Weed Management in Sorghum

Mishra, J. S.; Talwar, H. S.

doi:10.1007/978-981-15-8249-3_25

Cited by 2 publications

(1 citation statement)

References 66 publications

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“…This low productivity was ascribed to its rainfed cultivation (only 0.4% of total area is irrigated in 2015-16, DoES, 2019 and associated intense biotic and abiotic pressures. Weeds are the most notable biotic stress (Mishra and Talwar, 2020), since they deplete the valuable soil moisture (Dalley et al, 2006) and nutrients (Mishra et al, 2014) that would otherwise be used for crop production. AICRP weed management trials (39 number) spread across 3 sorghum-growing states; Karnataka, Maharashtra and Madhya Pradesh indicated a 25.1% weed-associated yield losses (Gharde et al, 2018).…”

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Efficacy of p-hydroxy-phenyl-pyruvate dioxygenase (HPPD) enzyme-inhibitive tembotrione and topramezone herbicides for weed-management in rainy season grain sorghum (Sorghum bicolor)

ARVIND VERMA,

B. GANGAIAH,

V.A. TONAPI

2023

IJA

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A field experiment was conducted during the rainy season (kharif) of 2019 and 2020 at Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, to ascertain the weed-management efficacy of postemergence (PoE) tembotrione and topramezone at 25 days after sowing following pre-emergence (PE) atrazine in the kharif grain sorghum [Sorghum bicolor (L.) Moench]. Eight treatments (6 herbicidal along with weed-free and weedy check) were evaluated in randomized block design (RBD) with 3 replications. Results showed that, uncontrolled weeds have inflicted a grain, stover yield and net income penalty of 63.7, 55.5 and 69% over weed-free check (3.47, 12.34 t/ha and `135,216). Pre-emergence (PE) application of atrazine @ 0.5 kg a.i./ha was found to be the most promising herbicide in terms of benefit: cost ratio (5.76) despite having 12.4, 6.2, and 6.71% lower grain, stover and net income than weed-free treatment (5.03). Both PE and PoE application of atrazine did not bring any yield and profit gains over its PE application. Topramezone and tembotrione (PoE) controlled weeds as effective as weed-free treatment and their impacts persisted up to crop maturity. However, on account of crop phytotoxicity that is dependent on dose (2.83–5.17) severe yield losses (60 and 51.9% grain and stover) were recorded. Both tembotrione and topramezone at their higher dose (0.0242 and 0.0363 kg a.i./ha) resulted in at par grain yield (1.18 t/ha) as weedy check (1.26 t/ha).

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confidence: 99%

Efficacy of p-hydroxy-phenyl-pyruvate dioxygenase (HPPD) enzyme-inhibitive tembotrione and topramezone herbicides for weed-management in rainy season grain sorghum (Sorghum bicolor)

ARVIND VERMA,

B. GANGAIAH,

V.A. TONAPI

2023

IJA

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An Integrated Approach to Weed Control in Sorghum and Pearl Millet

Kumar,

Kaur,

Robin

2024

Handbook of Integrated Weed Management for Major Field Crops

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Sorghum and pearl millet are prominent cereal crops extensively cultivated in India. These plant species are intentionally cultivated by agriculturalists with constrained financial means who reside in arid and semi-arid geographical areas. The presence of weeds significantly hinders the successful cultivation of these crops. The unregulated growth of undesirable plant species has been empirically documented to have a substantial negative impact on the agricultural output of sorghum and pearl millet, potentially resulting in a decline of approximately 30-40%. Therefore, this chapter elucidates the amalgamated approaches for weed management in the cultivation of sorghum and pearl millet, encompassing cultural, cropping, and chemical methods that are both economically viable and readily implementable for farmers residing in arid and semi-arid regions.

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Weed Management in Sorghum

Cited by 2 publications

References 66 publications

Efficacy of p-hydroxy-phenyl-pyruvate dioxygenase (HPPD) enzyme-inhibitive tembotrione and topramezone herbicides for weed-management in rainy season grain sorghum (Sorghum bicolor)

Efficacy of p-hydroxy-phenyl-pyruvate dioxygenase (HPPD) enzyme-inhibitive tembotrione and topramezone herbicides for weed-management in rainy season grain sorghum (Sorghum bicolor)

An Integrated Approach to Weed Control in Sorghum and Pearl Millet

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