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Web URL(s): | http://www.nrcresearchpress.com/doi/pdfplus/10.4141/P04-001 Last checked: 02/03/2016 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Dong, S. K.;
Yang, Z. F.;
Long, R. J.;
Hu, Z. Z.;
Kang, M. Y. |
Author Affiliation: | Dong and Yang: State Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Bejing, China; Long: Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, China; Dong, Long and Hu: Grassland Science College, Gansu Agricultural University, Lanzhou, China; Kang: College of Resources Science, Beijing Normal University, Beijing, China |
Title: | Effect of N fertilizer on the productivity and nutritive values of perennial grass mixtures in the alpine region of Qinghai-Tibetan Plateau, China |
Section: | Agronomy Other records with the "Agronomy" Section
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Source: | Canadian Journal of Plant Science. Vol. 85, No. 2, April 2005, p. 361-368. |
Publishing Information: | Ottawa: Agricultural Institute of Canada |
# of Pages: | 8 |
Keywords: | TIC Keywords: Alpine climate; Dry weight; Fertilizer evaluation; Fertilizer recommendations; Mixtures; Nitrogen fertilization; Nutritional value; Organic matter accumulation
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Geographic Terms: | Qinghai-Tibetan Plateau, China |
Abstract/Contents: | "A study was conducted on grass mixtures that included smooth bromegrass (SB) + drooping wild ryegrass (DW), smooth bromegrass + Siberian wild ryegrass (SW) + crested wheatgrass (CW) and smooth bromegrass + Siberian wild ryegrass + drooping wild ryegrass + crested wheatgrass in the alpine region of Qinghai-Tibetan Plateau. The study was conducted from 1998 to 2000 to investigate the effects of N application rates and growing year on herbage dry matter (DM) yield and nutritive values. Herbage DM production increased linearly with N application rates. The effect of N application on DM yields was greater (P<0.05) in the 2nd and 3rd production years than in the establishment year. Dry matter yields of SB + SW + CW and SB + SW + DW + CW can reach as high as 15 000 kg ha-1 at 345 kg ha-1 N rate in the 3rd growing year. With increased N application rates, crude protein (CP) contents and 48 h in sacco DM degradability of grasses increased (P<0.05). No effect (P>0.05) of N application was detected on organic matter (OM) and acid detergent fibre (ADF) concentration. It can be concluded that for increased biomass production in the alpine region of the Qinghai-Tibetan Plateau, a minimum of 345 kg N ha-1 should be applied to grass stands in three split application of 115 kg N ha-1, in early June, early July and late July." |
Language: | English |
References: | 34 |
Note: | Tables Graphs Abstract appears in both English and French |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Dong, S. K., Z. F. Yang, R. J. Long, Z. Z. Hu, and M. Y. Kang. 2005. Effect of N fertilizer on the productivity and nutritive values of perennial grass mixtures in the alpine region of Qinghai-Tibetan Plateau, China. Can. J. Plant Sci. 85(2):p. 361-368. |
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| Web URL(s): http://www.nrcresearchpress.com/doi/pdfplus/10.4141/P04-001 Last checked: 02/03/2016 Requires: PDF Reader |
| MSU catalog number: SB 1 .C3 |
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