Important factors for evaluation of cassava cultivars under field conditions are: productivity (mg ha-1); Dry Matter Percentage (MS%). In order to carry out nutritional evaluation the following parameters must be considered: Fat - Ethereal Extract (EE%); Ash (%); Gross Dige

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Muzangwa, Lindah. "Cover crop biomass production and effects on weeds and soil fertility in a maize-based conservation agriculture system." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/484.

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Low cover crop biomass production is a major obstacle to the success of conservation agriculture currently promoted as panacea to the inherent problem of soil erosion and loss of soil productivity in the Eastern Cape (EC). Therefore, this study evaluated cover crop management strategies for optimizing biomass production for better soil cover, soil nitrogen (N) and phosphorus (P) fertility, weed control and maize yields. The strategies tested are cover crop bicultures, selection of an adapted lupin cultivar and seeding rate, and the feasibility of rain fed winter cover cropping. The cover crop

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Puta, Usanda. "Effects of genetically modified maize (MON810) and its residues on the functional diversity of microorganisms in two South African soils." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/419.

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Genetically modified (GM) crops are commercially cultivated worldwide but there are concerns on their possible negative impacts on soil biodiversity. A glasshouse study was conducted to determine effects of Bt maize residues on soil microbial diversity. Residues of Bt maize (PAN 6Q-308B) and non-Bt maize (PAN 6Q-121) were incorporated into the soil and corresponding maize seeds planted. The treatments were replicated three times. Fertilizer and water application were similar for both treatments. Rhizosphere and bulk soil was destructively sampled from each treatment and analyzed for microbial

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Musunda, Bothwell Zvidzai. "Evaluation of cover crop species for biomass production, weed suppression and maize yields under irrigation in the Eastern Cape Province, South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/347.

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Achieving high biomass yields of cover crops has been a challenge to the success of Conservation Agriculture (CA) practices in the Eastern Cape (EC). A study was conducted to evaluate strategies for optimizing cover crop biomass production. Trials were carried out to screen summer and winter cover crops, as well as evaluate intercropping patterns and planting dates for biomass, weed suppression and subsequent maize yield under irrigation. Four summer legume cover crop species were evaluated under a Randomised Complete Block Design (RCBD) design. The cover crops were fertilized with 13.34 kg ha

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Minh, Do Viet. "Effect of supplementation, breed, season and location on feed intake and performance of scavenging chickens in Vietnam /." Uppsala : Dept. of Animal Nutrition and Management, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005101.pdf.

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Silva, Aline Gomes de Moura e. [UNESP]. "Avaliação da qualidade de alimentos biofortificados produzidos em sistemas agroecológicos do trópico úmido." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/136245.

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Submitted by ALINE GOMES DE MOURA E SILVA null (aline.gms@gmail.com) on 2016-03-11T13:44:41Z No. of bitstreams: 1 TESE VERSÃO FINAL CORRIGIDA.pdf: 1163303 bytes, checksum: a526bf08995bae194a0b248c489531cc (MD5)<br>Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-03-14T18:09:14Z (GMT) No. of bitstreams: 1 silva_agm_dr_sjrp.pdf: 1163303 bytes, checksum: a526bf08995bae194a0b248c489531cc (MD5)<br>Made available in DSpace on 2016-03-14T18:09:14Z (GMT). No. of bitstreams: 1 silva_agm_dr_sjrp.pdf: 1163303 bytes, checksum: a526bf08995bae194a0

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Mukumbareza, Caroline. "Effects of oats and vetch cover crops on light organic matter fractions and activities of selected enzymes in an irrigated maize based conservation agriculture system on Alice Jozini Ecotope in the Eastern Cape, South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019815.

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Low soil fertility in the Eastern Cape Province (EC) is attributed to poor agricultural management, which reduces organic matter, among other factors. Conservation agriculture (CA), consisting of no-till, soil cover and rotations, is being promoted to improve soil quality and productivity. Soil biological parameters respond to the overall effects of management on the physical and chemical components of soil. This study was conducted to evaluate the effects of oat (Avena sativa) and grazing vetch (Vicia dasycarpa) cover crops on soil biological activity after five years under CA and evaluate li

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Ganyani, Lloyd Munashe. "Evaluating summer cover crop species and management strategies for rainfed maize based cropping systems in the central region of the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/373.

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The overall objective of the whole study was to assess whether conservation agriculture (CA) systems can work in the Eastern Cape Province (EC). The CA systems were engaged through cover cropping to address land degradation problems by emphasizing high biomass production in order to realize short term benefits such as moisture conservation, weed suppression and soil fertility benefits under rainfed conditions in the central region of the Eastern Cape province. Since rainfall is the most limiting factor to crop production in the EC, a within season rainfall distribution analysis was conducted t

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POTENZA, MARCOS R. "Avaliacao de produtos naturais irradiados para o controle de Sitophilus zeamais Mots. (Coleoptera: Curculionidae) e Blattella germanica (L.) (Dictyoptera: Blattellidae)." reponame:Repositório Institucional do IPEN, 2004. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11146.

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Ricks, Christian B. "The Prolamins of Pearl Millet." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1969.pdf.

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