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Dissertations / Theses on the topic 'Crop management practices'

Author: Grafiati

Published: 20 July 2024

Last updated: 31 July 2025

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1

Silvertooth, J. C. "Cultural and Management Practices for Pima Cotton Production." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/209590.

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The good use of cultural or agronomic practices is fundamental to the production of high yields and quality of American Pima cotton. In order for Pima farmers to maintain viable production operations, a continual review and improvement upon the existing set of cultural practices are in order. Basic aspects of crop production such as planting date management, soil fertility and plant nutrition, plant growth regulator use, crop termination, and defoliation are reviewed in this paper in relation to American Pima cotton production. Specific attention is also given to potassium (K) fertility manage

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2

Deryng, Delphine. "Simulating the effects of climate and land management practices on global crop yield." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=92347.

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Global warming resulting from increasing greenhouse gas emissions is a threat to global food production. A rise in temperatures along with a shift in precipitation regimes is expected to decrease production in the future. However, farm management, such as the choice of crop cultivar, planting decisions, and irrigation can help farmers to alleviate some of the potential crop yield losses from climate change. In order to estimate the role of climate and agricultural management practices on yield, a new global crop model, PEGASUS 1.0 (Predicting Ecosystem Goods And Services Using Scenarios) has b

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3

Banda, Alefa. "Adoption and crop productivity impacts of sustainable agricultural and land management practices in Zambia." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/63232.

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Agricultural productivity in the Sub Saharan African (SSA) region has been cited to be low (Suttie & Benfica, 2016). As a result, there is a consistent call for evolution in smallholder farming. In addition to improving agricultural productivity, this evolution should factor in adaptation to climate variability and change. To achieve this, the use of sound and sustainable agricultural and land management practices (SALMPs) stands paramount. Among these include: (1) improved agronomic practices such as the use of improved seed varieties (HYV), (2) integrated nutrient management practices (INM),

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4

Muratore, Thomas Joseph Jr. "LONG-TERM LAND MANAGEMENT PRACTICES AND THEIR EFFECT ON SOIL HEALTH AND CROP PRODUCTIVITY." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/115.

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Agricultural intensification reliant on monocrops could change soil health in a way that does not support maximum crop productivity. Twenty-nine-year-old no-till field plots at the University of Kentucky Spindletop research farm showed a significant reduction in corn yields from continuous corn plots compared to those from plots in various types of rotation. The objective of this study was to determine what role soil microbes might play in yield reduction and how management and time effects microbial community structure. Samples were collected from the following treatments: continuous corn (CC

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5

Palmer, Carol. "Reconstructing and interpreting ancient crop management practices : ethnobotanical investigations into traditional dryland farming in northern Jordan." Thesis, University of Sheffield, 1994. http://etheses.whiterose.ac.uk/1809/.

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This study is an exploration of agricultural decision-making and an investigation into the effects of different crop management practices on weed composition. The aim of this research is to enable the reconstruction of ancient crop management practices from archaeological weed assemblages and to inform archaeological interpretation, i.e. to interpret what the identified ancient crop management practices may imply. This particular Investigation focuses on con temporary and recent 'traditional' farmers in northern Jordan. The first aspect of this study looks at agricultural practice and agricult

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6

Huang, Xuewen. "Analysis of effects of soil properties, topographical variables and management practices on spatial-temporal variability of crop yields." Diss., Connect to online resource - MSU authorized users, 2008.

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7

Jordan, Daniel L. "IMPACT OF HIGH-INPUT PRODUCTION PRACTICES ON SOYBEAN YIELD." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/36.

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High-input management practices are often heavily marketed to producers to increase soybean [Glycine max (L) Merr.] yield in already high-yielding environments. Field research was conducted in three locations within 6 states (Arkansas, Iowa, Kentucky, Louisiana, Michigan, and Minnesota) in 2009 to determine the effect of seed treatment, inoculant, foliar fungicide, additional soil fertility beyond state recommendations, foliar fertilizer, increased population over state recommendations, and narrow row spacing on yield. The high-input system (combination of the management practices) yielded hig

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8

McHenry, Bailey Marie. "Balanced nutrition and crop production practices for the study of grain sorghum nutrient partitioning and closing yield gaps." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32725.

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Master of Science<br>Agronomy<br>Ignacio Ciampitti<br>P. V. Vara Prasad<br>Mid-west grain sorghum (Sorghum bicolor (L.) Moench) producers are currently obtaining much lower than attainable yields across varying environments, therefore, closing yield gaps will be important. Yield gaps are the difference between maximum economic attainable yield and current on-farm yields. Maximum economic yield can be achieved through the optimization of utilizing the best genotypes and management practices for the specific site-environment (soil-weather) combination. This research project examines several mana

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9

Nishigaki, Tomohiro. "Improvement of Water- and Nutrient-Use Efficiency with Optimum Agricultural Management Practices in Upland Cropping Systems in Morogoro, Tanzania." Kyoto University, 2017. http://hdl.handle.net/2433/228243.

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10

Sebetha, Erick Tshivetsi. "Evaluation of yield and protein content ot two cowpea cultivars grown under diferent management practices." Thesis, University of Limpopo, 2009. http://hdl.handle.net/10386/579.

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Thesis (M.Sc. (Horticulture)) --University of Limpopo, 2009<br>Field experiments were conducted at the University of Limpopo experimental farm, Syferkuil during 2005/06 and 2006/07 production seasons. This was initiated to examine the effect of leaf removal on cowpea biomass, protein content and grain yield under sole and binary cultures. Treatments consisted of cowpea varieties (Pan 311 and Red caloona), cropping systems (sole and intercropping) and cowpea-leaf pruning regimes (pruning and un-pruned). Sweet corn was planted, as a component crop in the intercropped plots while sole sweet co

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11

Georgis, Kidane. "The effect of fertiliser management practices on soil organic matter production in the semi-arid areas : a field and modelling approach." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09AFP/09afpg352.pdf.

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Bibliography: leaves 155-169. Studies the effect of nitrogen fertilizer on dry matter production under differing watering regimes. Investigates the accuracy of different crop and soil organic matter models for predicting crop yield, nitrogen uptake and changes in soil organic carbon and nitrogen. Compares the models with data from long-term field experiments on wheat in Australia and sorghum in Ethiopia. Finds that a higher crop yield and better nitrogen and water utilisation can be achieved if addition of nitrogen fertilizer is balanced with soil water.

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12

Balayara, Assa. "An Invasive Fruit Fly, Bactrocera dorsalis (Tephritidae), on Mango in Senegal: Impact on Mango Crop Production and Value, Marketing Practices, and Management." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/81513.

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The oriental fruit fly, Bactrocera dorsalis Hendel, is an economic tephritid that invaded Senegal in 2004 (Vayssieres et al. 2011). This work determined 1) Impact of B. dorsalis on mango crop production and value, and marketing practices, 2) Effect of neem and kaolin on its behavior and development (laboratory and field), and 3) Effect of treated soil with neem seed cake (NSC) and neem seed powder (NSP) on the larval-pupal survival and development (laboratory and field). Results revealed crop value (price/kg) was associated with infestation levels. P<0.0001, crop value decreased in highly infe

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13

Stark, Christine. "Effects of long- and short-term crop management on soil biological properties and nitrogen dynamics." Phd thesis, Lincoln University. Agriculture and Life Sciences Division, 2005. http://theses.lincoln.ac.nz/public/adt-NZLIU20070220.010748/.

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To date, there has been little research into the role of microbial community structure in the functioning of the soil ecosystem and on the links between microbial biomass size, microbial activity and key soil processes that drive nutrient availability. The maintenance of structural and functional diversity of the soil microbial community is essential to ensure the sustainability of agricultural production systems. Soils of the same type with similar fertility that had been under long-term organic and conventional crop management in Canterbury, New Zealand, were selected to investigate relation

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14

Stark, Christine H. "Effects of long- and short-term crop management on soil biological properties and nitrogen dynamics." Lincoln University, 2005. http://hdl.handle.net/10182/30.

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To date, there has been little research into the role of microbial community structure in the functioning of the soil ecosystem and on the links between microbial biomass size, microbial activity and key soil processes that drive nutrient availability. The maintenance of structural and functional diversity of the soil microbial community is essential to ensure the sustainability of agricultural production systems. Soils of the same type with similar fertility that had been under long-term organic and conventional crop management in Canterbury, New Zealand, were selected to investigate relation

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15

Dam, Rikke Friis. "Impacts of long term tillage and residue practices on selected soil properties." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=78344.

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A two year study was initiated in 2001 on a 2.4 ha site of mostly St. Amable loamy sand and shallow loamy sand at the Macdonald Campus Research Farm. This study sought to assess the effects of long term tillage and residue practices on soil physical properties and to relate these properties to their influence on total carbon, total nitrogen and soil microbial biomass-carbon. The site was set up as a factorial experiment with three tillage practices (no till---NT; reduced till---RT; and conventional till---CT) and two residue practices (with residue (grain corn), +R; without residue (sil

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16

sanguankeo, paolo. "IMPACT OF WEED MANAGEMENT PRACTICES ON GRAPEVINE GROWTH, YIELD COMPONENTS, PLANT AND ARTHROPOD ABUNDANCE, AND CARABID SEED PREDATION IN PASO ROBLES VINEYARD." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/168.

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In the Central Coast of California, USA, wine grape growers are making efforts to identify weed control practices that promote biodiversity in their vineyards while maintaining yields. A field study was conducted in Paso Robles, CA in 2006 and 2007 evaluating the effect on Zinfandel grape-vine growth and production, groundcover plant, and ground dwelling arthropod communities of five weed control practices: 1) flumioxazin, 2) simazine, 3) cultivation, 4) cover crop, and 5) untreated control. The herbicide treatments had the lowest weed biomass followed by the cultivation, being approximately 1

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17

Monteiro, José Eduardo Boffino de Almeida. "Microclima e ocorrência de ramulose no algodoeiro em diferentes densidades populacionais." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/11/11131/tde-12032003-145150/.

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Com o objetivo de avaliar o microclima e a ocorrência de ramulose (Colletotrichum gossypii South. var. cephalosporioides Costa) em diferentes densidades populacionais do algodoeiro (Gossypium hirsutum L. var. latifolium Hutch.), foi conduzido um experimento com as cultivares IAC 23 e Coodetec 401, em espaçamento de 0,9 m entre linhas e com 5, 10 e 15 plantas por metro na linha de plantio, perfazendo um total de seis tratamentos, subdivididos em parcelas inoculadas e não inoculadas com o fungo. A temperatura do ar medida na altura do terço superior da cultura apresentou diferença significativa

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18

Simon, Lena. "Le microbiome du sol : contrôle de Fusarium graminearum et transmission à l'environnement racinaire du blé sous l'effet de déterminants environnementaux et agronomiques." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0027.

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La réduction de l'utilisation des produits phytosanitaires constitue l'un des axes majeurs de la transition agroécologique. Dans ce contexte, il est urgent de développer des stratégies assurant une gestion efficace et durable de la pression parasitaire, tout en préservant l'environnement. La mobilisation du microbiome du sol, et notamment des communautés de bactéries qui le composent, représente une de ces solutions. S'il a été démontré qu'une partie de ces communautés était capable de limiter l'impact de pathogènes des cultures, les relations entre l'environnement de ce microbiome et sa capac

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19

Bampa, Francesca. "Options for climate change mitigation in agricultural soils and impact on crop and grassland production: a multi-scale study." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3424061.

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The decline of soil fertility is recognized by the European Union (EU) as the cause of yields reduction in many arable lands. The Soil Thematic Strategy proposed by the European Commission in 2006, identified the decline of organic matter as one of the main soil threats in EU. Organic carbon content is a recognised indicator of soil quality. Several studies have investigated this relationship through long-term field level experiments. This thesis presents a different approach: starting from data and information at EU level, a regional case study is investigated. The general objective of this

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20

Robin, Marie-Hélène. "Analyse et modélisation des effets des pratiques culturales et de la situation de production sur les dégâts causés par les bioagresseurs des cultures. Application au blé d’hiver." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2014INPT0067/document.

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La protection intégrée des cultures (PIC) apparaît comme une stratégie durable de protection des plantes contre les bioagresseurs, satisfaisant les exigences à la fois économiques, écologiques et sanitaires auxquelles est confrontée l’agriculture. L’amélioration des connaissances sur les interactions entre les bioagresseurs et les pratiques agricoles est indispensable afin de concevoir des méthodes de lutte plus économes en produits phytosanitaires Le modèle IPSIM (Injury Profile SIMulator), développé dans ce travail de thèse, vise à simuler l’effet des pratiques culturales, du pédoclimat et d

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21

Silvertooth, J. C. "Practical Uses of Crop Monitoring for Arizona Cotton." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/209588.

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22

Shahar, Rotem. "Tools to advance row crop best management practice (BMP) implementation in Florida's Lower Suwannee River Basin." [Gainesville, Fla.] : University of Florida, 2008. http://purl.fcla.edu/fcla/etd/UFE0022895.

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23

Stall, Karen Marie. "Evaluation of Sedimentation Control as a Best Management Practice for Removing Copper-based Crop Protectants in Plasticulture Runoff." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/32347.

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The fate and distribution of copper-based crop protectants, applied to tomato fields to protect against disease, were investigated in a greenhouse-scale simulation of farming conditions in a coastal environment. Following rainfall, 99% of the applied copper was found to remain on the fields sorbed to the soil and plants; most of the soil-bound copper was found sorbed to the top 2.5 centimeters of soil. Of the copper leaving the agricultural fields, 82% was found in the runoff with the majority, 74%, sorbed to the suspended solids. The remaining copper, 18%, leached through the soil and entered

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24

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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25

Asmah, Augustus E. "Vesicular-arbuscular mycorrhizal fungal infection in some tropical crops in relation to soil management practices." Thesis, University of Aberdeen, 1991. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU033750.

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The dependency of maize (Zea mays L.) and bambara groundnut (Vigna subterranea) grown in acid tropical soils, on the mycorrhizal condition for improved growth and nutrient uptake, and the effects of various management practices on root infection by vesicular-arbuscular mycorrhizal fungi in maize plants were investigated. The effect of soil pH on mycorrhiza formation in perennial ryegrass and maize was also investigated using a temperate soil in which pH levels had been maintained in the field over a long period. Infection of roots of maize and bambara groundnut plants by vesicular-arbuscular m

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26

Acquilano, Dayle Elizabeth. "A comparison of project management practices in academic research organizations (aros) and contract research organization (cros)." Thesis, Boston University, 2012. https://hdl.handle.net/2144/12257.

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Thesis (M.A.)--Boston University<br>With the increased costs of drug development, pharmaceutical companies outsource most of drug development to contract research organizations (CROs) and academic research organizations (AROs). Given the importance of the relationship between the contracting organization and pharmaceutical companies, project management has become the hallmark in conducting clinical trials. The purpose of this project was to identify whether there are differences in the project management practices of CROs and AROs who conduct clinical trials. An electronic survey and follow up

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27

Ikazaki, Kenta. "Development of a Land Management Practice for Wind Erosion Control and Improvement of Crop Production in the Sahel, West Africa." Kyoto University, 2010. http://hdl.handle.net/2433/120464.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第15421号<br>農博第1806号<br>新制||農||979(附属図書館)<br>学位論文||H22||N4520(農学部図書室)<br>27899<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授舟川晋也, 教授縄田栄治, 教授間藤徹<br>学位規則第4条第1項該当

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28

Sumani, John Bosco Baguri. "Exploring Perceptions of the Potential of Agricultural Insurance for Crop Risks Management Among Smallholder Farmers in Northern Ghana." Antioch University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1529494821429119.

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29

Anusontpornperm, Somchai. "Land evaluation using soil properties in relation to genesis and classification to make guidance on soil management for cassava crop practice." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413676.

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30

Kean, J. M. "Metapopulation theory in practice." Lincoln University, 1999. http://hdl.handle.net/10182/1372.

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A metapopulation is defined as a set of potential local populations among which dispersal may occur. Metapopulation theory has grown rapidly in recent years, but much has focused on the mathematical properties of metapopulations rather than their relevance to real systems. Indeed, barring some notable exceptions, metapopulation theory remains largely untested in the field. This thesis investigates the importance of metapopulation structure in the ‘real world’, firstly by building additional realism into metapopulation models, and secondly through a 3-year field study of a real metapopulation s

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31

(7479974), Michelle R. Hemler. "Understanding how crop insurance impacts adoption of conservation practices." Thesis, 2019.

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In recent years, agricultural magazine articles have positioned crop insurance requirements as a barrier to conservation adoption. Our research uses a mixed-methods design with Midwest conventional corn farmers to identify if crop insurance is a hindrance to adoption. Qualitative data was analyzed in Nvivo using thematic coding and quantitative data was analyzed using Stata statistical software. Our results indicate that crop insurance is not a direct barrier to adoption. Rather, farmers identify distinct and complimentary outcomes for risk-management from participating in both crop insurance

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32

Slawinski, Karl Ryan. "The effect of integrated management practices on crop and soil nutrient dynamics." 2010. http://hdl.handle.net/1993/29798.

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Passeira, Carolina Ramires. "Modelling carbon sequestration for alternative soil management practices of organic crop production." Master's thesis, 2012. http://hdl.handle.net/10216/68273.

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Passeira, Carolina Ramires. "Modelling carbon sequestration for alternative soil management practices of organic crop production." Dissertação, 2012. http://hdl.handle.net/10216/68273.

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35

Deryng, Delphine. "Simulating the effects of climate and land management practices on global crop yield." 2009. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92347.

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36

Graham, Martha Helena. "The effect of various crop residue management practices under sugarcane production on soil quality." Thesis, 2003. http://hdl.handle.net/10413/10163.

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This study examined the influence of different management practices under sugarcane production on soil chemical, biological and physical properties on a long-term (59yr) field experiment in KwaZulu-Natal. These management practices included conventional post-harvest burning of crop residues, with the tops either left on the soil surface or with tops removed, and green cane harvesting with the retention of crop residues on the soil surface as a trash blanket. Each of these treatments were either fertilized or did not receive fertilizer. The data collected was used to evaluate the effect of crop

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(9824864), Sushil Pandey. "Effects of soil health management practices on plant root development." Thesis, 2016. https://figshare.com/articles/thesis/Effects_of_soil_health_management_practices_on_plant_root_development/13387289.

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The plant root system is the connection between the aboveground biomass and the soil system, and it requires a healthy soil environment to support optimum root growth. A healthy and extensive root system allows the plant to explore a greater soil volume for water and nutrients, and thereby increase the likelihood of more productive crop.Intensive vegetable production systems with little or no organic materials incorporated into soil combined with heavy farm traffic and use of chemical fertilizers often lead to detrimental impacts on soil health characteristics, reducing capacity to support ext

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McKeown, Steven. "Discrimination of Agricultural Land Management Practices using Polarimetric Synthetic Aperture RADAR." Thesis, 2012. http://hdl.handle.net/10214/3901.

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This thesis investigates the sensitivity and separability of post-harvest tillage conditions using polarimetric Synthetic Aperture RADAR in southwestern Ontario. Variables examined include: linear polarizations HH, HV, and VV and polarimetric variables: pedestal height, co-polarized complex correlation coefficient magnitude, left and right co-polarized circular polarizations and co-polarized phase difference. Six fine-quad polarimetric, high incidence angle (49°) RADARSAT-2 images acquired over three dates in fall 2010 were used. Over 100 fields were monitored, coincident with satellite overp

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Bound, SA. "The impact of selected orchard management practices on apple (Malus domestica L.) fruit quality." Thesis, 2005. https://eprints.utas.edu.au/2492/1/Bound_thesis%5B1%5Dfront.pdf.

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Orchard profitability and sustainability are largely dependent on the proportion of crop that can be marketed as first quality (pack-out). While pack-out is directly related to average fruit quality, the visual components of quality, i.e. colour, size and skin finish, predominantly determine whether a premium price is achieved. Fruit quality is the result of a complex interaction of management and environmental factors. By understanding the impact of environment, culture, harvesting, handling and storage on fruit quality, growers should be able to improve both average quality in their crop

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40

McCormick, Ian. "Long-term impacts of tillage, crop rotation and cover crop systems on soil bacteria, archaea and their respective ammonia oxidizing communities in an Ontario agricultural soil." Thesis, 2013. http://hdl.handle.net/10214/6616.

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This research assessed the seasonal effects of contrasting tillage and crop rotation systems on soil ammonia oxidizing bacteria (AOB) and archaea (AOA). Four different cropping systems under till and no-till were analyzed in a 30 year-old agricultural field trial. Samples were collected during the 2010 growing season at times corresponding with agronomic events. Nucleic acids were preserved in the field and subsequently analyzed by quantitative real-time polymerase chain reactions (qPCR). Tillage decreased AOB activity and abundance in the plow layer (0-15 cm) immediately after fall moldboard

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Panomtaranichagul, Mattiga. "The effects of tillage practices and crop rotation systems on soil properties and water use efficiency / by Mattiga Panomtaranichagul." Thesis, 1997. http://hdl.handle.net/2440/19048.

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Bibliography: p. 291-301.<br>xxxii, 301 p. : ill. (some col.) ; 30 cm.<br>Basic hypothesis is that improved water use efficiency of rainfed crops can be achieved by adoption of tillage and sowing practices and crop rotation systems which improve surface and subsurface soil structure to increase the accession of rainfall and availability of soil water.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Soil Science, 1997?

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Panomtaranichagul, Mattiga. "The effects of tillage practices and crop rotation systems on soil properties and water use efficiency / by Mattiga Panomtaranichagul." 1997. http://hdl.handle.net/2440/19048.

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Bibliography: p. 291-301.<br>xxxii, 301 p. : ill. (some col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Basic hypothesis is that improved water use efficiency of rainfed crops can be achieved by adoption of tillage and sowing practices and crop rotation systems which improve surface and subsurface soil structure to increase the accession of rainfall and availability of soil water.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Soil Science, 1997?

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Kauffman, John M. "Investigating Cold Hardiness and Management Practices of Warm-season Putting Green Species in the Transition Zone." 2010. http://trace.tennessee.edu/utk_graddiss/811.

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Warm-season turf species are becoming increasingly popular for putting green use in the transition zone. Ultradwarf bermudagrass (Cynodon dactylon (L.)  C. transvaalensis Burtt-Davy) is the prevalent warm-season putting green species, but seashore paspalum (Paspalum vaginatum Swartz) and ‘Diamond’ zoysiagrass [Zoysia matrella (L.) Merr.] may also be grown in the transition zone. Warm-season species are susceptible to winter injury and may require different management regimes than cool-season species. Therefore, the objectives of this research were to assess the impacts of various managemen

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Lebea, Tebogo Johannes. "Tomato yield and early blight incidence in response to cultivar and irrigation management practices in the Giyani Municipality." Thesis, 2020. http://hdl.handle.net/10386/3349.

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Thesis (M. Agricultural Management (Plant Production)) -- University of Limpopo, 2020<br>Tomato is a major vegetable crop produced in Limpopo province by subsistence and commercial farmers. Biotic and abiotic factors such as diseases and drought affect its productivity and yield negatively. The most economically important tomato disease in Limpopo is early blight, caused by Alternaria solani. Early blight affects tomato growing under stressful conditions such as drought. The main aim of this study was to evaluate water management in tomato production and its effect on tomato yield, e

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Prgomet, Iva. "Effect of innovative crop management practices on physiological, nutritional and phytochemical characteristics of almond tree (Prunus amygdalus L.) products and coproducts." Doctoral thesis, 2019. http://hdl.handle.net/10348/9591.

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Ph.D. thesis - Agricultural Production Chains - From Fork to Farm -<br>A agricultura enfrenta sérios desafios, como as mudanças climáticas que contribuem para a escassez de água devido ao aumento da temperatura média, fenómenos irregulares como secas e inundações, crescimento da população que leva ao aumento do consumo de água e alimentos e, consequentemente, geram uma quantidade substancial de agro-residuos. A amêndoa (Prunus dulcis (Mill.) D.A. Webb) é o fruto seco mais produzido a nível mundial, seguindo a tendência crescente de procura de produtos resultantes da transformação da amêndoa d

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Freyenberger, Stanley G. "Emergence, yield, and yield-components responses to size and density separations of pearl millet seed produced by three management practices." 1986. http://hdl.handle.net/2097/22107.

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Schuster, Matthew D. "Annual bluegrass (Poa annua L.) emergence under different residue management practices in perennial ryegrass and determination of resistant and susceptible annual bluegrass germination under controlled temperature and moisture." Thesis, 1999. http://hdl.handle.net/1957/29112.

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With the loss of field burning the amount of crop residue that remains in perennial ryegrass fields has increased. As the amount of crop residue remaining in the field increases so does annual bluegrass. This has resulted in the increased use of herbicides to control annual bluegrass. However, this increased use has also resulted in herbicide-resistant annual bluegrass. Field experiments were initiated in 1997 to investigate residue management options available to growers and their impacts on annual bluegrass emergence. Two sites, Glaser and Wirth, were established with three residue managemen

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(10752345), Pragya Kandel. "ASSESSMENT OF POSTHARVEST PEST MANAGEMENT PRACTICES IN NEPAL AND EFFICACY OF HYPOXIA FOR CONTROLLING SITOPHILUS ORYZAE L. (COLEOPTERA: CURCULIONIDAE)." Thesis, 2021.

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Farmers in Nepal lose about a third of their harvested grain due to postharvest handling and storage. This has led to food insecurity and economic losses. Despite the importance of postharvest, the grain storage system in Nepal relies on traditional storage structures like bamboo granaries. The incidence of storage pests is reported up to 100% in these structures. To minimize the storage loss, farmers use different grain protection methods including toxic chemicals. Multiple cases of pesticides-related poisoning and deaths have been caused by misuse and overuse

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Chale-Matsau, Jacobeth Raesibe Bettina. "Persistence of Human Pathogens in a Crop Grown from Sewage Sludge Treated Soil." Thesis, 2005. http://hdl.handle.net/2263/28268.

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The advantages associated with the use of sewage sludge in agricultural land have motivated many countries to use sewage sludge for soil amendment purposes. South Africa’s deteriorated agricultural soil could benefit from this nutritional and cost effective product. However, the major shortcoming of sewage sludge is the presence of various pathogenic microorganisms. This raised concern amongst researchers with regard to public safety. The focus of this study, was to investigate the prevalence of pathogens in a crop grown in soil enriched with sewage sludge and to determine risk of infection th

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(9847298), Zongjian Yang. "Resource allocation within plants: Some theoretical and practical implications for control of plant development." Thesis, 2003. https://figshare.com/articles/thesis/Resource_allocation_within_plants_Some_theoretical_and_practical_implications_for_control_of_plant_development/13424417.

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A degree of in-crop management could provide growers with the option to manipulate growth and development in line with ambient weather conditions. Studies presented in this thesis explored this opportunity, and data so far collected support the 'nutrient diversion' hypothesis that internal resource availability and allocation play important roles in regulation of growth partitioning and phenological development. Different levels of defoliation were conducted on maize and cotton plants growing under contrasting water conditions to measure the effect of partial defoliation on their growth and

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