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Dissertations / Theses on the topic 'Crop and soil mark'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

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.

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2

Brandsma, Richard Theodorus. "Soil conditioner effects on soil erosion, soil structure and crop performance." Thesis, University of Wolverhampton, 1997. http://hdl.handle.net/2436/99094.

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3

Riström, Emilia. "Siktning som saneringsmetod för metallförorenad mark." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105103.

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Toxic metals contaminate soil worldwide and thus serve as sever environmental threat. Therefore the purposes of this study were to investigate in which soil fractions that different heavy metals (Fe, As, Cu, Zn and Pb) could be found in contaminated soils and if it is possible to use sieving as a method for decontamination. Soil samples were collected from three different locations, the Nasa silver mine, the Blaiken-mine and Svalget environmental station. The samples were oven dried and later on sieved into six different fractions 8mm, 4 mm, 0.5 mm, 0.250mm, 0.063 mm and <0.063 mm. The frac

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4

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.

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5

Protopapas, Angelos L. "Stochastic hydrologic analysis of soil-crop-climate interactions." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14676.

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6

Chengere, Adera. "Soil erosion and crop productivity : assessment and prediction /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487843314694652.

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7

Subedi-Chalise, Kopila. "Impacts of Crop Residue and Cover Crops on Soil Hydrological Properties, Soil Water Storage and Water Use Efficiency of Soybean Crop." Thesis, South Dakota State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10265200.

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<p> Cover crops and crop residue play a multifunctional role in improving soil hydrological properties, soil water storage and water use efficiency (WUE). This study was conducted to better understand the role of crop residue and cover crop on soil properties and soil water dynamics. The study was conducted at the USDA-ARS North Central Agricultural Research Laboratory, located in Brookings, South Dakota. Two residue removal treatments that include low residue removal (LRR) and high residue removal (HRR) were established in 2000 with randomized complete block design under no-till corn (Zea may

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8

Eleki, Krisztina. "Soil management, crop rotations, and biomass removal effects on soil organic matter content." [Ames, Iowa : Iowa State University], 2007.

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9

He, Yuxin. "Crop residue management and its impacts on soil properties." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/19043.

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Doctor of Philosophy<br>Agronomy<br>DeAnn R. Presley<br>Crop residue removal for livestock feeding and biofuel production at large scales must be evaluated to assess impacts on soil productivity and properties. Among all the potential negative impacts, wind erosion is a major concern in the central Great Plains. We conducted an on-farm study from 2011 to 2013 by removing crop residue at five levels (0, 25, 50, 75, and 100%) to determine the effects of crop residue removal on soil wind erosion parameters such as dry aggregate size distribution including soil wind erodible fraction (EF <0.84 mm

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10

Santos, Francisco SÃrgio Ribeiro dos. "Production and nutrition in strawberry crop soil and hydroponic." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13165.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>Traditional soil based strawberry production currently faces some obstacles, both by excessive use of pesticides, as the diseases caused by fungi and other pathogens and ergonomic difficulties of cultivating the soil. Strawberry soilless cultivation combined with greenhouse and the use of substrate promotes some advantages such as: eliminating the use of products for soil disinfection, precocity, increased yields, better crop management conditions and crop protection against adverse weather conditions, pest attacks and diseases.. Th

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11

Satiro, Lucas Santos. "Crop prediction and soil response to sugarcane straw removal." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-03052018-171843/.

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Concerns about global warming and climate change have triggered a growing demand for renewable energy. In this scenario, the interest in using sugarcane straw as raw material for energy production has increased. However, straw plays an important role in maintaining soil quality. In addition, uncertainties as to produced straw amount and the straw removal impact on the stalk yield have raised doubts as to the use this raw material. In this sense, the objective this study was evaluate the short-term (2-year) the sugarcane straw removal impacts on soil and yield modeling of sugarcane stalk and st

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12

Abel, David Scott. "Cover crop effects on soil moisture and water quality." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/34650.

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Master of Science<br>Department of Agronomy<br>Nathan O. Nelson<br>Eutrophication of freshwater lakes and streams is linked to phosphorus (P) fertilizer loss from agriculture. Cover crops could help mitigate P loss but producers are concerned that they may use too much water. This study was conducted to better understand the effects cover crops have on soil moisture and P loss. Volumetric water content (θ) was measured at the Kansas Cover Crop Water Use research area at 10 depths throughout a 2.74 m soil profile in 5 cover crop treatments and compared to θ measured from a chemical fallow contr

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13

Ess, Daniel R. "Cover crop residue effects on machine-induced soil compaction." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164819/.

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14

West, Eric. "Effects Of Both Above And Below Ground Biomass On Soil Chemical, Physical And Biological Properties On A Coastal Plain Soil In North Carolina." NCSU, 2010. http://www.lib.ncsu.edu/theses/available/etd-02222010-194850/.

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The literature has shown the possibility to enhance many of the soil properties that improve production with additions of plant biomass to the soil in conjunction with long-term conservation tillage. Since it has been proven that reduced tillage is extremely beneficial to a soilâs health, the key question is if the incorporation of deep rooted cover crops and/or large quantities of above ground biomass over a two-year period would result in extensive improvements on a soilâs natural properties throughout the effective rooting depth, or is this too short of a time period for any beneficial effe

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15

Tao, Hsiao-Hang. "Crop residue management in oil palm plantations : soil quality, soil biota and ecosystem functions." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:ebcc3bd9-45c0-4d22-9fef-71dff4abecd3.

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The application of crop residues is one of the most common agricultural practices used to maintain soil ecosystems and crop productivity. This thesis focuses on the oil palm (Elaeis guineensis) agroecosystem, an important tropical crop that has expanded rapidly over the past four decades. Both land conversion and business-as-usual practices within the plantations have contributed to soil degradation. The application of oil palm residues, such as empty fruit bunches (EFB) and oil palm fronds, are thought to have positive effects on the soil ecosystem; yet there is currently a deficit of knowled

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16

Ahmad, Desa. "An investigation into wetland soil-implement mechanics." Thesis, Cranfield University, 1990. http://dspace.lib.cranfield.ac.uk/handle/1826/8785.

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An investigation was initiated to obtain some understanding on the behaviour of soil at higher moisture content and to explore the potential of preparing paddy fields with reduced amounts of water. This investigation comprised of three separate studies. Based on existing information that water could be reduced when soil clods were initially formed prior to flooding, the effects of clod size, clod initial moisture content and confining states on the rate of water uptake were explored. The moisture gradients within clods wetted and dried for different period of times were also studied. The resul

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17

Siefert, William A. "Effectiveness of a soil inoculant for improving crop yield on two Indiana soils." Virtual Press, 1992. http://liblink.bsu.edu/uhtbin/catkey/845948.

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Biological soil inoculants are products that contain beneficial microorganisms with the ability to increase plant-available nutrients. Soil inoculants are claimed to serve as a supplement for fertilizer N, improve germination and tilth, improve root systems, and increase crop quality and yield. The inoculant evaluated in this study was Effective Microorganisms (EM) produced by Nature Farm Foundation of Lompoc, California. A field trial with corn (Zea mays, L.) was conducted at Oakwood Organic Farm in East Central Indiana in 1992. Two soil types were used in the study, a Genesee silt loam (Fluv

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18

Ohu, John Olutunde. "Peatmoss influence on strength, hydraulic characteristics and crop production of compacted soils." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=71960.

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The quantitative effects of increasing the organic matter contents of three soils upon their susceptibility to compaction, the recovery of tilth after compaction and the fertility of the soils were investigated. These effects were further studied on the production of bush bean (Phaseolus vulgaris).<br>Soil consistency limits, soil water status, applied pressure and organic matter contents were used to predict shear strength, penetration resistance and water retention characteristics of compacted soils, with the aim of meeting the widespread demand for possible techniques of soil compaction pre

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19

Shahadha, Saadi Sattar. "Measured Soil Hydraulic Properties as RZWQM2 Input to Simulate Soil Water Dynamics and Crop Evapotranspiration." UKnowledge, 2018. https://uknowledge.uky.edu/pss_etds/110.

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Agricultural system models integrate many different processes that cannot all be measured in field experiments and help quantify soil water dynamics, crop evapotranspiration, and crop growth with high temporal resolution. Understanding soil water dynamics and crop evapotranspiration is essential to improve agricultural management of field crops. For example, the interaction between nitrogen application rate and water dynamics is not sufficiently understood. In most cases, model simulations deviate from field measurements, especially when model input parameters are indirectly and unspecifically

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20

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.

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21

Nambuthiri, Susmitha Surendran. "Soil water and crop growth processes in a farmer's field." Lexington, Ky. : [University of Kentucky Libraries], 2010. http://hdl.handle.net/10225/1140.

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Thesis (Ph. D.)--University of Kentucky, 2010.<br>Title from document title page (viewed on May 12, 2010). Document formatted into pages; contains: xii, 310 p. : ill. (some col.). Includes abstract and vita. Includes bibliographical references (p. 298-309).

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22

Hänninen, K. (Kaarina). "Tree - cover crop interactions: birch growth, competition and soil properties." Doctoral thesis, University of Oulu, 2002. http://urn.fi/urn:isbn:9514267184.

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Abstract The main objective of this thesis was to investigate tree - cover crop interactions and soil response in an intercropping system, in which leguminous and grass cover crops were used with birch (red-leaved Downy birch Betula pubescens L.). The investigation was conducted in two field experiments in a nursery and in a greenhouse experiment. In the latter the effect of the water supply in interspesific competition was also investigated. The cover crops in the field experiments were perennial clovers Trifolium pratense L., T. repens L. and T. hybridum L. and annual clovers T. incarnatum L

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23

Lloyd, David Paul Alex. "Hormonal regulation of crop architecture in response to strong soil." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33140/.

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The architecture of crop plants is determined by adaptation to environmental conditions within genetic constraints and has considerable influence on the ability of a crop to produce high yields. The abiotic stress of strong soil reduces growth of roots and shoots, limiting the yields of wheat and rice plants. This project investigates the hormonal signals mediating architectural responses to strong soil, aiming to improve the understanding of this plant-environment interaction. Strigolactones are plant hormones known to inhibit shoot branching (tillering in grasses) in a range of plant species

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24

Dalton, James A. "Contribution of upward soil water flux to crop water requirements." Thesis, University of Southampton, 2006. https://eprints.soton.ac.uk/344938/.

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25

Hänninen, Kaarina. "Tree-cover crop interactions : birch growth, competition and soil properties /." Oulu : Oulun Yliopisto, 2002. http://herkules.oulu.fi/isbn9514267184.

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26

Yeap, Simon Guo Hong. "Implications of soil water repellence for crop growth and nutrition." Thesis, Yeap, Simon Guo Hong (2020) Implications of soil water repellence for crop growth and nutrition. PhD thesis, Murdoch University, 2020. https://researchrepository.murdoch.edu.au/id/eprint/59040/.

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In water-limited environments, dryland crop and pasture production on water-repellent sandy soils is often constrained by reduced water infiltration, accentuated overland flow and soil erosion, unstable wetting patterns, and the development of preferential flow paths in the soil profile, which consequently cause considerable spatial heterogeneity in soil water content, increased prevalence of isolated dry zones, and decreased overall soil water retention. The same processes are also likely to affect soil nutrient bioavailability and plant nutrient uptake. Indeed, while problems with crop nutri

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27

Khandker, Md Humayun Kabir. "Crop growth and water-use from saline water tables." Thesis, University of Newcastle Upon Tyne, 1994. http://hdl.handle.net/10443/580.

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How much water can a crop abstract from below a saline water table and how does the salinity affect yield? These questions are important because shallow groundwater may represent a substantial resource in flat, low-lying areas, but may also represent a threat to sustainability where salinity is high. A series of experiments in a glasshouse aimed to elucidate irrigation management practice under salinity conditions and to develop a root uptake model under both osmotic and matric stresses. The extraction of soil water and groundwater by lettuce and perennial ryegrass crops were measured in three

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28

Assaeed, A. M. "Soil compaction and plant performance of forage crops." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234679.

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29

Reyes, Javier. "EXPLORING SPATIAL AND TEMPORAL VARIABILITY OF SOIL AND CROP PROCESSES FOR IRRIGATION MANAGEMENT." UKnowledge, 2018. https://uknowledge.uky.edu/pss_etds/107.

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Irrigation needs to be applied to soils in relatively humid regions such as western Kentucky to supply water for crop uptake to optimize and stabilize yields. Characterization of soil and crop variability at the field scale is needed to apply site specific management and to optimize water application. The objective of this work is to propose a characterization and modeling of soil and crop processes to improve irrigation management. Through an analysis of spatial and temporal behavior of soil and crop variables the variability in the field was identified. Integrative analysis of soil, crop, pr

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30

Battaglia, Martin. "Crop residue management effects on crop production, greenhouse gases emissions, and soil quality in the Mid-Atlantic USA." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/86483.

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Cellulosic biomass-to-bioenergy systems can provide environmental and economic benefits to modern societies, reducing the dependence on fossil-fuels and greenhouse gas emissions while simultaneously improving rural economies. Corn (Zea mays L.) stover and wheat straw (Triticum aestivum L.) residues have particular promise given these crops are widely grown and their cellulosic fractions present a captured resource as a co-product of grain production. Annual systems also offer the ability to change crops rapidly in response to changing market demands. However, concerns exist about residue remov

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31

Whelan, Brett Michael. "Reconciling continuous soil variation and crop yield : a study of some implications of within-field variability for site-specific crop management." Thesis, University of Sydney, 1998. https://hdl.handle.net/2123/27516.

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Within-field variability in cropping system attributes is often obvious but difficult to accurately and efficiently quantity. The magnitude of the variation also changes with attribute, location and time. Importantly, variability at this scale of the soil/crop system may give rise to economic, environmental and societal problems on cropping enterprises under traditional 'uniform' management. In general, the problems arise from a decision to use 'mean-of-field' information to guide the amelioration of an area which may result in zones being under-or over-treated. Gathering data on, and extracti

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32

Alsterhag, Elin. "Förslag till modell av kemikaliespridning i mark anpassad för användning vid räddningsinsats - Kemspill Mark 4.0." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8208.

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<p>After emergencies involving chemical spills it is of great importance that correct measures are taken with short notice, both for the security of people and in order to minimize future environmental consequences. The RIB-unit at the Swedish Rescue Services Agency initiated this study, the aim of which is to propose changes to the existing chemical transport calculation tool: Chemical Spill 3.4, included in RIB - Integrated Decision Support for Civil Protection, so that it can be used for decision support as well as in preventive work. A rough estimation of chemical transport in the subsurfa

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33

Munyaradzi, Sipho Musevenzo Ward Andrew D. "Predicting soil water deficits and crop yields for Seneca County 1988 /." Connect to resource, 1991. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1145449951.

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34

Olaya, Adriana Marcela Silva. "Soil organic carbon dynamics in sugarcane crop in south-central Brazil." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-12082014-144101/.

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Sugarcane cropping is an important component of the Brazil´s economy. As the main feedstock used to produce ethanol, the area occupied with this crop has meaningfully increased in the last years and continues to expand in order to attend to the national and international demand of this biofuel. Despite that it has been demonstrated that land-use transition into sugarcane can negatively impact the soil carbon (C) dynamics, little is known about the effect of those land use changes (LUC) processes on the distribution of soil organic carbon (SOC) within particle-size classes, and how management p

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35

Reinhardt, Theresa Ann. "Susceptible Crop Response to Soil Residues and Foliar Exposure of Dicamba." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28014.

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Dry bean, soybean, sugarbeet, and sunflower were tested for tolerance to dicamba residue in soil. Visible injury was seen on dry bean and soybean depending on location, but yield differences were not present. Increasing rates of glyphosate and dicamba caused injury to dry edible bean; however, final bean weight only differed from the nontreated when 18 g ha-1 dicamba was included. Dicamba applied at 1.8 g ha-1 caused a consistent delay in physiological maturity. Dicamba concentration in plants did not predict yield loss. Across the four market classes in the field, dicamba caused yield loss, b

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36

Munyaradzi, Sipho Musevenzo. "Predicting soil water deficits and crop yields for Seneca County 1988." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1145449951.

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37

Ma, Qifu. "Soil salinity and water stress modify crop sensitivity to SO2 exposure." Thesis, Ma, Qifu (1993) Soil salinity and water stress modify crop sensitivity to SO2 exposure. PhD thesis, Murdoch University, 1993. https://researchrepository.murdoch.edu.au/id/eprint/42300/.

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Sulphur dioxide (SO2) is a pnmary gaseous pollutant which has toxic effects on the growth, yield and quality of both agricultural and natural plant species. Although plant responses to SO2 exposure have been extensively studied, much less is understood concerning the influences of other environmental stresses on the expression of effects of gaseous air pollutants. Evaluation of such interactions should be of an economic importance in agriculture and horticulture since plants growing in the field usually encounter air pollution and other stresses simultaneously. Soil water stress and salinity a

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38

Waine, Toby William. "Non-invasive soil property measurement for precision farming." Thesis, Cranfield University, 1999. http://dspace.lib.cranfield.ac.uk/handle/1826/11322.

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This work investigates the application of new sensors to enable agronomists and farm managers to make decisions for variable treatment strategies at key crop growth stages. This is needed to improve the efficiency of crop production in the context of precision farming. Two non-invasive sensors were selected for investigation. These were: 1) The MGD-1 ion mobility gas detector made by Environics OY, Finland. 2) The EM38 electromagnetic induction (EMI) sensor made by Geonics Inc., Canada. The gas detector was used to determine residual nitrogen and to measure carbon dioxide gas as a surrogate in

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39

Hariharan, Janani. "Predictive Functional Profiling of Soil Microbes under Different Tillages and Crop Rotations in Ohio." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1435856176.

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40

Revathi, Palaniappan Natchammai. "Forest Machine Track-Soil Interaction." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142428.

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I många västeuropeiska länder har metoden för skogsavverkning ändrats från användning av motorsåg till ett mekaniserat skogsavverkningssystem känt som kortvirkesmetoden. Denna metod är baserad på en tvåmaskinslösning – en skördare som fäller, grenar och sågar träden enlig fördefinierade längder, och en skotare som transporterar stockarna till en lastplats för vidare transport till en bearbetningsanläggning. För att utveckla skogsmaskiner som är skonsammare för marken behövs en djupare förståelse av interaktionen mellan terrängen och dragfordonet. Huvudfokus i detta projekt ligger på bandgående

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41

Castellucci, Alessia. "Soil carbon cycle measurement and modelling in two crop managements and two climates." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24822/.

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The potential of soil carbon sequestration (SCS) in arable soil is well-established; however, it is difficult to estimate it with confidence, due to both: soil organic carbon (SOC) large variation in time and space, and large uncertainty in measurement methods. RothC model is a widely used model of C dynamics in soil often used to estimate SCS, but different versions exist for different pedoclimatic and agronomic conditions in which it is applied. Here, two management practices, Conventional Cropping System (CCS) and Efficient Cropping System (ECS, featuring catch crops and optimized field op

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42

Kjellin, Johan. "XRF-analys av förorenad mark : undersökning av felkällor och lämplig provbearbetning." Thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88915.

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<p>X-ray fluorescence (XRF) detection of heavy metals is a cost- and time-effective method for investigation of polluted areas. Compared to laboratory analysis, XRF analysis is limited by high detection limits and uncertainties in some situations. Preparation of samples is known to affect the results of measurements.</p><p>The purpose of this thesis is to bring a deeper understanding of how different factors affect the results of XRF-analysis. A large number of measurements have been made with the instruments Niton XLt 700 and Niton Xli 700. Results from measurements of lead, zinc and copper h

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43

Collins, Shane. "Residue composition influences nutrient release from crop residues." University of Western Australia. School of Earth and Geographical Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0171.

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[Truncated abstract] A greater adoption of stubble retention, minimum-till and no-till farming practices for the purposes of conserving soil, water and fertility requires a greater understanding of the complexity of physical and chemical interactions between the soil and crop residues. There is currently insufficient knowledge to allow reliable predictions of the effects of different residue types in different environments on soil fertility and crop growth, owing to the many residue characteristics and environmental interactions that have been shown to affect decomposition or nutrient release.

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44

McLaughlin, Michael John. "Phosphorus cycling in soil under wheat-pasture rotations /." Title page, contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phm1615.pdf.

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45

Rwehumbiza, Filbert. "The effect of seed and soil physical conditions on establishment of sorghum." Thesis, University of Aberdeen, 1994. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU538899.

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The studies reported here, used sorghum to: (i) investigate the effect of changes in the matric suction (m) of filter-paper on germination and water uptake (ii) assess the effect of seed vigour on seedling response to the m of filter paper and to soil mechanical impedance, (iii) investigate the effect of root-shoot interaction on establishment of seedlings subjected to mechanical impedance (MI), and (iv) evaluate the effects of different amounts of planting rain on crop establishment. A technique for controlling matric suction on seed test paper is described and used to study seed germination

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46

Jennings, John A. "Rotation interval, soil texture, and zone of influence studies on alfalfa autotoxicity /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9737851.

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47

Isaac, Gura. "Crop rotation and crop residue management effects under no till on the soil quality of two ecotopes in the Eastern Cape, South Africa." Thesis, University of Fort Hare, 2016. http://hdl.handle.net/10353/2934.

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The degradation of soil quality due to undesirable farming practices has reached alarming scales in the Eastern Cape and this has had negative repercussions on soil productivity and the environment in general. There is growing evidence that conservation agriculture (CA) practices involving minimal mechanical disturbance, maintaining permanent surface cover and embracing diverse crop rotations increase soil organic carbon (SOC) and therefore has potential to mitigate soil quality deterioration. A study was carried out at two sites located in two ecotopes to investigate the effects of crop resid

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48

Bullied, William John. "Alfalfa termination strategies to conserve soil moisture for no-till crop establishment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq23237.pdf.

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Gardner, Megan Bates. "Cover Crop Root Contributions to Soil Quality in an Organiz Maine Agroecosystem." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/GardnerMB2005.pdf.

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Bryant, Heather D. "Hybrid Mulch System: Effects on Crop Production, Economics, Weeds and Soil Quality." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/BryantHD2008.pdf.

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