期刊
CROP PROTECTION
卷 24, 期 3, 页码 285-287出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cropro.2004.08.008
关键词
nutsedge; low-density mulch; fumigant retention
类别
Two field trials were conducted to determine if reduced doses of methyl bromide plus chloropicrin (MBr + Pic) applied under two types of virtually impermeable films (VIF) could provide the same extent of Cyperus spp. control and pepper (Capsicum annuum L.) crop yield as the commercially used MBr + Pic dose with low-density mulch. Various treatments compared 98 and 196 kg MBr + Pic/ha under VIF versus 392 kg/ha of the fumigant with conventional polyethylene mulch. Results showed that there were no differences in Cyperus control and pepper yield with both reduced MBr + Pic and the commercially applied dose with low-density mulch. It appeared that the increased fumigant retention by the VIF gave the same weed control as the high MBr + Pic dose. (C) 2004 Elsevier Ltd. All rights reserved.
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