Effect of pre-emergence herbicide mixtures on cowpea (Vigna unguiculata (L.) Walp) at Samaru, in northern Nigeria

被引:3
|
作者
Ishaya, D. B. [1 ]
Tunku, P. [2 ]
Yahaya, M. S. [3 ]
机构
[1] Ahmadu Bello Univ, Fac Agr, Dept Agron, Zaria, Nigeria
[2] Ahmadu Bello Univ, Coll Agr, Kabba, Kogi State, Nigeria
[3] Kaduna Polytech, Dept Agr Engn, Kaduna, Nigeria
关键词
pre-emergence; herbicide mixtures; cowpea;
D O I
10.1016/j.cropro.2007.11.021
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Field experiments were conducted in the wet seasons of 2005 and 2006 to evaluate the effect of pre-emergence application of herbicides on cowpea. A mixture of metolachlor and prometryn at 1.25 + 0.08 kg a.i./ha was consistent in better growth and seed yield. However, application of mixtures of metolachlor and terbutryn at 0.99 + 0.50 kg a.i./ha and ametryn and terbutryn at 1.60 + 1.00 kg a.i./ha gave lower vigour score of the crop, higher crop injury, smaller canopy spread and lower seed yield. It can be concluded that the metolachlor and prometryn mixture gave good selective weed control and can be used instead of hand weeding in cowpea in northern Nigeria. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1105 / 1109
页数:5
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