USING ACID-WASHED SHREDDED WASTE-TIRE RUBBER IN SOILLESS MEDIA FOR TOMATO PRODUCTION

摘要

‘Cerasiforne’ tomato (Lycopersicon esculentum Mill.) was grown in soilless potting media contained different substrate formulas including 25:25:50 volume ratio of acid-washed (AWR) or non-washed shredded rubber (NAWR):vermiculite or zeolite:perlite. Additionally, plants were grown in a peat:perlite substrate. Plants grown in media containing AWR had greater root and shoot dry weight and fruit production than those grown in the NAWR media or the peat:perlite substrate. Fruit zinc (Zn) and iron (Fe) concentration of plants grown in AWR-containing media was significantly lower than those grown in NAWR-containing media. Plants grown in the presence of waste rubber accumulated greater Zn in their shoots compared to those grown in the peat: perlite media. Acid washing of rubber significantly reduced shoot Zn concentration. Shredded waste rubber might be used as a component of container media in production of hydroponically-grown tomato; however, acid-washing of rubber is required to prevent potential Zn toxicity for plant.View full textDownload full textKeywords Lycopersicon esculentum , soilless culture, substrate, tire rubberRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/01904167.2012.684126