Labor-Saving Weed Technologies for Lowland Rice Farmers in sub-Saharan Africa

被引：26

作者：

Rodenburg, Jonne ^{[1
]}

Saito, Kazuki ^{[2
]}

Irakiza, Runyambo ^{[1
]}

Makokha, Derek W. ^{[1
]}

Onyuka, Enos A. ^{[3
]}

Senthilkumar, Kalimuthu ^{[1
]}

机构：

[1] Africa Rice Ctr AfricaRice, Dar Es Salaam, Tanzania

[2] AfricaRice, Cotonou, Benin

[3] Humboldt Univ, Fac Plant Sci, D-10099 Berlin, Germany

来源：

WEED TECHNOLOGY | 2015年 / 29卷 / 04期

关键词：

Chemical weed control; hand weeding; irrigated lowland; mechanical weed control; small-scale farming; WEST-AFRICA; MANAGEMENT; YIELD; SYSTEMS; PRODUCTIVITY; CULTIVATION; VALLEY;

D O I：

10.1614/WT-D-15-00016.1

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Time requirements, weed control efficacy, and yield effects of three labor-saving weed technologies were tested against hand weeding during three seasons in 2012 and 2013. The technologies included two hand-operated mechanical weeders, the straight-spike and the twisted-spike floating weeder, and the PRE application of oxadiazon. The straight-spike floating weeder reduced weeding time by 32 to 49%, the twisted-spike floating weeder reduced weeding time by 32 to 56%, and the application of herbicide required 88 to 97% less time than hand weeding. Herbicide application provided the best weed control in two of the three seasons. No differences in weed control efficacy were observed between mechanical and hand weeding. Yield differences were only observed in season 3 with higher rice yields after PRE application of oxadiazon compared with other weed management treatments. Nomenclature: Oxadiazon; rice, Oryza sativa L.

引用

页码：751 / 757

页数：7

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