أعرض تسجيلة المادة بشكل مبسط

dc.creator MARENCO RICARDO ANTONIO
dc.creator LUSTOSA DENISE CASTRO
dc.date 2000
dc.date.accessioned 2013-05-30T01:57:41Z
dc.date.available 2013-05-30T01:57:41Z
dc.date.issued 2013-05-30
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000001000014
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=0100204X&date=2000&volume=35&issue=10&spage=2025
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/3451
dc.description Soil solarization is a technique used for weed and plant disease control in regions with high levels of solar radiation. The effect of solarization (0, 3, 6, and 9 weeks) upon weed populations, carrot (Daucus carota L. cv. Brasília) yield and nematode infestation in carrot roots was studied in São Luís (2º35' S; 44º10' W), MA, Brazil, using transparent polyethylene films (100 and 150 mm of thickness). The maximum temperature at 5 cm of depth was about 10ºC warmer in solarized soil than in control plots. In the study 20 weed types were recorded. Solarization reduced weed biomass and density in about 50% of weed species, including Cyperus spp., Chamaecrista nictans var. paraguariensis (Chod & Hassl.) Irwin & Barneby, Marsypianthes chamaedrys (Vahl) O. Kuntze, Mitracarpus sp., Mollugo verticillata L., Sebastiania corniculata M. Arg., and Spigelia anthelmia L. Approximately 40% of species in the weed flora were not affected by soil mulching. Furthermore, seed germination of Commelina benghalensis L. was increased by soil solarization. Marketable yield of carrots was greater in solarized soil than in the unsolarized one. It was concluded that solarization for nine weeks increases carrot yield and is effective for controlling more than half of the weed species recorded. Mulching was not effective for controlling root-knot nematodes in carrot.
dc.publisher Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
dc.source Pesquisa Agropecuária Brasileira
dc.subject Commelina benghalensis
dc.subject Cyperus
dc.subject organic farming
dc.subject soil heating
dc.subject mulching
dc.subject plastic film covers
dc.subject soil desinfection
dc.subject nematode controls
dc.subject sandy soil
dc.title Soil solarization for weed control in carrot


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أعرض تسجيلة المادة بشكل مبسط