https://www.socictopen.socict.org/files/original/cd6d8f93c8ef2d70e74d30edd0f34b09.pdf 00077d2eb2d623e7df1f26a131254985 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource The use of sunn hemp as green manure intercropped with taro Utilização de crotalária como adubo-verde em consórcio com taro Creator An entity primarily responsible for making the resource Dejair Lopes de Almeida, Fábio Luiz de Oliveira, Segundo Urquiaga, José Guilherme M Guerra, Raul de LD Ribeiro, Edmilson Evangelista da Silva, José Antônio A Espindola Description An account of the resource An experiment was carried out in Magé, Rio de Janeiro State, Brazil, to evaluate the performance of taro (Colocasia esculenta) intercropped with sunn hemp (Crotalaria juncea), used as green manure. A randomized blocks design with four replicates was used and the soil of the field plots was classified as Haplic Gleysol. Treatments consisted of taro (1) intercropped with unpruned sunn hemp, (2) intercropped with sunn hemp cut at soil level, (3) intercropped with sunn hemp pruned at its mid-height, and (4) in monoculture. The taro was planted in double rows spaced by 1.0 m. The planting furrows had a space of 0.5 m, with rhizomes placed at every 3.0 m. The experimental plot consisted of four 3.0 m rows and the useful area corresponded to the five central plants in each of the two central rows. The sunn hemp was sown in parallel lines in the spaces between the taro double rows, 120 days after planting the taro. When the sunn hemp was cut at soil level, an accumulation of 211 kg ha-1 of N was observed. Besides this, the sunn hemp's biomass promoted the cycling of an average 17 kg ha-1 of P, 85 kg ha-1 of K, 151 kg ha-1 of Ca, and 27 kg ha-1 of Mg. Worth mentioning, it represented also a deposition of 6.85 Mg ha-1 of dry substance. Even when pruned at its mid-height, the sunn hemp still provided 60% of nutrients relatively to the treatment in which it was cut at soil level. In addition to the nutrient supply, the use of taro intercropped with sunn hemp cut at soil level or pruned at mid-height represented efficient alternatives for controlling the spontaneous vegetation and for reducing taro leaf burning by solar radiation, without compromising the yield of taro. In all intercropping systems, taro plants had a larger leaf area and were taller than plants in monoculture.O experimento foi desenvolvido no município de Magé, Região Metropolitana do estado do Rio de Janeiro, para avaliar a influência do manejo da crotalária (Crotalaria juncea), usada como adubo verde, na forma de consórcio, sobre o desempenho do taro. O solo da área experimental foi classificado como Gleissolo Háplico. O delineamento experimental foi blocos casualizados com quatro repetições. Os tratamentos consistiram de cultivo do taro (1) consorciado com crotalária sem cortes, (2) consorciado com crotalária roçada rente ao nível do solo, (3) consorciado com crotalária cortada à metade de sua altura e (4) em monocultivo. O taro foi plantado em fileiras duplas espaçadas de 1,0 m. Os sulcos de plantio tiveram espaçamento de 0,5 m, com os rizomas colocados a cada 3,0 m. A parcela experimental consistiu de quatro linhas de 3,0 m, adotando como área útil as cinco plantas centrais em cada uma das linhas do meio. A crotalária foi semeada em linhas paralelas, no espaço entre os sulcos, 120 dias após o plantio do taro. Quando a crotalaria foi cortada rente ao solo, houve um acúmulo de 211 kg ha-1 de N, além da reciclagem de, em média, 17 kg ha-1 de P, 85 kg ha-1 de K, 151 kg ha-1 de Ca e 27 kg ha-1 de Mg. Observou-se ainda a deposição de 6,85 Mg ha-1 de matéria seca. Mesmo quando cortada a meia altura, a crotalária ainda forneceu 60% de nutrientes em relação ao tratamento em que foi cortada rente ao solo. Além do fornecimento de nutrientes, a utilização do taro consorciado com crotalária, quando esta foi roçada ao nível do solo ou cortada à metade de sua altura, foi eficaz para controle da vegetação espontânea e para redução da incidência de queimaduras foliares causadas pela radiação solar, sem comprometer o rendimento do taro. Independente do manejo da crotalária, as plantas de taro apresentaram maior área foliar e foram mais altas quando cultivadas em consórcio do que em monocultivo. Date A point or period of time associated with an event in the lifecycle of the resource 2007 Subject The topic of the resource Agricultura orgânica, Colocasia esculenta, Crotalaria juncea, controle do mato, leaf area, leaf burning, organic farming, queimaduras foliares, weed control, área foliar Identifier An unambiguous reference to the resource within a given context 10.1590/S0102-05362007000400013 Source A related resource from which the described resource is derived Horticultura Brasileira Publisher An entity responsible for making the resource available Associação Brasileira de Olericultura Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Plant culture Relation A related resource <a href="http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0102-05362007000400013" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0102-05362007000400013</a>