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ISSN 2063-5346
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Influence of planting patterns and weed control methods in direct seeded rice (DSR) on weed density and weed drymatter

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Burra Shyamsunder1 ,Dr Ujagar Singh Walia1*,Thulisekari Prasanna2, Guntimadugu Santhosh Kumar Raju3,Prudhvi Nawabpet4
» doi: : 10.48047/ecb/2023.12.12.176

Abstract

An field experiment was conducted on ‘Influence of planting patterns and weed control methods in direct seeded rice on weed density and weed drymatter" during kharif 2022 on the experimental farm of School of Agriculture, Lovely Professional University, Phagwara (Punjab). The treatments consisted of four methods of planting patterns (M1-Flat sowing, M2- two rows /bed ,M3-three rows/bed,and M4-two rows/bed and 1 row in furrow ) in main plots and four weed control treatments (T1-pendimethalin + bispyribac,T2-pendimethalin + metsulfuron,T3-weed free upto harvest and T4-unweeded(control) were kept in subplots. The experimental field was clay loam in texture with normal pH and EC ,low in organic carbon and available nitrogen,medium in phosphorus and potassium.Among the planting patterns,the highest weed density and drymatter were observed in flat sowing(M1)in all the intervals at which the data was recorded.Among the weed control treatments,the highest weed density and weed drymatter was found in unweeded treatment (T4) in all the intervals i.e.30,60 and 90 DAS .The lowest weed count was observed in two rows per bed (M2) planting pattern when it was applied with pendimethalin+bispyribac (T1) at all the intervals i.e 30 ,60 and 90 DAS followed by pendimethalin + metsulfuron (T2).

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