Society of Agricultural Scientists

S.V. Agricultural College, Tirupati

Acharya N.G. Ranga Agricultural University

Andhra Pradesh, India

Performance of Different Pre-emergence Herbicides on Weed Growth, Nutrient Uptake and Yield of Foxtail Millet

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  1. SRAVANI*, D. SUBRAMANYAM AND V. UMAMAHESH

Department of Agronomy, S.V. Agricultural College, ANGRAU, Tirupati

ABSTRACT

A field experiment was conducted during kharif 2020 at S.V. Agricultural College, Tirupati, Andhra Pradesh to identify the performance of different pre-emergence herbicides on weed growth, nutrient uptake and yield of foxtail millet. The present study has revealed that the lowest weed density and weed dry weight as well as higher WCE including nutrient uptake of foxtail millet were recorded with HW twice (W10) at 20 and 40 DAS followed by PE application of pretilachlor 500 g ha-1 fb intercultivation at 20 DAS (W4). Heavy weed infestation in unweeded check drained nutrient uptake by 45.67, 18.03 and 35 kg ha-1 of nitrogen, phosphorous and potassium, respectively. Hand weeding twice obtained higher grain yield, but benefit-cost ratio was lag behind the best weed management practice i.e., PE application pretilachlor 500 g ha-1 fb intercultivation at 20 DAS.

KEYWORDS: Broad-spectrum, Intercultivation, Nutrient uptake, Pre-emergence herbicide, Pretilachlor

 

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