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Tamil Nadu Agricultural University Coimbatore, INDIA

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IMPACT OF NUTRIENT AND WEED MANAGEMENT ON WEED DYNAMICS IN MUSTARD (BRASSICA JUNCEA L. CZERN AND COSS) UNDER DRYLAND CONDITIONS

Ishwar Singh-, S.K. Agarwal

Affiliations

¹Department of Agronomy, CCS Haryana Agricultural University, Hisar - 125 001,India

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Cite article:- Singh- Ishwar, Agarwal S.K. (2025). IMPACT OF NUTRIENT AND WEED MANAGEMENT ON WEED DYNAMICS IN MUSTARD (BRASSICA JUNCEA L. CZERN AND COSS) UNDER DRYLAND CONDITIONS. Indian Journal of Agricultural Research. 38(2): 87 - 93. doi: .

ABSTRACT

Weed dynamics were studied in mustard (Brassica juncea L. Czern and Coss) variety RH-8812 (Laxmi) under dry/and conditions. Thirty two treatment combinations were laid out in ‘Split Plot Design’, keeping weed control levels in main plots and nutrient levels in sub plots. The important weed species recorded in the descending order of intensity were: Chenopodium sp, Convolvulus arvensis and Asphodilus tenuifolius, whereas, Euphorbia hirta appeared at later stages of crop growth. Among weed control methods, two hand hoeings registered maximum weed control efficiency. Application of trifluralin at 1.0 kg a.i.ha−1 (PPI) was equally effective in controlling weeds under well conserved moisture after a high rainfall in 1994–95 as compared to 1993–94. The application of 40 kg N + 20 kg P2O5 recorded significantly lower weed population and dry matter accumulation by weeds over control at harvest of the crop due to suppression effect of better crop under higher fertility. The application of FYM at either rate increased the population of all the weed speCies and dry matter accumulation by weeds over chemical fertilizers and control during both the crop seasons.

KEYWORDS

REFERENCES

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