期刊
CROP PROTECTION
卷 20, 期 10, 页码 897-905出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0261-2194(01)00039-4
关键词
IPM; rice-fish farming; integrated agriculture; pesticides; Mekong Delta; aquaculture
类别
Pest management practices among rice and rice-fish farmers and their perception of problems related to pests and pesticides were surveyed in the Mekong Delta. A total number of 64 different pesticides were identified during the survey. Approximately 50% were insecticides, 25% were fungicides and 25% were herbicides. The main insecticides used were pyrethroids (42%) carbamates (23%) and cartap (19%). Non-IPM farmers used twice as many pesticides as IPM farmers. Their application frequency and the amount of active ingredient used were 2-3 times higher per crop, as compared to IPM farmers. During the last three years IPM farmers estimated that they had decreased the amount of pesticides used by approximately 65%, while non-IPM farmers said that they had increased the amount of pesticide used by 40%. Also, farmers growing fish in their rice fields used less pesticide than farmers growing only rice, as pesticides adversely affect cultures of fish. Taking a long-term perspective integrated rice-fish farming with IPM practices provides a sustainable alternative to intensive rice mono-cropping, both from an economic as well as an ecological point of view. (C) 2001 Elsevier Science Ltd. All rights reserved.
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