Effect of irrigation and nitrogen on yield, water use eficiency and nutrient balance in rice (Oryza sativa)- based cropping system
Indian Agricultural Research Journals
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Title |
Effect of irrigation and nitrogen on yield, water use eficiency and nutrient balance in rice (Oryza sativa)- based cropping system
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Creator |
Singh, R D
Sikka, A K Shivani, Shivani Rajan, K |
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Subject |
Rice-based cropping system; Rice-equivalent yield; Water-use efficiency; Cereal pulse
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Description |
An experiment was conducted at ICAR- RCER, Patna during 2001-02 to 2003-04 to study the effect of irrigation and nitrogen on yield, water-use efficiency and nutrient balance in rice ( Oryza sativa L.)- based cropping system. Application of optimum level of irrigation and nitrogen fertilization increased the rice-equivalent yield by 8.40, 6.38 and 6.90 % over the sub-optimum level in both the cropping systems. Among cropping systems, total water-use efficiency was higher in rice-lentil (Lens culinaris Medius)-greengram (Vigna radiata L.Wilczek), followed by rice-wheat (Triticum aestivum L. emend. Fiori & Paol.)-greengram. However, total water- use efficiency was more at optimum level of irrigation during first year, whereas during second and third year reverse was the case. There was a negative balance in nitrogen and phosphorus in both the cropping systems as well as levels of irrigation and nitrogen. Among the cropping system, maximum negative balance (-564 kg N/ha) was recorded in rice-wheat -greengram, followed by rice-lentil- greengram (-350 kg N/ha). Available phosphorus balance was also negative in both the cropping systems, levels of irrigation and nitrogen. Maximum available phosphorus balance was recorded in cereal dominated cropping system (-244 kg P/ha), followed by pulse dominated cropping system (-238 kg P/ha). There was a positive balance in potassium in both the cropping systems and levels of irrigation and nitrogen.
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Publisher |
The Indian Journal of Agricultural Sciences
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Date |
2008-01-05
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Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
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Format |
application/pdf
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Identifier |
http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/9760
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Source |
The Indian Journal of Agricultural Sciences; Vol 78, No 1 (2008)
0019-5022 |
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Language |
eng
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Relation |
http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/9760/4328
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Rights |
Copyright (c) 2014 The Indian Journal of Agricultural Sciences
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