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Indian Journal of Weed Science
Year : 1976, Volume : 8, Issue : 2
First page : ( 95) Last page : ( 100)
Print ISSN : 0253-8040. Online ISSN : 0974-8164.

Weed Management in Rainfed Sorghum

Reddy G. Subba, Venkateswarlu J., Dryden R. D.*

*Dryland Project, Amberpet, Hyderabad (India)

Abstract

The effect of year-round tillage on the yield of sorghum (Sorghum bicolor L.) with and without the use of herbicides and normal interculture operations have been evaluated over normal tilling practices in the semi-arid red soil region of Hyderabad (Tndia). The results indicated that year-round tillage lead to increased sorghum production. There was no yield difference between atrazine and isoproturon applied either alone or in combi-nation. However, atrazine or isoproturon applied in combination with interculture (two blade harrowings) led to increased production.

In another experiment, band placement of atrazine (graded levels) was compared with whole plot application. The result indicated that band placement of 0.5 kg/ha of atrazine + two blade harrowings at 3 and 7 weeks after planting was as good as 1 kg/ha of atrazine applied on the whole plot + one interculture.

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