Weed Management Strategies in Summer Blackgram (Vigna mungo L. Hepper) Grown in Sandy Loam Soils of Western Nagaland

Author: Anjali Taku, Lanunola Tzudir, Shivani Kumari and Debika Nongmaithem

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Abstract

Field investigation was carried out during summer season at Medziphema (Nagaland) with a view to find the efficiency of different weed management interventions in managing the weeds of blackgram (Vigna mungo L. Hepper) grown during 2022 with seven treatment comprising of T1: Weedy check (Control), T2: Hand weeding at 20 and 40 DAS, T3: Cardboard mulching, T4: Paddy straw mulching @ 5 t ha-1, T5: Saw dust mulching @ 5 t ha-1, T6: Linseed stover mulching @ 5 t ha-1 and T7: Farmer’s practice in a randomized complete block design (RCBD) with three replications. The results revealed that hand weeding at 20 and 40 DAS gave maximum decrease in total weed population (5.58, 6.47 no. m-2) and weed dry weight (3.34, 4.41 g m-2). Hence, recorded the highest weed control efficiency (85.94%) which was at par with paddy straw mulching @ 5 t ha-1 at 40 DAS (83.84%). Highest growth and yield of summer blackgram was also observed under the same treatment which was at par with paddy straw mulching @ 5 t ha-1. The treatment with paddy straw mulching @ 5 t ha-1 gave the highest net return (`14863.55/ha) and B:C ratio (1.42) thus was found to be economically better and most effective for summer blackgram among all the treatments studied.

Keywords

Cardboard mulching, growth, linseed stover mulching, sawdust mulching, weeds, yield

Conclusion

The research findings of the study revealed that different Weed management strategies has potential impact on the growth and yield attributes of summer blackgram. Hand weeding at 20 and 40 DAS gave the highest seed yield, stover yield and harvest index and it was found to be statistically at par with paddy straw mulching while the economic analysis revealed that paddy straw mulching recorded the highest B:C ratio and this was found to be more economically viable than the rest of the treatments. Hence, this practice can be adopted by farmers of this region in blackgram for maximizing the benefits.

References

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How to cite this article

Anjali Taku, Lanunola Tzudir, Shivani Kumari and Debika Nongmaithem (2023). Weed Management Strategies in Summer Blackgram (Vigna mungo L. Hepper) Grown in Sandy Loam Soils of Western Nagaland. Biological Forum – An International Journal, 15(2): 719-723.