Influence of Chemical and Integrated Weed Management on Yield and Yield Components of Grain Maize and Weed Population in Northern ‎Khuzestan

Feyzolahi, Mohsen; Monsefi, Ali; Rahnama, Afrasyab; Farzaneh, Masomeh

doi:10.22059/jci.2021.319359.2522

Document Type : Research Paper

Authors

¹ Former M.Sc. Student, Plant Production Engineering and Genetics Department, Faculty of Agriculture, ‎Shahid Chamran University of Ahvaz, Ahvaz, Iran.

² Assistant Professor, Plant Production Engineering and Genetics Department, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

³ Associate Professor, Plant Production Engineering and Genetics Department. Faculty of Agriculture. Shahid Chamran University of Ahvaz, Ahvaz, Iran.

https://doi.org/10.22059/jci.2021.319359.2522

Abstract

In order to investigate the effects of chemical and integrated weed management on yield and yield components of grain maize and weed population, the study has been conducted as a randomized complete block design with three replications in 2018-19 in Shavar Research Center in Shavar region of Shousha city. Treatments include unweeded (control), hand weeding, 1.5 liters of atrazine, 1 liter of atrazine + straw mulch, 175 g of ultima, 150 g of ultima + straw mulch, 1.5 liter 2,4-D + MCPA, 1 liter 2,4-D + MCPA + straw mulch, 1.5 liters cruise, and 1 liter of cruise + straw mulch. Results show that the highest grain yield has been obtained in hand weeding treatment as well as 1 liter of cruise + straw mulch by 14.4 and 13.2 t ha^-1, respectively. The highest biological yield is recorded in hand weeding treatment (31.5 t ha^-1). In case of harvest index, 1.5 liters of cruise show the highest value (55.7%), followed by 1.5 liters of 2,4-D + MCPA and 1.5 liters of atrazine by 53.6% and 47.7%, respectively. In terms of weed population dynamics, hand weeding, and 1 liter of cruise + straw mulch cause the greatest decrease in weed population and dry weight which reduce crop competition and increase productivity. In general, based on the results, the adoption of integrated approaches (chemical + cultural + mechanical) can make a significant contribution to increasing corn yield and reducing environmental pollution.

Keywords

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Journal of Crops Improvement

Influence of Chemical and Integrated Weed Management on Yield and Yield Components of Grain Maize and Weed Population in Northern ‎Khuzestan

References

References

Volume 24, Issue 2
June 2022
Pages 423-435

Influence of Chemical and Integrated Weed Management on Yield and Yield Components of Grain Maize and Weed Population in Northern ‎Khuzestan

References

References

Volume 24, Issue 2June 2022Pages 423-435

Volume 24, Issue 2
June 2022
Pages 423-435