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Tesis sobre el tema "Crop rotation"

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1

Shakoor, Arif. "Crop rotation planning using simulated annealing." Master's thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-02232010-020018/.

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2

Potter, Mark. "Biochemical studies of tissue glucosinolates for improvement of canola (Brassica napus) as a disease break within the southern Australian cereal rotation /." Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09php8678.pdf.

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Thesis (Ph.D) -- University of Adelaide, Depts. of Plant Science and Crop Protection, 1998.<br>Thesis (Ph.D.)--University of Adelaide, Depts. of Plant Science and Crop Protection, 1999? Bibliographical references: leaves 112-125.
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3

Balnytė, Skirmantė. "Agroecosystem Optimization by Crop Rotation, Catch Crop and Manure in Organic Farming." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20110902_143932-39161.

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To analyse the influence of crop rotations with a different ratio of nitrogen-fixing crops, catch crops and fertilisation with organic fertilisers on the following: 1. Soil enzyme activity; 2. Agrochemical properties of the soil and nitrogen balance; 3. Weed response; 4. Weed seed bank in the soil; 5. Crop yield and productivity.<br>Agroekosistemų optimizavimo augalų kaita, tarpiniais pasėliais ir organinėmis trąšomis ekologinėje žemdirbystėje tyrimai vykdyti 2004–2009 m., Lietuvos žemės ūkio universiteto Bandymų stotyje, sertifikuotame ekologinės žemdirbystės lauke, karbonatingame sekliai glė
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4

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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5

Atallah, Therese. "Studies on the effects of organic amendments on nutrient recycling and nitrogen supply in a biological approach to crop production." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364054.

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6

Humble, Shauna Marie. "Weeds and ground beetles (Coleoptera: Carabidae) as influenced by crop rotation type and crop input management." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62758.pdf.

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7

Castellazzi, M. S. "Spatio-temporal modelling of crop co-existence in European agricultural landscapes." Thesis, Cranfield University, 2007. http://dspace.lib.cranfield.ac.uk/handle/1826/3747.

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The environmental risk of growing genetically modified (GM) crops and particularly the spreading of GM genes to related non-GM crops is currently a concern in European agriculture. Because the risks of contamination are linked to the spatial and temporal arrangements of crops within the landscape, scenarios of crop arrangement are required to investigate the risks and potential coexistence measures. However, until recently, only manual methods were available to create scenarios. This thesis aims to provide a flexible referenced tool to create such scenarios. The model, called LandSFACTS, is a
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8

Herzog, Craig. "Canola Production as Influenced by Previous Crop and Tillage System." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1967998321&sid=7&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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9

Alexander, Peter Mark William. "Modelling the UK perennial energy crop market." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9645.

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Biomass produced from perennial energy crops, Miscanthus and willow or poplar grown as short-rotation coppice, is expected to contribute to UK renewable energy targets and reduce the carbon intensity of energy production. The UK Government has had incentives in place, targeting farmers and power plant investors to develop this market, but growth has been slower than anticipated. Market expansion requires farmers to select to grow these crops, and the construction of facilities, such as biomass power plants, to consume them. Farmer behaviour and preferences, including risk-aversion, are believe
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10

Gardiner, Ian O. "The effects of crop rotation and weed management on weed populations." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ39825.pdf.

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11

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.

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12

Muñoz, Fernando. "Improving nitrogen management in potatoes through crop rotation and enhanced uptake." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0006202.

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13

SALOTTI, IRENE. "Development of epidemiological models for wheat and legumes in crop rotation." Doctoral thesis, Università Cattolica del Sacro Cuore, 2022. http://hdl.handle.net/10280/115282.

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In patologia vegetale, un modello epidemiologico è una rappresentazione semplificata delle relazioni tra patogeno, ospite e ambiente che determinano se, quando e come un’epidemia si sviluppa nel tempo. La presente tesi raccoglie lo sviluppo di modelli meccanicistici, dinamici, guidati da variabili ambientali (weather-driven), che possono essere utilizzati per la difesa di precisione dalle principali malattie di frumento e leguminose in rotazione colture. Tramite l’applicazione dell’analisi dei sistemi alle informazioni contenute nella letteratura scientifica, ogni patosistema è stato analizzat
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14

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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15

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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16

Latta, Roy A. "Improving medic pastures in pasture-wheat rotations in the Mallee district of North-Western Victoria /." Title page, contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09A/09al364.pdf.

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17

Stein, Susanne [Verfasser]. "Spatial analysis of crop rotation practice in North-western Germany / Susanne Stein." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1218299193/34.

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18

Adu-Tutu, K. O., W. B. McCloskey, S. H. Husman, et al. "Weed Management and Agronomic Performance of a Cotton-Barely Double Crop Rotation." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/198166.

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The tillage operations required to grow an annual barley and cotton crop rotation were reduced by eliminating tillage prior to planting cotton, eliminating cultivations for weed control in cotton, and especially by eliminating tillage following cotton. A light activated, weed sensing automatic spot-spray system reduced the amount of spray volume and herbicide used by 40% to 60% at Marana and 36% to 56% at Maricopa in 2004. At Maricopa, a large number of volunteer cotton plants in the furrows of early planted no-till cotton reduced the spray volume savings from using the weed sensing automatic
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19

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.

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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
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20

Potgieter, F. J. "'n Besluitnemings ondersteuningsmodel vir die bepaling van die mees geskikte wisselboustelsel-ritme vir gemengde graanboerderye in die Koeberg." Thesis, Port Elizabeth Technikon, 2001. http://hdl.handle.net/10948/43.

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Weens die unieke eiesoortigheid van die mens is sy behoeftes vanselfsprekend uiters divers. Wat vir die een persoon prioriteit is, mag vir sy buurman geensins belangrik wees nie. Dit is egter ook ’n gegewe, dat die mens heelwat gemeenskaplike ervarings, emosies en behoeftes deel. Een hiervan is die behoefte wat hy het om te weet dat die besluit wat hy gaan of wil neem die regte een binne die konteks van sy keuse mag wees. Die woord ‘behoefte’ kan waarskynlik in hierdie geval vervang word met die begrip ‘genade’. Sonder om 'n platvorm vir debat te skep, word die stelling gehandhaaf dat ‘genade’
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21

Gathumbi, Stanley Mwangi. "Nitrogen sourcing by fast-growing legumes in pure and mixed species fallows in western Kenya." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322531.

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22

Barth, Neto Armindo. "Impact of grazing management and crop rotation on integrated crop-livestock system : implication on Italian ryegrass established by self-seeding." reponame:Repositório Institucional da UFPR, 2015. http://hdl.handle.net/1884/38017.

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Orientador : Prof. Dr. Paulo César de Faccio Carvalho<br>Co-orientador : Prof. Dr. Gilles Lemaire<br>Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Agronomia. Defesa: Curitiba, 25/02/2015<br>Inclui referências<br>Área de concentração: Produção vegetal<br>Resumo: Sistemas integrados de produção agropecuária (SIPA) são reconhecidos por sua produção sustentável, tanto agrícola quanto pecuária, devido a melhor utilização dos recursos naturais. Diferentes combinações e proporções de espécies animais e vegetais em SIPA são responsáveis por
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23

Brewer, Marin Talbot. "Effects of Biological Control and a Ryegrass Rotation on Rhizoctonia Disease of Potato." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/BrewerMT2003.pdf.

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24

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.

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25

Olsen, Davey J. R. "Determining Compost Carryover for Optimal Use in an Organic Corn Squash Rotation." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1458.

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Organically certified farms using compost to improve or maintain fertility rarely consider compost carryover and its impact on the determination of economically optimal application rates. Compost carryover is comprised of nutrient and non-nutrient elements. Both affect crop growth, yet carryover is typically described primarily in terms of nitrogen (N)-carryover only. This study tested a new method for estimating compost carryover on organically certified land and expressed carryover in units that capture both the nutrient and non-nutrient components. Compost carryover for five treatment rates
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26

Ullrich, Silke. "Weed Population Dynamics in Potato Cropping Systems as Affected by Rotation Crop, Cultivation, and Primary Tillage." Fogler Library, University of Maine, 2000. http://www.library.umaine.edu/theses/pdf/Ullrich.pdf.

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27

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.

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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.
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28

Jacobs, Addison Denae. "Influence of Cover Crop Species on Soil Physical Properties in a Corn-soybean Rotation." Thesis, Arkansas State University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10831039.

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<p> As crop land decreases and population increases, soil quality is becoming a concern. Utilizing cover crops in cropping systems could improve soil quality. This study examined 16 treatments of single-species cover crops, cover crop mixes, and two control treatments on a silt-loam soil, in a corn (<i> Zea mays</i> L.) - soybean (<i>Glycine max</i> L. <i> Merr</i>.) crop rotation under no-tillage, to determine their effect on soil physical properties. Cover crop biomass differed (p&lt;0.10) among treatments and produced a maximum of 15.6 Mg ha<sup>-1</sup> of biomass in the crimson clover tre
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29

Schmitt, Mattie Bree. "Factors Affecting Establishment and Growth of Cover Crops in a Corn-Soybean Rotation." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/31758.

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In the Midwest, it can be beneficial to interseed cover crops into corn (Zea mays L.) since there is a limited time for them to establish and grow after corn harvest. Research conducted in four environments in North Dakota quantified the impacts of planting method and time of planting when grown with or without corn competition on the establishment, and development of three cover crop species. Limited light intensity (less than 20%) under the corn canopy drastically reduced cover crop development. Soil water can also constrain cover crop establishment. Model simulations suggest soil water is m
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30

Simoes, Rui Pedro Mota Raper Randy L. "Reduction of soil compaction in a cotton and peanut rotation using conservation systems." Auburn, Ala., 2008. http://hdl.handle.net/10415/1533.

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31

Morris, Jennifer L. "Use of herbicides, tillage, and grazing cattle for establishment of corn in rotation with alfalfa and rye." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/45050.

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Six combinations of grazing, tillage, and herbicides were studied during 2 yr in a randomized block design to determine alfalfa (Medicago sativa) survival, corn (Zea mays) plant populations and corn growth in an alfalfa-corn rotation. Alfalfa was overseeded with rye (Secale cereale) in autumn prior to planting corn in spring of each year. Treatments were 1) non-grazed control with standard chemical treatments for no-till establishment of corn, 2) grazing alfalfa, then grazing rye until corn planting followed by dicamba application, 3) alfalfa grazing plus glyphosate prior to corn planting, 4)
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32

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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33

Human, Hans Jurie. "Identification of soil and biological factors in crop rotation systems with significance to wheat crop performance in the Overberg production area of South Africa." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019.1/2286.

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34

Pachta, Matthew J. "Risk analysis of tillage and crop rotation alternatives with winter wheat for south central Kansas." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3577.

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35

Seibutis, Vytautas. "Trumpų sėjomainos rotacijų agrobiologinis įvertinimas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050929_115234-56584.

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Lithuania’s agricultural reform resulted in significant changes in land use, i.e. in the emergence of small individual farms. As a result, the formerly most popular 7, 8, 9-course crop rotations, or even 5-6-course crop rotations became inapplicable on small farms, especially on those not involved in animal production and cultivation of grass forage. Multiple-course crop rotations would disperse the same crops over several places, and the fields would not be unacceptably small. This is especially problematic for market farms, where it is intended to have 1-2-3 main crops and adequately alterna
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36

Amisi, Karen Janila. "Strategies for managing weeds in a wheat, red clover, vegetable crop rotation transitioning to organic production." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1104246323.

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37

Amisi, Karen Janila. "Strategies for managing weeds in a wheat, red clover, vegetable crop rotation transitioning to organic production /." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1070933281.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Document formatted into pages; contains 154 p. Includes bibliographical references. Abstract available online via OhioLINK's ETD Center; full text release delayed at author's request until 2005 Dec 28.
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38

Izard, Erica Jean. "Seeking sustainability for organic cropping systems in the Northern Great Plains: legume green manure management strategies." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/izard/IzardE0807.pdf.

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39

Frank, Edward Todd Duffy Patricia Ann. "Selected topics in peanut production Economic feasibility of an energy crop on a South Alabama cotton-peanut farm, and, Do economies of scale exist on peanut farms in the Southeast? /." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/FRANK_EDWARD_47.pdf.

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40

Кірдан, М. А. "Агроекономічний аналіз рослинницької галузі ФГ «БІЛІ РОСИ» Чернігівської обл., Коропського району, с Понорниця та заходи поліпшення технології вирощування гречки в умовах Полісся". Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/20088.

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Кірдан, М. А. Агроекономічний аналіз рослинницької галузі ФГ «БІЛІ РОСИ» Чернігівської обл., Коропського району, с Понорниця та заходи поліпшення технології вирощування гречки в умовах Полісся: дипломна робота : 201 Агрономія/ М. А. Кірдан ; керівник роботи Локоть О. Ю; Національний університет «Чернігівська політехніка», кафедра аграрних технологій та лісового господарства. – Чернігів, 2020. – 73 с.<br>На сучасному етапі в рослинництві пріоритетним напрямом є виробництво продукції, що потребує меншого застосування ресурсів при максимальному використання потенціалу вирощуваних культур і рег
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41

Sudini, Hari Kishan Huettel Robin Norton. "Soil microbial community structure and aflatoxin contamination of peanuts." Auburn, Ala., 2009. http://hdl.handle.net/10415/1875.

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42

Röhricht, Christian, Sven Freydank, and Stefan Schröder. "Energiefruchtfolgen für D-Südstandorte - Entwicklung und Optimierung von standortangepassten Anbausystemen für Energiepflanzen im Fruchtfolgeregime auf D-Südstandorten." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-23886.

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Das Landesamt für Umwelt, Landwirtschaft und Geologie untersuchte auf einem D-Südstandort in der Dübener Heide acht verschiedene Fruchtfolgen mit Energiepflanzen zur Biogasproduktion. Untersucht wurde die Ertrags- und Biogasleistung. Für die Region wird empfohlen, den Anbau in fünfgliedrigen Fruchtfolgen vorzunehmen. Als ertragsstarke und ertragsstabile Energiepflanzen haben sich dabei Energiemais, Sudangras, Zuckerhirse und Kartoffeln bewährt. Sie sollten zu 30 bis maximal 60 % in der Fruchtfolge berücksichtigt werden. Von ökologischem (Humushaushalt) und ökonomischem Vorteil ist dabei der Au
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43

Salmerón-Miranda, Francisco. "Nitrogen use in a maize-bean rotation in Nicaragua : effects of organic and mineral fertilisers /." Uppsala : Dept. of Crop Production Ecology, Swedish University of Agricultural Sciences, 2008. http://epsilon.slu.se/200896.pdf.

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44

Ren, Tusheng. "Soil water and temperature regimes in winter wheat as affected by crop rotation, tillage and row spacing." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21624.pdf.

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45

Riofrío, Ordóñez Carlos Andrés. "Economics of introducing forage and livestock into alternative crop rotation systems during the transition to organic agriculture." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98779.

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The purpose of this study was to investigate the economic feasibility of alternative crop rotations and to determine the economic implications of including forages and livestock during the transition to organic agriculture in Nova Scotia. The rotation systems were distinguished by: (i) frequency of forage in the rotation, (ii) source of nutrient supply, and (iii) type of farming operation. The economic analysis was divided in two parts. The first part analysed data from a four-year crop rotation experiment, using enterprise budgeting and statistical methods to compare differences among rotatio
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46

Babini, Viviana <1963&gt. "Soil tillage and crop rotation effects on Triticum durum (Desf.) yield and mycotoxins content in its grain." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/429/1/Tesi_Viviana21-05-07_con_graf_mico.pdf.

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47

Babini, Viviana <1963&gt. "Soil tillage and crop rotation effects on Triticum durum (Desf.) yield and mycotoxins content in its grain." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/429/.

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48

Mupambwa, Hupenyu Allan. "Winter rotational cover crops effects on soil strength, aggregate stability and water conservation of a hardsetting cambisol in Eastern Cape Province, South Africa." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/453.

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Winter rotational cover crops (WRCC) are often used to boost soil fertility and plant nutrition. However, selection and use of WRCC for soil physical improvement is usually overlooked. The objective of this study was to determine the effects of WRCC on soil strength, aggregate stability and water conservation of a hardsetting soil. The soil physical properties were determined after four rotations of growing monocultures of vetch (Vicia dasycarpa cv. Max), lupin (Lupinus angustifolius cv. Tanjil) and oats (Avena sativa cv. Sederberg) and after two rotations of growing bicultures of oats (Avena
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49

Kyllmar, Katarina. "Nitrogen leaching in small agricultural catchments : modelling and monitoring for assessing state, trends and effects of counter-measures /." Uppsala : Dept. of Soil Sciences, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a485.pdf.

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Doel, J. M. "Accumulation and recovery of nitrogen in mixed farming systems using legumes and other fertility building crops." Thesis, Coventry University, 2012. http://curve.coventry.ac.uk/open/items/9dd4b790-1672-4b0e-9104-09439ddde7a2/1.

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Fertility-building crops (FBCs) offer the opportunity to alleviate the costs of inorganic fertiliser by providing an alternative supply of available nitrogen (N) in soils. A survey of relevant literature reviewed the types of FBCs, their nitrogen accumulation potentials, residue characteristics, and subsequent release patterns. It also identified a paucity of data concerning the response of different species to UK climatic, soil, and management conditions. In order to investigate these relationships further pot and field trials were established in 2007 at the Royal Agricultural College, Cirenc
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