Abstract
AbstractField trials were conducted in 2015 and 2016 cropping seasons to evaluate some herbicide mixtures and manual weed control method in the production of maize in the southern Guinea savanna of Nigeria. The experiment consisted of 10 treatments as follows: Metolachlor + atrazine at 1.0 + 2.0 kg a.i./ha, metolachlor + atrazine at 2.0 + 2.5 kg a.i./ha, metolachlor + atrazine at 3.0 + 3.0 kg a.i./ha, pendimethlin + atrazine at 1.0 + 2.0 kg a.i./ha, pendimethlin + atrazine at 2.0 + 2.5 kg a.i./ha, pendimethlin + atrazine at 3.0 + 3.0 kg a.i./ha, metolachlor + atrazine at 1.0 + 2.0 kg a.i./ha plus one supplementary hoe weeding (SHW) at 6 weeks after sowing (WAS) and pendimethlin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS, hand weeding at 3 and 6 WAS and a weedy check. These treatments were laid out in randomized complete block design with three replicates. Results showed that metolachlor + atrazine and pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduce...
Highlights
Maize (Zea mays L.) is the third most important cereal crop in the world after wheat and rice (MINFAL, 2003)
This increased to including Paspalum scrobiculatum, Setaria barbata, Hyptis suaveolens and Commelina benghalensis in the descending order as the most prominent at weeks after sowing (WAS) (Table 3)
At higher application rates of pendimethalin + atrazine, Paspalum scrobiculatum and Maniscus alternifolius were the most prominent and important weed species growing in maize plot at 6 WAS
Summary
Maize (Zea mays L.) is the third most important cereal crop in the world after wheat and rice (MINFAL, 2003). More of this crop is produced annually than any other grain and is the most important cereal crop in sub-Saharan Africa and Latin America (IITA, 2012). Maize provides staple food to large number of human population in the world. According to FAO (2011), 822.7 million metric tonnes of maize were produced worldwide in 2008. Out of this figure, Africa produced 53.2 million metric tonnes, while Nigeria produced 7.3 million metric tonnes in 2009
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