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Details of the paper

Title
The occurrence and control strategy of Malachium aquaticum in transplanted rape fields in Hubei Province
Author
Xue Liu, Xinping Wu, Wenda Zhu, Shouhui Wei, Chaoxian Zhang
Keywords
Malachium aquaticum; occurrence; population dynamics; rape; control strategy
Journal
ACTA PHYTOPHYLACICA SINICA
Year,Vol,No
2006,33(1)
Pages
104-108
Abstract
Malachium aquaticum (L.) Fries was a worst weed in rape fields. The emergence and population dynamics of M. aquaticum in transplanted rape fields was studied by survey of permanent quadrats and random quadrats, and field trials for herbicide screening were further conducted to develop the control strategy. The results showed that M. aquaticum reached the peak of emergence 3 weeks after rape transplanted, and the instant seedling amount was 117.0 plant/m2, accounted for 12.71% of its total seedling number (539.0 plant/m2). In mid December, the population of M. aquaticum reached the highest density of 407.8 plant/m2 and the cumulative emergence number was 82.19% of its total. This period was the critical time for control of M. aquaticum. Both foliage applied herbicides benazolin-ethyl and soil applied herbicides isoproturon had good control effects on M. aquaticum, the efficacy maintained over 95% 60 days after treatment and they had no side effects on the plant height, pod number and oilseed yield.
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