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Nutrient Uptake by Direct Seeded Rice and Associated Weeds as Influenced by Sowing Date, Variety and Weed Control
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.
Nitrogen, Phosphorous, Potassium, Rice, Variety, Weeds
- Anonymous (2011a). Area and production of rice in India. http//www.indiastat.com.
- Anonymous (2011b). Package and Practices for Kharif crops of Punjab. Punjab Agricultural University, Ludhiana.
- Balasubramanian, V. and Hill, J. (2000). Direct wet seeding of rice in Asia: Emerging Issues and Strategic research needs for the 21st Century. Paper presented at the Annual Workshop of the directorate of rice research, Hyderabad, Andhra Pradesh.
- Dhyani, V.C.; Singh, V.P. and Singh, G. (2005). Response of rice to crop establishment and weed management. Indian J. Weed Sci. 37: 260-262.
- Dingkuhn, M.; Schnier, H.F. and Dorffling, K. (1990). Diurnal and development changes in canopy gas exchange in relation to growth in transplanted and direct seeded flooded rice. Aus. J. Pl. Phy. 17: 119-34.
- Gill, M.S.; Kumar, A. and Kumar, P. (2006). Growth and yield of rice (Oryza sativa L.) cultivars under various methods and time of sowing. Indian J. Agron. 51:123-27.
- Greenland, D.J. (1981). Recent progress in studies of soil structure and its relation to properties and management of paddy soil. In: Proc. Symp. on paddy soil. Institute of Soil Sci. Academic Sinica Nanjing, China. pp 42-58.
- Hira, G.S.; Jalota, S.K. and Arora, V.K. (2004). Efficient Management of Water Resources for Sustainable Cropping in Punjab. Research Bulletin, Department of Soil, Punjab Agricultural University, Ludhiana, Punjab, p. 20.
- Humphreys, E.; Kukal, S.S.; Christen, E.W.; Hira, G.S.; Balwinder-Singh, Sudhir-Yadav and Sharma, R.K. (2010).
- Halting the groundwater decline in north-west India which crop technologies will be winners? Adv. Agron. 109: 155–217. Kumar, J.; Singh, D.; Puniya, R. and Pandey, P.C. (2010). Effect of weed management practices on nutrient uptake by direct seeded rice. Oryza 47:291-94.
- Murty, P.S.S.; Ramesh, K.S.; Rao, G.V.H. and Naryayanan. (1992). Influence of nitrogen on grain filling potential and yield of rice (Oryza sativa L.) varieties. Indian J. Agron. 37: 157-58.
- Nageshwari, R. and Subhramaniayan, B. (2004). Influence of delayed basal dressing and split application of nitrogen in wet-seeded rice (Oryza sativa L.). Indian J. Agron. 49: 40-42.
- Nguyen, V.N. (2002). Rice production, consumption and nutrition. FAO STAT.
- Payman, G. and Singh, S. (2008). Effect of seed rate, spacing and herbicides use on weed management in direct seeded upland rice (Oryza sativa L.). Indian J. Weed Sci. 40: 11-15.
- Pillai, K.G. (1977). Integrated weed management in rice. Indian Fmg. 26 (12): 17-23.
- Rana, S.S.; Angiras, N.N. and Sharma, G.D. (2000). Effect of herbicides and interculture on nutrient uptake by puddled seeded rice and associated weeds. Indian J. Weed Sci. 32: 70-73.
- Reddy, S.N. and Narayana, P. (1984). Pattern of dry matter accumulation and N-uptake by rice as influenced by age of seedling and date of planting. Andhra. Agric. J. 32: 155-56.
- Schnier, H.F.; Dingkuhn, M.; De Datta. S.K.; Mengel, K. and Javellana, C. (1990). Nitrogen economy and canopy carbon-dioxide assimilation of tropical lowland rice. Agron. J. 82: 451-59.
- Singh, U.P. and Singh, R.P. (2001). Effect of weed management practices, fertility and cultivars on weed growth and yield of rainfed lowland, submergence-prone rice. Indian J. Weed Sci. 33: 124-26.
- Thakur, R.; Singh, R.K. and Chaudhary, R.L. (1995). Prabhat-very early maturing varieties released in Bihar. IRRN 20: 11.
- Walia, U.S. and Walia, M.K. (2007). Scope of direct seeded rice in India. Proc. Biennial Conference, ISWSon New and Emerging Issues in Weed Science.2-3 November 2007, HAU, Hissar, India, pp20.
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