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Bhullar, M.S.
- Effect of Planting Methods and Weed Control on Productivity of Japanese Mint (mentha Arvensis L.)
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Authors
Affiliations
1 Department of Agronomy, Punjab Agricultural University, Ludhiana-141 004, IN
1 Department of Agronomy, Punjab Agricultural University, Ludhiana-141 004, IN
Source
Indian Journal of Agricultural Research, Vol 47, No 3 (2013), Pagination: 243 - 247Abstract
Effect of planting methods and weed control on productivity and oil quality of Japanese mint (Mentha arvensis L.) were evaluated in a field trial at Punjab Agricultural University, Ludhiana, India, during 2009 and 2010. Three planting methods (flat, bed and ridge planting) and six weed control treatments (oxyfluorfen at 0.20 kg/ha was applied as pre-emergence, post-emergence at 10, 15 and 20 days after planting; two hand hoeings and unweeded control) were evaluated. Planting methods did not influence weed dynamics and Japanese mint herb yield. Oxyflourfen as preemergence recorded the lowest density and dry matter of grass and broadleaf weeds and gave the highest Japanese mint herb yield during both the years. Oxyflourfen applied at 10 days was at par to its pre-emergence application with respect to weed control and Japanese mint herb yield. Further delay in oxyflourfen application recorded poor weed control and herb yield was significantly reduced. Mint oil and menthol content did not vary among planting methods and weed control treatments.Keywords
Bed Planting Methods, Flat Planting Methods, Herbicide, Japanese Mint, Ridge Planting Methods
References
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- Kaur, J. (2001). Effect of planting methods and row spacings on yield and quality of Japanese mint (Mentha arvensis L.). M.Sc Thesis, Punjab Agricultural University. Ludhiana, India.
- Singh, Surjit.; Walia, U. S. and Nayyar, Shelly. (2009). Performance of oxyfluorfen (Goal 23.5 EC) for the control of weeds in Japnese Mint (Mentha arvensis). Proc. National Workshop on Spices and Aromatic plants, February 4-5.
- Directorate of Arecanut and spices Development, Govt. Of India, Ministry of Agriculture, Department of Agriculture and Cooperation Calicut (Kerala). Org. by Department of Agronomy, PAU, Ludhiana.
- Walia, U. S.; Brar, L. S. and Singh, B. (2006). Recommendations for weed control in field crops. Research Bulletin. Department of Agronomy, PAU, Ludhiana. pp.1-32.
- Nutrient Uptake by Direct Seeded Rice and Associated Weeds as Influenced by Sowing Date, Variety and Weed Control
Abstract Views :7676 |
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Authors
Affiliations
1 Department of Agronomy, Punjab Agriculture University, Ludhiana - 141 004, IN
1 Department of Agronomy, Punjab Agriculture University, Ludhiana - 141 004, IN
Source
Indian Journal of Agricultural Research, Vol 47, No 4 (2013), Pagination: 353-358Abstract
Nutrient uptake by direct seeded rice and associated weeds was studied in a field experiment during kharif 2008. Twenty four treatment combinations viz. six sowing dates (direct seeding on 0 (June 5), 7, 14, 21 and 28 days after nursery sowing (DANS); transplanting 28 DANS); two varieties (short duration PR 115 and medium duration PAU 201) and two weed control treatments (3 hand weedings at 20, 40, 60 days and pendimethalin 0.75 kg ha-1 pre-emergence followed by bispyribacsodium 0.030 kg ha-1 as post emergence) were evaluated in a split plot design with three replications. Among sowing dates and establishment methods, rice grains in manual transplanting utilized significantly higher amount of nitrogen and phosphorus than all the direct seeding dates 0, 7, 14, 21 and 28 DANS; potassium uptake was at par to direct seeding on 0 DANS. The rice straw utilized the highest amount of potassium in transplanted treatment and was at par to direct seeding 0 DANS; nitrogen and phosphorous uptake did not show any specific trend. The nitrogen and potassium removal by the weeds was the lowest in transplanted check which was at par to direct seeding on 0-7 DANS and for phosphorous removal it was at par to 0-14 DANS. Nitrogen and potassium uptake by rice grain and straw did not vary among varieties, however, phosphorous uptake by grain and straw was significantly higher in case of PR 115 than PAU 201; weeds also removed significantly higher amount of potassium in PR 115 as compared to PAU 201. Among weed control treatments, rice grains in the three hand weeding treatment utilized significantly higher amount of nitrogen as compared to sequential application of herbicides; nitrogen uptake by straw was non-significant. The weeds in herbicidal plot removed significantly higher amount of nitrogen, phosphorous and potassium as compared to three hand weedings. The nutrient uptake by crop was directly related to crop dry matter accumulation and grain yield while nutrient removal by weeds was directly related to the weed dry matter accumulation under different treatments.Keywords
Nitrogen, Phosphorous, Potassium, Rice, Variety, WeedsReferences
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