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Tesis sobre el tema "Sustainable crop production"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Ellis, Ciaran R. "Valuing wild pollinators for sustainable crop production." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/22327.

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This thesis looks at the role of wild pollinators in providing services to crops. Two data chapters (2 and 3) are accompanied by a modelling chapter (4) which build on the findings of the field studies. The thesis ends with an overview of the trends in pollinator populations and how these relate to the needs of farmers in the UK (chap-ter 5). It is often assumed that commercial pollinators are appropriate substitutes of wild pollinators on farms; however this view neglects the differing roles that particular pollinator taxa might play in providing pollination services. For example, crops with

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2

Touliatos, Dionysios. "Exploiting vertical growing strategies for sustainable crop production." Thesis, Lancaster University, 2017. http://eprints.lancs.ac.uk/89593/.

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3

GANIMEDE, CRISTINA. "REDESIGNING AGNOECOSYSTEMS FOR A SUSTAINABLE CROP PRODUCTION INTENSIFICATION." Doctoral thesis, Università Cattolica del Sacro Cuore, 2017. http://hdl.handle.net/10280/17727.

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L’intensificazione sostenibile delle pratiche agricole rappresenta un paradigma per il passaggio da sistemi agricoli tradizionali all’applicazione di tecnologie e tecniche moderne per la produzione agricola. A livello globale si è diffuso l’interesse verso il modello di Agricoltura Sostenibile (AS), in vista di alcuni problemi che possono minacciare la sicurezza alimentare mondiale: crescita della popolazione mondiale, cambiamenti nella domanda delle produzioni agricole, percentuale elevata di persone sottonutrite, cambiamenti climatici, diminuzione delle risorse naturali. Il progetto “Produzi

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4

GANIMEDE, CRISTINA. "REDESIGNING AGNOECOSYSTEMS FOR A SUSTAINABLE CROP PRODUCTION INTENSIFICATION." Doctoral thesis, Università Cattolica del Sacro Cuore, 2017. http://hdl.handle.net/10280/17727.

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L’intensificazione sostenibile delle pratiche agricole rappresenta un paradigma per il passaggio da sistemi agricoli tradizionali all’applicazione di tecnologie e tecniche moderne per la produzione agricola. A livello globale si è diffuso l’interesse verso il modello di Agricoltura Sostenibile (AS), in vista di alcuni problemi che possono minacciare la sicurezza alimentare mondiale: crescita della popolazione mondiale, cambiamenti nella domanda delle produzioni agricole, percentuale elevata di persone sottonutrite, cambiamenti climatici, diminuzione delle risorse naturali. Il progetto “Produzi

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5

Kibe, Alison G. "Farm Scale Feasibility of Exploiting UV Radiation for Sustainable Crop Production." Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/scripps_theses/605.

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The Food and Agriculture Organization of the United Nations predicts that food supplies will need to increase by 70 percent by 2050. To cope with this, farmers and technologies must adapt to produce higher yields and do so in harsher conditions associated with climate change. The shifting view of ultraviolet radiation may be one of a system of management approaches that agriculture could sustainably adopt to improve crop production. While this technology sounds promising, whether or not farmers choose to adopt the technology, on what scale, or when, is often ambiguous. These decisions are depe

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6

Avila-Segura, Laura M. "Potential benefits of cover crop based systems for sustainable production of vegetables." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015763.

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7

September, Lwandlekazi Christina. "Crop production and sustainable livehoods for rural women of Sutterheim in Eastern Cape." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/20488.

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The study focuses on investigating the impact of crop production to sustainable livelihood strategies among rural women. The main objective of the study are as follows: to investigate the extent to which Silwindlala crop production cooperative has improved the lives of Jerseyville rural women, to investigate the new skills that Jerseyville rural women have obtained from Silwindlala crop production cooperative, to explore on challenges that would contribute to failure of crop production cooperative and to come up with the recommendations that would contribute to policy formulation and skills on

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8

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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9

Bojang, Musa. "The use of cowpea (Vigna unguiculata) cover crop for sustainable maize and millet production in the Gambia." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401426.

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10

Turbett, Yzanne J. "A potential new method of steam treatment for the control of soil-borne diseases, insects and weeds in sustainable crop production." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408782.

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A series of experiments were conducted to determine the potential of a new method of steam treatment for the control of soil-borne diseases, insects and weeds in sustainable crop production. The new method involved rapidly heating a bed of prepared soil on a porous base by passing an upward flow of steam through it. The aim was to determine whether the new method would be suitable for use in a field machine, making large-scale field steaming practically and economically viable. In the first experiments, the feasibility of the new method was tested. It was shown that it was an effective and

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11

Öckerman, Frode. "Climate impact assessment of coupling biogas production to agricultural and energy systems: crop variety of Solaris energy tobacco in Marble Hall, South Africa." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-295890.

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In the context of global energy shortage and climate change, developing local biogas plants coupled with agricultural systems can become an important strategy for cleaner rural energy and sustainable agriculture. In this research, a Life Cycle Assessment (LCA) method was applied to compare the climate impact of two essentially different systems: 1) Scenario I: an agricultural system based on the cultivation of 11 hectares of energy tobacco primarily for seed production; 2) Scenario II: a hypothetical Scenario Investigating the climate impact concerned with a crop variety – a higher yielding va

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12

Dube, Elias Edo. "Wireless Farming: a mobile and Wireless Sensor Network based application to create farm field monitoring and plant protection for sustainable crop production and poverty reduction." Thesis, Malmö högskola, Fakulteten för teknik och samhälle (TS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20488.

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There is a remarkable growth in the field of Information Communication Technology (ICT) in Developing Countries (DCs). Telecommunication is one of the areas where ICT is recording an ongoing rapid change. Mobile phones are becoming pervasive in daily scenario; and among the beneficiaries of this are farmers. Farmers are using mobile phones in executing their farming business and daily life. At the same time, Wireless Sensor Networks (WSNs) are also showing a result in developed part of our world. WSNs potential in sensing various environmental condition, their affordability and applicability m

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13

Stefani, Nicola. "Energy from crops: experimental study and dynamic simulation of biogas production by anaerobic digestion of complex substrates." Doctoral thesis, Università degli studi di Trieste, 2011. http://hdl.handle.net/10077/4506.

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2009/2010<br>Anaerobic digestion (AD) is a biological process which allows the removal of high organic-loading and potentially polluting substances by their transformation into biogas, a mixture of methane and carbon dioxide, prevalently. AD presents many other advantages: it has a low energy consumption and low construction costs with a relatively simple plant technology. Actually, since anaerobic bacteria work more efficiently at room temperature or higher, AD can be profitably applied in developing countries. Biogas production is a foundamental parameter of AD because it is the main index

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14

Stone, Amanda Leigh. "Development of a more sustainable sweetpotato production system in Alabama." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/STONE_AMANDA_35.pdf.

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15

Bonaguro, Jaco Emanuele. "Environmental analysis of sustainable production practices applied to floriculture crops in Veneto region." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426315.

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The widespread use of protected cultivation plays a decisive role in the economic panorama of European and Mediterranean agriculture, both under a social, by number of employed, and an economic point of view, by total GSP (Gross Selling Production) and number of satellite activities. In recent years, growers are facing a continuous downward pressure on their profit margins because of stagnant prices and rising costs. One option for small-sized companies to maintain competitiveness is to focus on specialty products, typical local flowers and plants, and seasonal products. The good responsiven

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16

Clarke, Gary C. "Patterns of cone production in Sitka spruce (Picea sitchensis (Bong.) Carr.) and the prediction of cone crops." Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU090388.

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The location of cones in crowns of grafts and mature planted tress was studied in detail and relationships between cone type and shoot characteristics were investigated. The results enabled a regression model to be developed to relate cone counts in certain crown zones to overall cone bearing. It was demonstrated that there are patterns of cone production in the crowns of <I>Picea sitchensis. </I>Preferred zones for female bearing are high in the tree. Male cones tend to occur lower in the tree and more proximal to the stem than female cones. As total female cone production increases, cones ar

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17

Raut, Yogendra Y. "Sustainable Bioenergy Feedstock Production Using Long-Term (1999-2014) Conservation Reserve Program Land." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu148344789416295.

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18

Gidi, Lungile Sivuyile. "Rural households livelihoods' strategies and opportunities with regard to farming: a case of Intsika Yethu Local Municipality." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007218.

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South Africa and other developing countries are grappling with high levels of poverty as a result of slow to negligible rural development. Irrigation development is one essential component that can be used to address the challenges faced by smallholder farmers in rural areas. In the President‟s “State of the Nation Address” in 2011, the President of South Africa outlined measures to reduce hunger and poverty in communal areas through enhanced government‟s expenditures in rural infrastructure developments, especially for such amenities as irrigation and roads, with a view to promoting food secu

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19

Patterson, R. G. "A study of the soils and agronomy of a high country catchment." Lincoln University, 1993. http://hdl.handle.net/10182/1315.

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This study was undertaken to research the principles and practices behind increased pasture productivity on Longslip Station, Omarama. A range of landscape - soil - climate - plant systems were identified, then analysed and the legume responses measured. By isolating cause and effect and appreciating the driving variables of each system, lessons learnt could be reliably and objectively transferred to the rest of the farm. Extrapolation to the balance of the property (15,150 ha) permitted immediate large-scale development and engendered confidence to lending institutions, Lands Department, catc

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20

Hendriks, Joseph. "An analysis of precision agriculture in the South African summer grain producing areas / Hendriks J." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7318.

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Both globally and locally, agriculture faces ever increasing challenges such as high input costs, strict environmental laws, decrease in land for cultivation and an increase in demand due to the growing global population. Profitability and sustainability requires more effective production systems. Precision agriculture is identified as such a system and is built upon a system approach that aims to restructure the total system of agriculture towards low input, high efficiency and sustainable agriculture. The aim of this study was to analyse the state of precision agriculture in the summer grain

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21

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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22

Norr, Patrik. "Analysis and assessment of biogas production potential in Sweden for 2050." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-393916.

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The world is about to shift from fossil fuel dependency to independency. The national agenda of Sweden has put forth future goals of becoming a zero net greenhouse gas emitter by the year 2045 and before that, having an 80 % fossil fuel independent transportation fleet by 2030. In order to achieve these goals, the form of energy used in the transport sector needs to be changed into a more renewable solution. Biogas could be part of the solution. The aim of this report has been to review earlier research regarding the future biogas potential in Sweden and to examine how realistic and practicall

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23

COLOMBO, BIANCA. "POLYHYDROXYALKANOATES (PHAS) PRODUCTION FROM AGRO-INDUSTRIAL AND URBAN WASTES, CO2 AND ENERGY CROPS BY MIXED MICROBIAL CULTURES." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/603463.

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Modern society is forced to deal with two main problems: a growing scarcity of resources and a growing production of waste. The unsustainability of the current linear economic model “make, use, dispose” originated the concept of “circular economy” that aims to reduce the environmental impact through measures in favour of a more sustainable development, such as the use of renewable energy and waste recycling. Unlike the traditional linear model, the circular economy keeps resources in use for as long as possible, extracts the maximum value from them whilst in use, then recovers and regenerates

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24

Senate, University of Arizona Faculty. "Faculty Senate Minutes March 5, 2012." University of Arizona Faculty Senate (Tucson, AZ), 2012. http://hdl.handle.net/10150/222811.

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25

Fine, Julie S. "Integrating Cover Crop Mixtures and No-Till for Sustainable Sweet Corn Production in the Northeast." 2018. https://scholarworks.umass.edu/masters_theses_2/637.

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Fall-planted forage radish (Raphanus sativus L. longipinnatus) cover crops have shown successful weed suppression and recycling of fall-captured nutrients. This research evaluated the nutrient cycling and weed suppressive benefits of forage radish cover crop mixtures to develop an integrated system for no-till sweet corn (Zea mays L. var rugosa) production that improves crop yield and soil health. Treatments included forage radish (FR), oats (Avena sativa L.) and forage radish (OFR), a mixture of peas (Pisum sativum subsp arvense L.), oats and forage radish (POFR), and no cover crop control (N

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26

Wangiyana, Wayan, University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "Farming systems management of arbuscular mycorrhizal fungi for sustainable crop production in rice-based cropping systems." 2004. http://handle.uws.edu.au:8081/1959.7/14704.

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In Lombok (Indonesia), annual cropping patterns in irrigated areas are divided into three cropping cycles of four months each. In better irrigation schemes, there are normally two irrigated flooded-rice crops, i.e. wet season and dry season lowland rice crops in sequence, followed by one non-rice crop cycle during the driest months (this is referred to as the twice-rice system). In less developed irrigation schemes, one lowland rice crop is normally grown during the rainy season, followed during the driest months by two cycles of non-rice crops, or a non-rice crop and a fallow (this is referre

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Wangiyana, Wayan. "Farming systems management of arbuscular mycorrhizal fungi for sustainable crop production in rice-based cropping systems." Thesis, 2004. http://handle.uws.edu.au:8081/1959.7/14704.

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In Lombok (Indonesia), annual cropping patterns in irrigated areas are divided into three cropping cycles of four months each. In better irrigation schemes, there are normally two irrigated flooded-rice crops, i.e. wet season and dry season lowland rice crops in sequence, followed by one non-rice crop cycle during the driest months (this is referred to as the twice-rice system). In less developed irrigation schemes, one lowland rice crop is normally grown during the rainy season, followed during the driest months by two cycles of non-rice crops, or a non-rice crop and a fallow (this is referre

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(7037720), Teng Yang. "PRODUCTION AND NUTRITION RECOVERY OF CROPS IN A RECIRCULATING AQUAPONIC SYSTEMS." Thesis, 2019.

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<div>The goal of this research was to improve crop yield and quality and enhance nutrient use efficiency of aquaponics for the development of sustainable aquaponic production system. Aquaponics is the integration of aquaculture and hydroponics by recirculating water and residual nutrients resulting from aquaculture wastewater into hydroponic crop production. The project had four objectives. The first objective was to characterize nutrient composition and accumulation in recirculating water and plant parts of tomato, basil, and lettuce grown in aquaponic systems, and to compare their growth and

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(11389928), Maria Whitton. "Rehabilitation of soil microbial communities in Queensland Pasture Dieback." Thesis, 2023. https://figshare.com/articles/thesis/Rehabilitation_of_soil_microbial_communities_in_Queensland_Pasture_Dieback/25216136.

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The beef cattle industry in Australia is a substantial source of income, especially in Queensland, which has almost half of the national herd. This industry relies mainly on grazing pasture. Therefore, a healthy pasture system is of the utmost importance as it provides the livestock with the nutrition needed to generate a good quality product. However, pasture dieback, a syndrome or disease of unknown origin affecting grasses across Queensland and New South Wales, has been a significant issue for graziers. The affected grass presents red or yellowing of the tip of older leaves, spreading to th

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(12804776), Stephen Barry Johnson. "Nitrogen fixation by potential ley pasture legumes for Central Queensland." Thesis, 1997. https://figshare.com/articles/thesis/Nitrogen_fixation_by_potential_ley_pasture_legumes_for_Central_Queensland/20010641.

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<p>Yield decline following continuous cropping cycles in Central Queensland has been attributed to the declining soil nitrogen status. In this study an assessment of the level of nitrogen fixation was made to assist in the selection of potential ley pasture legumes for use in rotational systems to achieve sustainable cropping yields.</p> <p>Twenty one winter and summer growing legumes were evaluated for nitrogen fixation in glasshouse trials in two seasons. Nitrogen fixation was determined using the hydrogen evolution technique (an instantaneous measure of fixation rate) in an artificial media

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(19140385), Grant Xinghong Zhu. "Optimising wheat production through management in the semi-arid tropics of Central Queensland." Thesis, 2001. https://figshare.com/articles/thesis/Optimising_wheat_production_through_management_in_the_semi-arid_tropics_of_Central_Queensland/26308264.

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<p dir="ltr">Optimisation of wheat productivity encompasses the improvement of total aboveground dry matter (AGDM) for hay and grain yield, harvest index, and grain quality, through improved efficiencies of water and nutrient use (WUE and NUE s leads to increasing profitability and sustainability of farming systems. To achieve this objective, defoliation experiments over three seasons (1997, 1998 and 1999) and fertiliser treatments on wheat during the same period were conducted at Biloela, Jambin and Alton Downs in Central Queensland (CQ).</p><p dir="ltr">Overall, defoliation at the middle til

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Viegas, Edmunda da Silva Soares. "Prospects for sustainable crop production technologies in East Timor : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy (PhD) in Natural Resource Management, Institute of Natural Resources, Massey University, Palmerston North, New Zealand." 2006. http://hdl.handle.net/10179/1516.

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The prospects of sustainable crop production technologies in East Timor were discerned with relevant case studies and experimental data. An overview of the agricultural development in East Timor with particular emphasis on the traditional farming and cropping systems was presented complemented by the discussion on the aspects of agricultural mechanization and technological change and their socioeconomic ramifications on food security. Empirical data from tillage trials, established both in East Timor and New Zealand, were gathered and discussed in the quest for a better understanding of tillag

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33

Maponya, Phokele Isaac. "Climate change and agricultural production in Limpopo Province : impacts and adaptation options." Thesis, 2012. http://hdl.handle.net/10500/19116.

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The primary aim of my research was to identify the impacts and adaptation options of climate variability and change on agricultural production in Limpopo province. The following objectives were identified: To understand the impacts of climate variability and change on agricultural production in Limpopo province , To assess the impacts of climate variability and change on agricultural production in Limpopo province and To identify adaptation measures that reduces the impacts of climate variability and change on agricultural production in Limpopo province. A representative sample of 300 fa

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Kaini, Santosh. "Climate change impacts on river water availability for irrigation, crop irrigation water requirements and canal system capacity needs in an irrigation scheme in Nepal." Thesis, 2021. https://vuir.vu.edu.au/42511/.

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The impacts of climate change on water resources and agriculture, accompanied by a growing population, have contributed to increasing food and water scarcity. Due to the continuing growth in population and changes in food requirement habits, the demand for agricultural products is increasing continuously. It has been projected that the rise in food demand will increase by 50-100% between 2009 to 2050. The irrigation sector plays a crucial role in the agricultural food production system, utilizing about 70% of the world‘s total annual water consumption. About 16% of the world‘s cropland is irri

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(9867779), Brodrick L. Deno. "COVER CROPPING FOR SUSTAINABLE CO-PRODUCTION OF BIOENERGY, FOOD, FEED (BFF) AND ENHANCEMENT OF ECOSYSTEM SERVICES (ES)." Thesis, 2020.

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Increasing food, feed, fiber, biofuel production on decreasing amounts of arable land while simultaneously enhancing ecosystem services is challenging. Strategic inclusion of winter rye (<i>Secale cereale</i>) for biomass, silage, grain and Kura clover (<i>Trifolium ambiguum</i>) living mulch into existing Midwestern cropping systems may offer alternative economic income for farmers without displacing or reducing yields of primary crops. Research was conducted at the Purdue Water Quality Field Station (WQFS) where net balances of water, carbon, nitrogen, and radiation can be measured, and gree

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Thamaga-Chitja, Joyce Magoshi. "Determining the potential for smallholder organic production among three farming groups through the development of an empirical and participatory decision support tool." Thesis, 2008. http://hdl.handle.net/10413/752.

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Organic farming is increasingly viewed as a plausible production system for sustainable agriculture for smallholder farmers. However, there is not enough scientific evidence and knowledge to advocate certified organic farming for African smallholder farmers who face several constraints related to production, storage and marketing. The potential for organic farming for smallholder farmers, faced by these constraints, is not clearly defined. As a result, this study set out to evaluate the production potential of organic agriculture among three smallholder farmer groups. Production questions were

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