**Author details**

*Maize - Production and Use*

on the environment.

**Conflicts of interest**

**Disclaimer**

the text.

The authors declare no conflicts of interest.

is considered one of the most important prerequisites in CA-based crop cultivation systems including maize to ensure high crop yield. High weed pressure in association with maize, increase to lower the economic returns and, in extreme cases complete failure of the crop. Hence, judicious weed management in CA system is a critical factor for securing and sustaining food security. While, number of repetitive tillage operations increase the cost of cultivation, fuel consumption and delays planting in two ways by repetitive tillage operations followed by manual sowing. After post seeding of maize, farmers are facing major challenges for weed manage-

Since the traditional weed management in maize systems after 30–35 days after seeding; generally, farmers cut the weeds with hand weeding which further consumed more labour or sometimes usually reluctant to control weed in the maize field. However, sometimes they weeded by hand, which proves uneconomical due to be increasing labour wages as well as lack of labours due to migrating from the villages to urban areas for better livelihood. The hand labour based weeding in many developing countries consumes up to half of the total labour demand. Therefore, CA-based new agronomic management practices may be advocated to overcome the above challenges. To address the weed management problems in CA-based maize production under no-till systems with different chemical weed control is a potential means for controlling weeds and more economical compared to hand weeding. Now some herbicides are available in the market for controlling weeds since these should be needed to validate for controlling weeds as well as to know their residual effect

We hereby declare that the book chapter does not have any material which has been accepted to publish any journal or publisher, and also has no copy of any material in previously published, except where due permission and reference is made in

ment due to lack of pre-sowing, pre- and post-emergence herbicides.

**124**

Akbar Hossain1 \*, Mst. Tanjina Islam<sup>2</sup> , Md. Shohidul Islam<sup>2</sup> , Nurislam2 , Sharif Ahmed3 , Khokan Kumer Sarker4 and Mahesh Kumar Gathala<sup>5</sup>

1 Bangladesh Wheat and Maize Research Institute (BWMRI), Dinajpur, Bangladesh

2 Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Bangladesh

3 Bangladesh Office, International Rice Research Institute, Dhaka, Bangladesh

4 Irrigation and Water Management Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

5 International Maize and Wheat Improvement Center (CIMMYT), Dhaka, Bangladesh

\*Address all correspondence to: akbarhossainwrc@gmail.com and tanjimar2003@yahoo.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
