• AETDS, Uttarakhand, India.
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Agricultural & Environmental Technology Development Society

(AETDS), U.S. NAGAR, UTTARAKHAND, INDIA.

Abstract

International Journal of Agricultural and Applied Sciences, June 2021, 2(1):159-162

ISSN: 2582-8053

https://doi.org/10.52804/ijaas2021.2121

Research Article

 

Efficiency of post-emergence herbicide for enhancing yield attributes, yield, and economics of hybrid maize (Zea mays L.)

 

Noor Mohammad Kakar1, Sayed Yuonus Amini.2 and Mohibullah Samim3

1ANASTU, Kandahar, Afghanistan

2ICAR-IIMR, Pusa Campus, New Delhi

3Division of Agronomy, IARI, Pusa Campus, New Delhi

4IASRI, Pusa Campus, New Delhi

Corresponding author e-mail: noormohammad.kakar@yahoo.com

(Received: 25/11/2020; Revised: 10/04/2021; Accepted: 05/06/2021)

 

ABSTRACT

An experiment was conducted at the research farm of National Agricultural Science and Technology University (ANASTU), Kandahar, Afghanistan in a randomized complete block (RCBD) during the summer season of 2017 to evaluate the effect of post-emergence herbicides in maize. The experiment consisted of ten treatments and was replicated thrice. Among the weed control treatments, sequential application of atrazine @ 1.5 kg/ha pre-emergence followed by tembotrione 120 g/ha as PoE at 25 DAS recorded significantly higher grain row-1 (36.18), the number of grain cob-1 (502.48), and Grain weight cob-1 (137.63 g). Significantly higher grain and stover yield (6.7 and 11.6 t ha-1) were recorded in weed-free check plot which is on par with (T10) atrazine @ 1.5 kg/ha pre-emergence fb tembotrione 120 g /ha PoE at 25 DAS (6.5 and 11.4 t ha-1) and (T9) pendimethalin (1000 ml/ha) pre-emergence fb atrazine (750 g/ha) + 2,4-D Amine 0.4 kg /ha at 25 DAS as PoE (6.2 and 11.0 t ha-1). The benefit-cost ratio was higher (1.57) in the sequential application of Atrazine 1.5 kg/ha fb 2,4-D Amine 0.4 kg/ha at 25 DAS as PoE, which was on par with Pendimethalin (1000 ml/ha) pre-emergence fb Atrazine (750 g/ha) + 2,4-D Amine 0.4 kg/ha at 25 DAS as PoE and (T7) Atrazine @ 1.5 kg/ha pre-emergence fb Halosulfuron67 g/ha 25 DAS.

Keywords: B: C ratio, Economics, Harvest Index, Post-emergence herbicide, weed management, yield.