Diversification of rice (Oryza sativa) wheat (Triticum aestivum) system for improving soil fertility and productivity
DOI:
https://doi.org/10.59797/ija.v48i3.3065Keywords:
Diversification, Green manuring, Productivity, Rice wheat system, Soil fertility, Wheat equiva lent yieldAbstract
A field experiment was conducted during 1996 97 to 1999 2000 at Karnal, to evaluate the effect of 6 rice (Oryza sativa L.) based crop sequences on soil fertility and productivity. Maximum wheat equivalent yield was re corded by inclusion of potato (Solanum tuberosum L.) (197.1 200.3 qlha), followed by vegetable pea (Pisum sativum L.) (173.5 173.8 qlha) between rice and wheat (Trticum aestivum L. emend. Fiori Paol.) crops. These systems resulted in additional wheat equivalent yield of 48 71 qlha over the rice wheat system. Continuous incor poration of Sesbania aculeata as green manure increased organic carbon by 8.7%, available N by 12.1%, Olsen s P by 10.1 % and available K by 5.0% in soil compared to rice wheat sequence. Growing of vegetable pea and po tato between rice and wheat also increased organic carbon by 8.9 and 17.1%, available N by 6.3 and 8.3% qnd available P by 6.3 and 19.0%, respectively, compared to rice wheat system. Green manuring with Sesbania aculeata added 97 109 kg Nlha and enhanced the wheat equivalent yield in the rice wheat system. Electrical conductivity and pH of soil decreased due to the inclusion of vegetable rice, potato and green manure.References
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KHARUB ETAL. [Vol. 48, No. 3
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Govindakrishnan, P.M. and Lal. S.S. 1997. Effect of management practices on productivity of potato (Solanurn tuberosum)- wheat (Triticwn aestivum) crop sequence. Indian Journal of Agronomy 42 (2) :239-243.
Grubinger, V.P. 1992. Organic vegetable production and how it re- lated LISA. Horticultural Science 27 :759-760.
Kirchner, M.J., Wollum 11, G. and King, L.D. 1993. Soil microbial population and activities in reduced chemical input agroecosystem. Soil Science Society of America Journal
:1,289-1,295.
Kolar, J.S., Grewal, H.S. and Singh, B. 1993. Nitrogen substitution and high productivity of a rice-wheat cropping system through green manuring. Tropical Agricultural (Trinidad)
:301-304.
Lal, S.S. and Govindakrishnan, P.M. 2000. Potato in RiceIWheat Cropping Systems in Indo-Gangetic Plains of India. (In)
Intenatioml Conference on Managing Natural Resources for Sustaining Agricultural Production in 21st century held at New Delhi, pp. 14-18.
Mahapatra, B.S., Kumar, Ajay, Shukla, D.K. and Shukla, R.K. 2002. Summer legumes in relation to productivity and fertility in ricewheat cropping system. Paper Presented at the Intema-tional Agronomy Congress, held during 26-30 November 2002, New Delhi, India, vol. 1, pp. 155-56.
KHARUB ETAL. [Vol. 48, No. 3
Meelu, OP.,Singh, B. and Singh,Y. 1994. Effect of green manur- ing and crop residue recycling on N economy, organic matter and physical properties ofsoil in rice-wheat cropping sys- tem. (In) Proceedings of Symposium on Sustainability of Rice-wheat system in India, held during 7-8 May 1994 at Regional Station, Kamal, pp. 15-24.
Nambiar, K.K.M. and Abrol, LP. 1995. Long-term fertiliser expefi- ments in India. An Overview. Fertiliser News 34 :11-20.
Padhi, A.K. 1993. Productivity and economics of rice (Oryza sativa) based cropping sequence. Indian Journal of Agronomy
(3) :351-6.
Paikaray, R.L., Mahapatra, B.S. and Sharma, G.L. 2001. Integrated- nitrogen management in ricewheat cropping system. Indian Journal ofAgmnomy 46 (4) :592400.
Rattan, R.K. and Singh, A.K. 1997. Role of balanced fertilisation in rice-wheat cropping system. Fertiliser News 42 (4) :79-97.'
Yadav, R.L., Yadav, D.S., Singh, R.M. and Kumar, A. 1998. Long2 term effects of inorganic fertilizer inputs and crop productiv- ity in rice-wheat cropping system. Nutrient Cycling in Agroecosystems 51 : 193-200.
