Log in

Relevant bibliographies by topics / Crop systems / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Crop systems.

Dissertations / Theses on the topic 'Crop systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Crop systems.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Gayam, Narsi Reddy. "Risk in agriculture : a study of crop yield distributions and crop insurance." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35537.

Full text

Abstract:

Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology, Engineering Systems Division, 2006.<br>Includes bibliographical references (leaves 52-53).<br>Agriculture is a business fraught with risk. Crop production depends on climatic, geographical, biological, political, and economic factors, which introduce risks that are quantifiable given the appropriate mathematical and statistical methodologies. Accurate information about the nature of historical crop yields is an important modeling input that helps farmers, agribusinesses, and governmental bodies in managing risk and establish

APA, Harvard, Vancouver, ISO, and other styles

2

Mallory, Ellen B. "Crop/Livestock Integration Effects on Soil Quality, Crop Production, and Soil Nitrogen Dynamics." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/MalloryEB2007.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Madeira, Nogueira Filipe. "Movement of predators in arable crop systems." Doctoral thesis, Universitat de Lleida, 2014. http://hdl.handle.net/10803/285265.

Full text

Abstract:

L`abundància i dispersió d`O. majusculus no va ser diferent entre parcel-les de panís amb moderadament alta o baixa densitat de males herbes. Els caràbids, C. fuscipes, P. rufipes, P. cupreus i Metallina sp. i l`antocòrid O. majusculus presenten moviment bidireccional entre cultius adjacents de alfals i panís durant l'estació. En contrast, C. septempunctata només es va moure des de l`alfals cap al panís. Els individus d'O. majusculus i C. septempunctata que van colonitzar el panís a l'estadi vegetatiu provenien de l`alfals, indicant que l`alfals va ser la font d'aquests depredadors. No obstant

APA, Harvard, Vancouver, ISO, and other styles

4

Nogueira, Madeira Filipe José. "Movement of predators in arable crop systems." Doctoral thesis, Universitat de Lleida, 2014. http://hdl.handle.net/10803/285265.

Full text

Abstract:

L`abundància i dispersió d`O. majusculus no va ser diferent entre parcel-les de panís amb moderadament alta o baixa densitat de males herbes. Els caràbids, C. fuscipes, P. rufipes, P. cupreus i Metallina sp. i l`antocòrid O. majusculus presenten moviment bidireccional entre cultius adjacents de alfals i panís durant l'estació. En contrast, C. septempunctata només es va moure des de l`alfals cap al panís. Els individus d'O. majusculus i C. septempunctata que van colonitzar el panís a l'estadi vegetatiu provenien de l`alfals, indicant que l`alfals va ser la font d'aquests depredadors. No obstant

APA, Harvard, Vancouver, ISO, and other styles

5

Hector, D. J. "Capture of soil water by crop root systems." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378493.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Bramwell, Stephen George. "Mixed crop-livestock farming systems for the Inland Northwest, US." Pullman, Wash. : Washington State University, 2008. http://www.dissertations.wsu.edu/Thesis/Fall2008/s_bramwell_120308.pdf.

Full text

Abstract:

Thesis (M.S. in soil science)--Washington State University, December 2008.<br>Title from PDF title page (viewed on June 15, 2009). "Department of Crop and Soil Science." Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

7

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

8

Wang, Guangyao (Sam), and Kurt Noite. "Summer Cover Crop Use in Arizona Vegetable Production Systems." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010. http://hdl.handle.net/10150/147024.

Full text

Abstract:

4 pp.<br>Summer cover crops can add nitrogen to the soil, build up and maintain soil organic matter, suppress pest populations, mitigate soil erosion, and reduce nutrient leaching when they are used in Arizona vegetable systems. However, careful management is required since cover crops can modify the availability of soil nitrogen and other critical nutrients. The ratio between carbon to nitrogen (C:N) in decomposing cover crop biomass is a critical indicator of the overall process of breakdown and eventual release of nutrients. This article introduces five cover crops that could improve vege

APA, Harvard, Vancouver, ISO, and other styles

9

Prayitno, Shafiq. "Analysis of crop-machinery systems for wetland rice production." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386712.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Namaganda, Josephine Mary. "Nematode parasites of banana-root crop systems in Uganda." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320191.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Giostri, André Faé. "Production and enviromental services of integrated crop livestock systems." reponame:Repositório Institucional da UFPR, 2014. http://hdl.handle.net/1884/38123.

Full text

Abstract:

Orientador : Prof. Dr. Paulo C. de Faccio Carvalho<br>Co-orientador : Prof. Dr. Aníbal de Moraes<br>Co-orientadora : Drª. Laíse da Silveira Pontes<br>Co-orientador : Dr. Abad Chabbi<br>Co-orientador : Dr. Antônio Carlos Vargas Motta<br>Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Agronomia. Defesa: Curitiba, 27/10/2014<br>Inclui referências<br>Área de concentração: Produção vegetal<br>Resumo: Sistemas diversificados de produção agropecuária, tais como sistemas integrados de produção agropecuário (PISA) são uma alternativa para o au

APA, Harvard, Vancouver, ISO, and other styles

12

Kern, James D. "Water Quality Impacts of Cover Crop/Manure Management Systems." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/40385.

Full text

Abstract:

Crop production, soil system, water quality, and economic impacts of four corn silage production systems were compared through a field study including 16 plots (4 replications of each treatment). Systems included a rye cover crop and application of liquid dairy manure in the spring and fall. The four management systems were: 1) traditional, 2) double-crop, 3) roll-down, and 4) undercut. In the fourth system, manure was applied below the soil surface during the undercutting process. In all other systems, manure was surface-applied. In the third system, the rye crop was flattened with

APA, Harvard, Vancouver, ISO, and other styles

13

North, John Hartley. "Impact of neonicotinoids in mid-south row crop systems." Thesis, Mississippi State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10100377.

Full text

Abstract:

<p> Neonicotinoid seed treatments are widely used and highly effective against early season insect pests of all row crops throughout the Mid-South region of the United States. An analysis was performed to determine the value of neonicotinoid seed treatments across multiple trials in soybean, <i> Glycine max</i> L.; corn, <i>Zea mays</i> L.; cotton, <i> Gossypium hirsutum</i> L.; and sorghum, <i>Sorghum bicolor</i> L. production systems across the mid-southern region. Neonicotinoid seed treatments provided significant yield and economic increases when utilized the majority of the time. A second

APA, Harvard, Vancouver, ISO, and other styles

14

Kantanantha, Nantachai. "Crop decision planning under yield and price uncertainties." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/24676.

Full text

Abstract:

Thesis (Ph.D.)--Industrial and Systems Engineering, Georgia Institute of Technology, 2007.<br>Committee Co-Chair: Griffin, Paul; Committee Co-Chair: Serban, Nicoleta; Committee Member: Liang, Steven; Committee Member: Sharp, Gunter; Committee Member: Tsui, Kwok-Leung

APA, Harvard, Vancouver, ISO, and other styles

15

Semple, Adelaide Mary. "Nitrogen balance and changes in soil nutrients in reduced inputs systems of cropping." Thesis, Queen's University Belfast, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284399.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Norton, Elbert Randall. "Nutrient and crop management studies in irrigated cotton production systems." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/279773.

Full text

Abstract:

Increased efficiency in agricultural production is becoming increasingly important in the present economic climate. The three studies presented in this dissertation have been developed to help producers achieve a greater efficiency with respect to crop production. The first is the development of the cotton monitoring system (CMS). This software was developed as an end product to over ten years of research into cotton crop monitoring. It allows for the entry of crop growth and development data, along with other crop inputs. All growth indices are plotted against long-term baselines to indicate

APA, Harvard, Vancouver, ISO, and other styles

17

Gonzalez, Adrian. "Spatial pattern recognition for crop-livestock systems using multispectral data." Thesis, University of Edinburgh, 2008. http://hdl.handle.net/1842/3790.

Full text

Abstract:

Within the field of pattern recognition (PR) a very active area is the clustering and classification of multispectral data, which basically aims to allocate the right class of ground category to a reflectance or radiance signal. Generally, the problem complexity is related to the incorporation of spatial characteristics that are complementary to the nonlinearities of land surface process heterogeneity, remote sensing effects and multispectral features. The present research describes the application of learning machine methods to accomplish the above task by inducting a relationship between the

APA, Harvard, Vancouver, ISO, and other styles

18

Torres-Rojas, Esperanza. "Expression of diagnostic and therapeutic antibodies in crop plant systems." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Sleeper, Adam Maxey Sibley Jeffrey Lynn Chappell Jesse Alan. "Integration of intensive aquaculture and horticulture crop production." Auburn, Ala., 2009. http://hdl.handle.net/10415/1953.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Treadwell, Danielle Dion. "Tillage and cover crop management influence weeds, insects, soil and crop nutrients, crop development and yield in organically managed North Carolina sweetpotato Ipomoea batatas (L.) Lam. systems." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-06182005-181203/.

Full text

Abstract:

In 2004, North Carolina supplied 46% of the nations' sweetpotato and generated 79 million dollars for the state but of the 16,000 ha in production that year; only 405 ha were managed according to federal organic standards. A three-year field experiment was initiated in 2001 to evaluate organic sweetpotato ?Beauregard? production systems that varied in cover crop management and tillage. Three organic systems including 1) compost and no cover crop with tillage (Org-NC), 2) compost and cover crop incorporated prior to transplanting (Org-CI), and 3) compost and cover crop with reduced tillage (Org

APA, Harvard, Vancouver, ISO, and other styles

21

Kiyumi, Khalifa Salem Muhammad. "Greenhouse cucumber production systems in Oman: A study on the effects of cultivation practices on crop diseases and crop yields." Thesis, University of Reading, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485712.

Full text

Abstract:

The greenhouse sector in Oman has expanded significantly since 2001. With expansion have come problems associated with the production system. A comprehensive survey of current farmer practice in relation to production and protection activities was conducted in northern Oman in 2001-2004. Results showed an annual increase in greenhouse number of over 40% per year. A number of serious problems associated with greenhouse crop production were identified, in particular: (1) over reliance on a single crop (cucumber), (2) substantial losses due to pests and diseases, especially damping-off caused by

APA, Harvard, Vancouver, ISO, and other styles

22

Sievers, Taylor Jo. "Cover Crop Characteristics and Impacts on Agronomic Systems in Southern Illinois." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/theses/2001.

Full text

Abstract:

AN ABSTRACT OF THE THESIS OF Taylor J. Sievers, for the Master of Science degree in Plant, Soil, and Agricultural Systems, presented on May 13, 2016, at Southern Illinois University Carbondale. TITLE: COVER CROP CHARACTERISITICS AND IMPACTS ON AGRONOMIC SYSTEMS IN SOUTHERN ILLINOIS MAJOR PROFESSOR: Dr. Rachel L. Cook Midwestern farmers face the dual challenge of increasing crop production while reducing environmental impacts. Best management practices to decrease nutrient and soil loss in agronomic systems has fueled the resurgence of the cover cropping practice, but many growers are unce

APA, Harvard, Vancouver, ISO, and other styles

23

Deal, Michael William. "Net Primary Production in Three Bioenergy Crop Systems Following Land Conversion." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1309362383.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Melamed, Ricardo. "Corn growth, development and yield response to tillage - crop rotation systems." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1407403698.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Samson, Roger A. (Roger Anthony). "On-farm evaluation of cultivation, cover crops and chemical banding for crop and weed management in integrated farming systems." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55700.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Hitayezu, Felix. "Farm income effects of regional crop specilization in Rwanda." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69532.

Full text

Abstract:

In consideration of the chronic poverty of farmers in Rwanda as well as in other developing countries where self-sufficient agriculture is practiced, this study examines what the well studied theory of specialization and trade, if implemented, could bring to Rwandan farmers in terms of production and profits.<br>To attain this objective, a spatial optimization model with linear programming was built and used to maximize the potential production and net returns which were compared to those from the traditional system. The model was built in a way that it also shows the pattern of trade and quan

APA, Harvard, Vancouver, ISO, and other styles

27

Bartle, Samantha. "Establishing a new biofuel crop using System Thinking." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86519.

Full text

Abstract:

Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The complexity of adopting a new crop-based biodiesel feedstock into South Africa given the prevailing environmental, economic and social concerns facing the country are addressed in this study by utilising a Systems Thinking approach. Solaris is a new variety of Tobacco developed specifically as an energy crop over the last twelve years by Italian companies Plantechno and Sunchem. Small-scale trials have been underway over the last year in the Loskop Valley farming community in the Limpopo Province of South Africa. These tria

APA, Harvard, Vancouver, ISO, and other styles

28

Popoola, Sunday Ebenezer. "Interactions between mycorrhizal fungi and crop pathogens in inter-cropped farming systems." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=192319.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Burgess, Magdalena S. E. "Crop residue decomposition and nitrogen dynamics in corn under three tillage systems." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36879.

Full text

Abstract:

Decomposition and N dynamics of grain-corn residues were investigated in a field study in southwestern Quebec, with particular reference to the roles of different plant parts (stems, leaves etc.) in determining overall residue mass loss and N content. A litterbag study was conducted, with surface and buried placements in plots under three tillage systems (no-till, reduced tillage, and conventional tillage, established five years before litterbag placement). Residue mass loss and N content were monitored over a two-year period. Separate data were obtained for leaves, stems, husks, and cobs. Net

APA, Harvard, Vancouver, ISO, and other styles

30

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Pachta, Christopher James. "Improving irrigated cropping systems on the high plains using crop simulation models." Thesis, Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/316.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Rushton, Jonathan. "Quantitative methods for the economic assessment of smallholder crop-livestock farming systems." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336682.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Alghamdi, Rashad Saeed. "Nitrogen Mineralization Dynamics of Post Harvest Crop Residue in No-Till Systems." Diss., North Dakota State University, 2020. https://hdl.handle.net/10365/31945.

Full text

Abstract:

In North Dakota, adoption of conservation tillage practices has resulted in an accumulation of crop residue remaining on the soil surface. North Dakota producers receive a nitrogen credit for long-term no-till but due to previous crop residue this credit may not be realistic for providing partial nutrient needs to subsequent crops in a cool environment with a short growing season. Our objectives were to evaluate the N mineralization potential of common crop residues to determine whether crop residue accumulation in no-till systems can provide sufficient nitrogen quantities needed for subsequen

APA, Harvard, Vancouver, ISO, and other styles

34

Chopra, Shubh. "Development of mobile applications for crop scouting with small unmanned aircraft systems." Kansas State University, 2017. http://hdl.handle.net/2097/35507.

Full text

Abstract:

Master of Science<br>Department of Computer Science<br>Antonio R. Asebedo<br>Mitchell L. Neilsen<br>Small unmanned aircraft systems (sUAS) have been in commercial use since the1980’s and over 8-12% of its current uses are in the agricultural sector, but only involving limited uses like surveying, mapping and imaging, which is expected to increase to 47% according to AUVSI with the association of Artificial Intelligence over the next decade. Our research is one such effort to help farmers utilize advanced sUAS technology coupled with Artificial Intelligence and give them meaningful results in a

APA, Harvard, Vancouver, ISO, and other styles

35

Obeng, Eric. "Assessing Camelina sativa as a fallow replacement crop in wheat production systems." Diss., Kansas State University, 2018. http://hdl.handle.net/2097/38671.

Full text

Abstract:

Doctor of Philosophy<br>Department of Agronomy<br>Nathan O. Nelson<br>Augustine K. Obour<br>Emerging sustainability issues with summer-fallow period has prompted producers to identify fallow replacement crops in wheat (Triticum aestivum) production systems. Camelina [Camelina sativa (L.) Crantz] has been identified as a potential fallow replacement crop in the semiarid Great Plains. Camelina has uses in animal and human nutrition, biofuel production, and bio-based products. Three field experiments were conducted to develop production recommendations for camelina in wheat production systems in

APA, Harvard, Vancouver, ISO, and other styles

36

Tungate, Kimberly Denise. "Environmental factors influencing weed interference in agricultural systems." NCSU, 2004. http://www.lib.ncsu.edu/theses/available/etd-07072004-001526/.

Full text

Abstract:

In all agricultural systems using few or no herbicides, cultural and mechanical techniques are crucial to economic viability. Further advances in non-chemical weed control will require in-depth knowledge of weed biology. The objective of new strategies likely will be to alter competitive interactions between crop and weed species. An important part of weed biology, and often the basis for competitiveness, is species response to the environment. Environmental conditions differ greatly in different parts of the world. In agricultural systems, the low nitrogen status of some soils requires most c

APA, Harvard, Vancouver, ISO, and other styles

37

Teh, Christopher Boon Sung. "Modelling the partitioning of radiation capture and evapotranspiration in intercropping systems." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342094.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Gueneau, Arthur. "Crop water stress under climate change uncertainty : global policy and regional risk." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78495.

Full text

Abstract:

Thesis (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 113-121).<br>Fourty percent of all crops grown in the world today are grown using irrigation, and shifting precipitation patterns due to climate change are viewed as a major threat to food security. This thesis examines, in the framework of the MIT Integrated Global System Model, the potential impacts of climate change on crop water stress and the risk implications for policy makers due to underlyi

APA, Harvard, Vancouver, ISO, and other styles

39

Ghaffari, Abdolali. "Application of geographical information systems (GIS) and crop simulation modelling in sustainable agriculture." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312108.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Peoples, MB, J. Brockwell, DF Herridge, et al. "The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems." Symbiosis, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001480.

Full text

Abstract:

Abstract Data collated from around the world indicate that, for every tonne of shoot dry matter produced by crop legumes, the symbiotic relationship with rhizobia is responsible for fixing, on average on a whole plant basis (shoots and nodulated roots), the equivalent of 30-40 kg of nitrogen (N). Consequently, factors that directly influence legume growth (e.g. water and nutrient availability, disease incidence and pests) tend to be the main determinants of the amounts of N2 fixed. However, practices that either limit the presence of effective rhizobia in the soil (no inoculation, poor inocula

APA, Harvard, Vancouver, ISO, and other styles

41

Peoples, MB, IJ Rochester, BJR Alves, et al. "The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems." Balaban, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001675.

Full text

Abstract:

Abstract Data collated from around the world indicate that, for every tonne of shoot dry matter produced by crop legumes, the symbiotic relationship with rhizobia is responsible for fixing, on average on a whole plant basis (shoots and nodulated roots), the equivalent of 30-40 kg of nitrogen (N). Consequently, factors that directly influence legume growth (e.g. water and nutrient availability, disease incidence and pests) tend to be the main determinants of the amounts of N2 fixed. However, practices that either limit the presence of effective rhizobia in the soil (no inoculation, poor inocula

APA, Harvard, Vancouver, ISO, and other styles

42

Santos, James Pimentel. "The utilization of EIA techniques in food and cash crop systems of Brazil." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315376.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Jones, Stephen. "Nitrogen partitioning within different organic systems incorporating strip intercropping, sheep and crop rotation." Thesis, University of Reading, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250690.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Camarada, Castro Paulino. "A simulation study of crop production systems for the Central Highlands of Angola." Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363811.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Abreu, Daniel Carneiro de. "Whole-farm modeling approach to evaluate different crop rotations in organic dairy systems." Universidade Federal de Viçosa, 2014. http://www.locus.ufv.br/handle/123456789/6596.

Full text

Abstract:

Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2015-11-09T15:34:52Z No. of bitstreams: 1 texto completo.pdf: 492609 bytes, checksum: 66747ed601f7421b79e4e7f037a223b9 (MD5)<br>Made available in DSpace on 2015-11-09T15:34:52Z (GMT). No. of bitstreams: 1 texto completo.pdf: 492609 bytes, checksum: 66747ed601f7421b79e4e7f037a223b9 (MD5) Previous issue date: 2014-09-25<br>Fundação de Amparo à Pesquisa do Estado de Minas Gerais<br>O mercado de trigo (Triticum aestivum L.) orgânico para produção de pão cresceu em grande magnitude na região da Nova Inglaterra, nos Estados Unidos.

APA, Harvard, Vancouver, ISO, and other styles

46

Mashele, N'wa-Jama. "Crop yields from organic and conventional farming systems in South Africa's Southern Cape." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/11637.

Full text

Abstract:

South Africa (SA) is food secure on a national level, however citizens in rural and marginalised areas face household food insecurity due to lack of access to this food. South Africa has low fertility soils and scarce water resources. Climate change reports of unpredictable weather conditions will further exacerbate these challenges. The majority of the agricultural production methods in SA are industrialised and rely heavily on external inputs. Alternative agricultural production methods which are environmentally less taxing, are affordable and yield nutritious food, need to be investigated a

APA, Harvard, Vancouver, ISO, and other styles

47

Wakeham, Alison. "The development and application of immunological tests within horticultural crop disease management systems." Thesis, University of Worcester, 2014. http://eprints.worc.ac.uk/3729/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Troxler, Shawn Christopher. "EVALUATION OF PREEMERGENCE AND POSTEMERGENCE HERBICIDE SYSTEMS AND PHYSIOLOGICAL BEHAVIOR OF CGA-362622 ON PURPLE AND YELLOW NUTSEDGE (Cyperus rotundus L. and C. esculentus L.)." NCSU, 2002. http://www.lib.ncsu.edu/theses/available/etd-20020310-225606.

Full text

Abstract:

<p>Purple and yellow nutsedge are herbaceous perennial weeds that are among the world?s worst pests. Nutsedge species are problematic due to their perennial nature, longevity of tubers, and prolific tuber production. Due to the relatively difficulty in reducing purple and yellow nutsedge populations, herbicide-management programs in cropping systems that target nutsedge species need to be developed. Field studies were conducted to evaluate potential reduction in purple and yellow nutsedge populations using sulfentrazone and glyphosate management programs and site-specific management in a tobac

APA, Harvard, Vancouver, ISO, and other styles

49

Kravchenko, Anatoliy G. "Overcoming the rotational antagonism of corn following wheat in high residue cropping systems." Diss., Connect to online resource - MSU authorized users, 2006.

Find full text

Abstract:

Thesis (M. S.)--Michigan State University. Dept. of Crop and Soil Sciences, 2006.<br>Title from PDF t.p. (viewed on June 19, 2009) Includes bibliographical references (p. 94-99). Also issued in print.

APA, Harvard, Vancouver, ISO, and other styles

50

Makhuvha, Mmbengeni Constance. "An analysis of financial implications of switching between crop production systems in Middle Swartland." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96805.

Full text

Abstract:

Thesis (MScAgric)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Sustainability issues and the structural over-supply of wheat in the Western Cape since the middle 1990‟s have caused the introduction of alternative crop rotation systems in the Middle Swartland, a dry-land winter cereal production area of the Western Cape. Crop rotation systems typically consist of cereals and oilseed crops and pastures. Alternative crop rotations systems are currently scientifically evaluated at the Langgewens Experimental farm. Currently more than half the cultivated area in the Swartland is still

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!