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1

Steffl, Nicholas James. "Relay-Sowing Soybean Into Established Winter Annual Cover Crops." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31714.

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Cover crop acreage continues to increase as soil, grazing, and ecosystem benefits become better known. The profit aspect of sustainability could be improved by producing intersown cover crops with an added commodity value. Objectives of this research were to determine if field pennycress, winter camelina, and winter rye could act as effective, feasible, intersown cover crops in soybean-soybean-corn, and, corn-soybean-corn crop sequences. Three sowing dates of each crop were established the previous fall, and soybean, relay-sown the following spring at Prosper and Casselton, ND. Experimenta
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Hui, Wun-fung, and 許桓峰. "Bird damage to vegetable crops in Long Valley during winter." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/194581.

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Long Valley is the largest agricultural wetland in Hong Kong and supports a high level of biodiversity. The implementation of Management Agreement project in Long Valley has successfully enhanced its conservation value through habitat management and various eco-agricultural practices. However, the conflict between profitable agricultural yield and bird conservation in the area has also been intensifying as reflected by the increasing number of complaints of bird-related crop damage from local farmers in winter. The study aimed to assess the extent and impact of crop damage caused by birds i
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Higgins, Todd R. "An economic analysis of the value of grazing winter cover crops." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/36221.

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Master of Agribusiness<br>Department of Agricultural Economics<br>Jason S. Bergtold<br>Cover crops can be used as forage for cattle and other grazing animals. This research investigated the net returns of using cover crops for forage or grazing under four scenarios. These scenarios were: 1) a mixed crop and livestock producer who owns a herd of cattle and has both dry or pregnant cows and weaned calves available to graze corn stover and cover crops; 2) a crop farmer who purchases stocker cattle for the purpose of grazing the cover crop and corn stover; 3) a crop farmer who leases out a corn
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Freeman, Oliver W. II. "Winter cover crops in corn and forage sorghum rotations in the Great Plains." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/17892.

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Doctor of Philosophy<br>Department of Agronomy<br>Mary Beth Kirkham<br>In Kansas, winter cover crops have a new interest with the development of summer crops for biofuel. When a crop is harvested for bioenergy, the residue is removed leaving the soil prone to erosion during the winter. It is possible that the use of winter cover crops may allow for more residue to remain in a field while keeping the soil from blowing. Therefore, the objective of this research was to determine the effect of two winter cover crops on the growth of two biofuel crops, corn (Zea mays L.) and forage sorghum [Sorg
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Geiszler, Melissa Marie. "Interseeding Cereal Rye and Winter Camelina into Corn in North Dakota." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/29214.

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Limited photosynthetically active radiation (PAR) can reduce interseeded cover crop growth in corn (Zea mays L.). Two experiments in North Dakota evaluated the effect that hybrid relative maturity (RM), row width, and cover crop planting date have on cereal rye (Secale cereale L.) and winter camelina [Camelina sativa (L.) Crantz.] establishment when interseeded into 80 and 89 RM hybrids at V7 and R4 growth stages in 56- and 76 cm corn row widths. Cover crop biomass was typically less than 100 kg ha-1. In the following spring larger amounts of PAR beneath the 80 RM hybrid increased cover crop b
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Vaughan, Jeffrey David. "Management and assessment of winter cover crop systems for supplying nitrogen to corn in the mid-Atlantic region of the United States." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-07212009-040446/.

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McDonald, Paul Bryant. "Management of self-seeding winter cereal cover crops in a soybean-corn rotation." [Ames, Iowa : Iowa State University], 2007.

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Daniel, James B. II. "Using Winter Annual Cover Crops in a Virginia No-till Cotton Production System." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/35681.

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Cotton (<i>Gossypium hirsutum</i> L.) is a low residue crop, that may not provide sufficient surface residue to reduce erosion and protect the soil. A winter annual cover crop could alleviate erosion between cotton crops. Field experiments were conducted to evaluate selected winter annual cover crops for biomass production, ground cover, and N assimilation. The cover crop treatments were monitored under no-till and conventional tillage systems for the effects on soil moisture, cotton yield and quality. Six cover crop treatments, crimson clover (<i>Trifolium incarnatum</i> L.), hairy vetch
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Buteler, Micaela. "Integrated management of the Wheat Stem Sawfly by exploiting semiochemicals to enhance trap crops." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/buteler/ButelerM0508.pdf.

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The wheat stem sawfly, Cephus cinctus Norton (WSS) causes significant damage in cereal crops in the northern Great Plains of North America. Recently, the use of winter wheat as a trap crop to protect spring wheat from this insect pest in a wheat-fallow cropping system was evaluated, yielding promising results. Subsequently, the overall objective of this dissertation research was to improve the efficacy of winter wheat trap crops to manage the WSS. Oviposition behavior studies in the presence of hosts infested by conspecifics showed that WSS did not avoid infested hosts. These results confirmed
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10

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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Cooper, Jeannie. "Modelling barley disease epidemics for use with decision support systems." Thesis, University of Aberdeen, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312358.

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In a field trial during 1995/96, epidemics of <I>Pyrenophora teres</I> and <I>Rhynchosporium secalis</I> were studied in winter barley with concurrent records of weather data to identify key environmental parameters that affect epidemics. Temperature was identified as a key influence in the onset of <I>P. teres</I> epidemics. Disease symptoms were observed to progress when daytime temperatures consistently reached 10°C and minimum nightime temperatures for the same period remained above 5°C. Short leaf wetness periods and longer photoperiods also correlated with increased disease levels during
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12

Brown, Alston Neal. "Factors affecting the nutritional composition and digestibility of corn for silage: Cover crops and cell wall composition." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78909.

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Corn silage is one of the major components in dairy cattle rations in the United States. Many factors affect the nutritional composition of corn for silage, such as cropping system, including cover crops, and the composition of the corn plant cell wall. The objectives of the first study were to determine the nutritional quality of different winter crops for silage and to determine the impact of the various winter crops on the succeeding productivity of corn and sorghum. Experimental plots were planted with 15 different winter crop treatments: 5 winter annual grasses in monoculture or with one
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Zuck, Peter Christopher. "Evaluation of alternative crops for management of Pratylenchus neglectus in Montana winter wheat production." Thesis, Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/zuck/ZuckP0510.pdf.

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A series of crop rotations were evaluated for their impacts on soil-borne populations of root lesion nematodes, Pratylenchus neglectus. Population changes, measured as the ratio of P. neglectus adults counted at harvest to those counted at planting time, was recorded under a series of two-year rotations alternating winter wheat with either fallow, barley, pea, lentil, canola, and camelina. Fallow, barley, pea, and camelina were found to have a neutral effect on nematode populations (p &lt; 0.001). Winter wheat and canola caused significant increases in populations, while lentils caused signifi
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Parker, Steven Roy. "Studies on some factors influencing the reliability of disease measurements in winter wheat crops." Thesis, University of Bristol, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336955.

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Bullard, Amanda Simpson. "Protein Indicators, Quality, and Yield of Winter Durum Wheat Grown in Virginia." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35457.

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Durum wheat (Triticum durum Desf.) is produced primarily in the Northern Great Plains and the Pacific Southwest of the United States. Current germplasm is predominantly of the spring growth habit. The objective of this study was to determine the feasibility of winter durum production in Virginia based upon both yield and quality parameters. Adaptation and yield potential of available winter durum lines were assessed from 1993-1998, in three physiographic regions in Virginia. The highest average durum yields were produced in the northern piedmont plateau at the Orange County location. Winter d
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16

Potgieter, Andries B. "Determining broadacre crop area estimates through the use of multi-temporal modis satellite imagery for major Australian winter crops." University of Southern Queensland, Faculty of Engineering and Surveying, 2009. http://eprints.usq.edu.au/archive/00006613/.

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[Abstract]: Since early settlement, agriculture has been one of the main industries contributing to the livelihoods of most rural communities in Australia. The wheat grain industry is Australia’s second largest agricultural export commodity, with an average value of $3.5 billion per annum. Climate variability and change, higher input costs, and world commodity markets have put increased pressure on the sustainability of the grain industry. This has lead to an increasing demand for accurate, objective and near real-time crop production information by industry. To generate such production estima
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17

Bilek, Meredith K. "Winter annual rye cover crops in no-till grain crop rotations impacts on soil physical properties and organic matter /." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7268.

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Thesis (M.S.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Natural Resource Sciences and Landscape Architecture. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Yi, Cuilin. "Management of Fusarium graminearum-inoculated crop residues effects on head blight, grain yield and grain quality of subsequent winter wheat crops /." [S.l. : s.n.], 2001. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9686268.

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Dube, Ernest. "Soil fertility enhancement through appropriate fertilizer management on winter cover crops in a conservation agriculture system." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1001044.

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A study was carried out to determine the effects of oat (Avena sativa) and grazing vetch (Vicia darsycapa) winter cover crops and fertilizer application on SOM, phosphorus (P) pools, nutrient availability, nutrient uptake, maize yield and seedbanks of problematic weeds in an irrigated maize-based conservation agriculture (CA) system. A separate experiment was carried out to investigate the effects of the winter cover crops on nitrogen (N) management, N use efficiency and profitability. After four years of continuous rotation, the winter cover crops significantly (p<0.05) increased particulate
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Pavuluri, Kiran. "Winter Barley as a Commodity Cover Crop in the Mid-Atlantic Coastal Plain and Evaluation of Soft Red Winter Wheat Nitrogen Use Efficiency by Genotype, and its Prediction of Nitrogen Use Efficiency through Canopy Spectral Reflectance in the Eastern US." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/47103.

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To understand the impact of N management on harvestable cover crop systems, seven research trials compared: 1) standard intensive management (SIM) (both fall and spring N application), 2) No fall N, a single spring N application, and 3) Cover N (no N application) effects on winter barley (Hordeum vulgare L.) plant biomass (PB), plant N uptake (PNU), grain yield, residual soil nitrate (RSN), and ammonium (RSA). In general, at winter dormancy, SIM resulted in increased PB and PNU but not RSN or RSA. At cover crop termination; SIM and the No fall N practices increased PNU, and at harvesting sta
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21

Smith, Luke B. "Overseeding annual ryegrass and cereal rye into soybean for winter forage and as a cover crop for weed control and soil conservation." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4312.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (July 14, 2006) Includes bibliographical references.
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22

Stefani, Faé Giovani. "Integrating Livestock And Winter Annual Forages Into A No-Till Corn Silage System." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1228162408.

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Minnaar, Martha Maria. "Constraints on photosynthesis and antioxidant metabolism in winter and summer crops induced by sulphur dioxide fumigation / Martha Maria Minnaar." Thesis, North-West University, 2012. http://hdl.handle.net/10394/9522.

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Recently, major advances have been made in developed countries elucidating the effects of air pollutants on crop plants. In contrast, similar studies on the effects of elevated SO2 concentrations on crops in developing countries such as South Africa are far less advanced. In South Africa, fossil fuel combustion is the main source of energy for most of the country. The tremendous increase in population size and consequental increase in energy demand has lead to considerable increases in fossil fuel burning. This phenomenon has lead to increases in tropospheric air pollutants such as SO2, NO2 an
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24

Norris, Robert Brooke. "Winter Annual Cover Crops Interseeded into Soybean in Eastern Virginia: Influence on Soil Nitrogen, Corn Yield, and In-Season Soil Nitrogen Tests." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/51173.

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The diverse cropping system of eastern Virginia's coastal plain offers limited opportunity to establish winter annual cover crops (WCC) for nitrogen (N) scavenging. The winter fallow niche after double-crop or full-season soybean (Glycine max L. Merr.) encompasses the majority of acres left fallow. Our objective was to evaluate interseeded WCC N scavenging performance following soybean and N supplying capacity to subsequent corn (Zea mays L.). Field studies were conducted at four different locations in each of the two study years. The experimental design was split plot with cereal rye, hai
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Holland, Jonathan Eddison. "Changes in soil physical properties under raised bed cropping /." Connect to thesis, 2006. http://eprints.unimelb.edu.au/archive/00002537.

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Ramsell, Jon. "Genetic variability of Wheat dwarf virus /." Uppsala : Dept. of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200797.pdf.

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Börjesdotter, Desirée. "Potential oil crops : cultivation of Barbarea verna, Barbarea vulgaris and Lepidium campestre /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5746-7.pdf.

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Madafiglio, Gregory Peter, University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "Population management of Raphanus raphanistrum L. (wild radish) by regulating seed production." THESIS_CSTE_CIT_Madafiglio_G.xml, 2002. http://handle.uws.edu.au:8081/1959.7/339.

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Raphanus raphanistrum L. (wild radish) is a widespread and economically problematic weed of winter crops including wheat (Triticum aestivum L.) in southern Australia. Management of the weed is achieved by a range of non-chemical and chemical techniques. Current management is failing to contain the weed, which is increasing in abundance and distribution. The characteristics of staggered recruitment, dormancy, rapid growth, competitive ability and high levels of seed production contribute to its persistence. The literature review concludes that weeds formed the basis for perpetuation of R. rapha
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Schappert, Alexandra [Verfasser], and Roland [Akademischer Betreuer] Gerhards. "Evaluating different management strategies to increase the effectiveness of winter cover crops as an integrated weed management measure / Alexandra Schappert ; Betreuer: Roland Gerhards." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2020. http://d-nb.info/1212509390/34.

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Gazola, Eduardo [UNESP]. "Desempenho de cultivares transgênicas de soja em sucessão a culturas de inverno em semeadura direta." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/86368.

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Made available in DSpace on 2014-06-11T19:22:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-07-28Bitstream added on 2014-06-13T19:07:33Z : No. of bitstreams: 1 gazola_e_me_botfca.pdf: 515907 bytes, checksum: 147c1f8c1d57f0773041fffb27a91fd1 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>O objetivo do trabalho foi avaliar o desempenho de cultivares transgênicas de soja (Glycine max (L.) Merrill) em sucessão a culturas de inverno na implantação do sistema de semeadura direta. O experimento foi conduzido na área experimental do Departamento de Produç
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Yano, Élcio Hiroyoshi [UNESP]. "Sucessão de culturas em sistemas integrados de produção." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/101939.

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Made available in DSpace on 2014-06-11T19:31:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-12-19Bitstream added on 2014-06-13T20:42:18Z : No. of bitstreams: 1 yano_eh_dr_botfca.pdf: 978840 bytes, checksum: 128042dc305593b9ba3a3b56612214a0 (MD5)<br>O uso do sistema plantio direto tem proporcionado uma série de transformações nas cadeias produtivas devido ao planejamento e à diversificação das atividades agrícolas com as ráticas racionais, o que vem aumentando a produção de grãos e carne no país. Devido à sua grande extensão territorial, as condições climáticas são irregulares, alg
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Vaitelytė, Birutė. "Patterns of distribution of insect pests (Ceutorhynchus spp., dasineura brassicae) on stems and pods of winter and spring oil seed rape crops and damage done by these pests." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20141124_140853-79060.

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Research objective. The study was aimed to establish development and distribution patterns of cabbage stem weevil (Ceutorhynchus pallidactylus), cabbage seed weevil (C. obstrictus) and Brassica pod midge (Dasineura brassicae) in winter and spring oilseed rape crops, to estimate insect damage, to compare the efficacy of insecticides of different mode of action and to determine the optimal timing of insecticide application. Research tasks. 1. To determine species abundance and diversity of Ceutorhynchus spp. infesting oilseed rape crops. 2. To study cabbage stem weevil’s (C. pallidactylus) biolo
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Gazola, Eduardo 1982. "Desempenho de cultivares transgênicas de soja em sucessão a culturas de inverno em semeadura direta /." Botucatu : [s.n.], 2008. http://hdl.handle.net/11449/86368.

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Orientador: Cláudio Cavariani<br>Banca: Leandro Borges Lemos<br>Banca: Luz Carlos Miranda<br>Resumo: O objetivo do trabalho foi avaliar o desempenho de cultivares transgênicas de soja (Glycine max (L.) Merrill) em sucessão a culturas de inverno na implantação do sistema de semeadura direta. O experimento foi conduzido na área experimental do Departamento de Produção Vegetal, na Faculdade de Ciências Agronômicas/UNESP, Campus de Botucatu-SP, durante o ano agrícola 2006/07. O delineamento experimental utilizado foi o de blocos casualizados, em esquema de parcelas subdivididas, com quatro repetiç
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Piano, Jeferson Tiago. "Manejos de cereais de inverno em sistema de integração lavoura pecuária e sua influencia sobre as propriedades físicas do solo, resíduos culturais e plantas daninhas." Universidade Estadual do Oeste do Paraná, 2014. http://tede.unioeste.br:8080/tede/handle/tede/1252.

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Made available in DSpace on 2017-07-10T17:36:57Z (GMT). No. of bitstreams: 1 2014_Diss_Jeferson_Tiago_Piano.pdf: 1013753 bytes, checksum: d7a290e824e835fc82cc2e6dc888c48f (MD5) Previous issue date: 2014-02-27<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The study aimed and was conducted to evaluate the effects of different managements of cereals grown and subjected to grazing on soil physical properties, quantity and nutrient content of winter crop residues, besides the incidence of weeds. The study was conducted in the experimental area of the State University of West
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Yano, Élcio Hiroyoshi 1974. "Sucessão de culturas em sistemas integrados de produção /." Botucatu : [s.n.], 2005. http://hdl.handle.net/11449/101939.

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Orientador: Sérgio Hugo Benez<br>Banca: Maria Helena Moraes<br>Banca: Luiz Malcoln Mano de Mello<br>Banca: Edgard Jardim Rosa Junior<br>Banca: Rubens Siqueira<br>Resumo: O uso do sistema plantio direto tem proporcionado uma série de transformações nas cadeias produtivas devido ao planejamento e à diversificação das atividades agrícolas com as ráticas racionais, o que vem aumentando a produção de grãos e carne no país. Devido à sua grande extensão territorial, as condições climáticas são irregulares, algumas regiões caracterizam-se por elevadas temperaturas, com chuvas de grande intensidade no
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Seben, Junior Getulio de Freitas. "Resistência tênsil relacionada com atributos de um Latossolo sob sistema de semeadura direta /." Jaboticabal : [s.n.], 2010. http://hdl.handle.net/11449/88305.

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Resumo: A avaliação da estrutura do solo pode ser realizada por um conjunto de atributos específicos e suas inter-relações. Assim, os objetivos foram: i) quantificar a resistência tênsil de agregados (RT), friabilidade do solo (FR), e teor de carbono (C), diâmetro médio ponderado (DMP), índice de estabilidade de agregados (IEA) e a densidade do solo (DS) e verificar a influência dos demais atributos na RT e FR; ii) avaliar a influência do formato dos agregados na RT e FR. O delineamento foi em blocos casualizados, em faixas, com três repetições. Os tratamentos foram constituídos de três seqüên
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Bertoncelli, Patricia. "Inoculação, manejo do nitrogênio e decomposição dos resíduos vegetais de cereais de inverno na produção de grãos e silagem de milho." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/5113.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The quest for greater productivity and concern for sustainability, it makes the constant search for alternatives that obtain high productivity sustainably and nutrient cycling, biological nitrogen fixation and proper N fertilization some of these alternatives. In order to validate these alternatives aim with this work was to verify the influence of inoculation and nitrogen management in winter cereals, rates of decomposition of plant residues and its influence on the yield of grain and corn silage. The work consists of three chap
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Zhang, Shulan. "Soil hydraulic properties and water balance under various soil management regimes on the Loess Plateau, China /." Umeå : Dept. of Forest Ecology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005126.pdf.

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Kühlsen, Nils. "Empfehlungen von Winterweizensorten im Organischen Landbau über die Kleberproteinfraktionen und deren Einfluß auf die Backqualität." Bonn : Institut für Lebensmittelwissenschaft und Lebensmittelchemie, der Rheinischen Friedrich-Wilhelms-Universität, 2001. http://hss.ulb.uni-bonn.de:90/ulb_bonn/diss_online/landw_fak/2001/kuehlsen_nils/0198.pdf.

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Silva, Denis Augusto da. "EFEITO DE SUCESSÕES DE CULTURAS NA QUALIDADE DO SOLO EM UM SISTEMA PLANTIO DIRETO." UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, 2007. http://tede.ufgd.edu.br:8080/tede/handle/tede/132.

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Made available in DSpace on 2016-02-26T12:59:45Z (GMT). No. of bitstreams: 1 DenisAugustoSilva.pdf: 537885 bytes, checksum: 3ebbc55aaae7de28c15067a8aac8d9e7 (MD5) Previous issue date: 2007-11-29<br>Soil physical degradation, like compaction, reduces water movement and root development. Soil structure is considered one of most importance to agriculture, because other fundamental properties are closed related to it in soil-plant relationship. The objective of this study was to evaluate the effect of crop sequences on physical attributes of soil. The research was realized in 2004/05 and 2005/06
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Fornari, Mayara Regina. "Solos com diferentes sistemas de manejo e rotação de culturas em longo prazo: flutuações nas frações de fósforo." Universidade Federal de Santa Maria, 2017. http://repositorio.ufsm.br/handle/1/11557.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>An exploration for economical and sustainable alternatives, to maximize the use of phosphorus present in soil has emphasized against the decline in phosphate fertilizer production reserves. Different physical and chemical characteristics of the soil can be affected by soil preparation and planting of different crops in crop rotation system. However, their effects on soil phosphorus dynamics are not fully clarified, especially in highly weathered regions such as southern Brazil.The objective of this work was to evaluate the
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Gubiani, Elci. "Estoque de carbono e nitrogênio em solo sob sistemas de manejo e culturas de inverno." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/5616.

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Soil organic matter (SOM) constitutes the largest reservoir of carbon (C) and nitrogen (N) of the earth's surface. In agricultural soils, the organic fraction is of great importance in maintaining soil quality, while contributing a small fraction. Thus, the adoption of soil management practices and cover crops are important to promote th e C and N accumulation in the soil and consequently improve its quality. The no - tillage system (NT ) as conservation practice improves the soil structure, water infiltration and increases the contribution of C and N in the soil by depo
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Munda, Bruce, Tim C. Knowles, Art Meen, Vic Wakimoto, and Bill Worthy. "Winter Forage Cover Crop Trials." College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/208283.

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Several crops were evaluated at Worthy farms, near Marana, AZ, Wakimoto farms, Mohave Valley, near Bullhead City, AZ, and the Tucson Plant Materials Center for use as a winter cover crop following cotton with potential to reduce wind erosion and produce one to two hay cuttings. Hairy vetch (Vicia villosa), 'Lana' woolypod vetch (Vicia villosa ssp. varia), 'Papago' pea (Pisum sativum), and 'Biomaster' pea (Pisum sativum) were sown at the Tucson Plant Materials Center. Species sown at Worthy farm were: Papago pea, Lana vetch, and Biomaster pea. Species sown at Wakimoto farm were: Biomaster pea,
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Madafiglio, Gregory Peter. "Population management of Raphanus raphanistrum L. (wild radish) by regulating seed production." Thesis, View thesis View thesis, 2002. http://handle.uws.edu.au:8081/1959.7/339.

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Raphanus raphanistrum L. (wild radish) is a widespread and economically problematic weed of winter crops including wheat (Triticum aestivum L.) in southern Australia. Management of the weed is achieved by a range of non-chemical and chemical techniques. Current management is failing to contain the weed, which is increasing in abundance and distribution. The characteristics of staggered recruitment, dormancy, rapid growth, competitive ability and high levels of seed production contribute to its persistence. The literature review concludes that weeds formed the basis for perpetuation of R. rapha
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Wang, Guangyao (Sam), William McCloskey, Mike Foster, and David Dierig. "Lesquerella: A Winter Oilseed Crop for the Southwest." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010. http://hdl.handle.net/10150/147025.

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4 pp.<br>Lesquerella (Lesquerella fendleri) is a member of the mustard family and is native to the southwestern United States and northern Mexico. The oil in lesquerella seeds has superior performance compared to castor, soybean, and rapeseed methyl esters in reducing wear and damage in fuel injected diesel engines. Lesquerella can also be used as an ingredient for a number of other bioproducts such as lubricants, motor oils, plastics, inks, and adhesives. The hydroxylated oil in lesquerella is similar to castor oil but does not contain the deadly poison ricin. Therefore, lesquerella is a s
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Murphy, Donal Patrick Lee. "Crop structure and crop productivity in winter barley, (Hordeum sativum)." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262202.

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Wiesehoff, Marcel. "Teilflächenspezifische Aussaat von Winterweizen /." Hohenheim : Universität Hohenheim, Institut für Agrartechnik, Verfahrenstechnik in der Pflanzenproduktion, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015489100&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Nolte, Kurt, Mike Ottman, Trent Teegerstrom, and Guangyao (Sam) Wang. "Minimum tillage for wheat following winter vegetables." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010. http://hdl.handle.net/10150/146999.

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4 pp.<br>Wheat Production on Lettuce Beds<br>In 2009, over 56,000 acres were planted to wheat in Arizona, all of which following either a lettuce or cotton crop. For wheat grown in the region, the conventional tillage sequence prior to planting can be tied to as many as seven field operations that consume valuable time, labor, and resources. In this study, our aim was to determine the effectiveness of reducing the number tillage (minimum till) operations in fields immediately following lettuce harvest. And demonstrate to Southwest wheat producers a means for conserving time, fuel, and resource
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Kermode, G. N. "Autumn control of broad-leaved weeds in winter barley." Thesis, Bangor University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381921.

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Jenkinson, Peter. "Epidemiology of Fusarium in winter wheat (Triticum aestivum L.)." Thesis, Open University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386201.

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