Journal of Food, Agriculture and Environment

Vol 10, Issue 1,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Effects of combined nitrogen fertilizer and nano-carbon application on yield and nitrogen use of rice grown on saline-alkali soil


Lili Fan 1, Yunhe Wang 2, Xiwen Shao 1*, Yanqiu Geng 1, Zhichun Wang 2, Yun Ma 3, Jian Liu 4

Recieved Date: 2011-09-16, Accepted Date: 2012-01-07


To investigate the effects of combined application of nitrogen fertilizer and nano-carbon on nitrogen use of soil and rice yield, six treatments were applied as a randomized complete block design with three replications including A1 (N 215 kg hm-2 + nano-carbon 1.194 kg hm-2), B1 (N 215 kg hm-2), A2 (N 150.5 kg hm-2 + nano-carbon 0.836 kg hm-2), B2 (N 150.5 kg hm-2), A3 (N 107.5 kg hm-2 + nano-carbon 0.597 kg hm-2) and B3 (N 107.5 kg hm-2), respectively, to a rice cv. Changbai 10. The soil total and available N, the N accumulation, dry matter accumulation of aerial part and the yield components such as spike number, filled spike number, 1000-grain weight and yield of O. sativa were studied. The result indicated that significant differences in nitrogen use of saline-alkali soil and yield were observed among the treatments and the deliverability of soil nutrition, the nitrogen uptake of plant, dry matter accumulation and yield significantly increased after combined application of nitrogen fertilizer and nano-carbon. The nitrogen accumulation of rice of A1, A2 and A3 treatments were 13.23%, 9.57% and 38.14% higher than B1, B2 and B3 treatments, respectively; total nitrogen residues of soil of A1, A2 and A3 treatments were 6.95%, 8.48% and 9.65% lower than B1, B2 and B3 treatments, respectively; dry biomass of aerial part of A1, A2 and Atreatments were 58%, 15.7% and 19.3% higher than B1, B2 and B3 treatments, respectively. The yield of all treatments combined application of N and nano-carbon were higher than those in treatments where only applied nitrogenous fertilizer was applied, compared to B1, B2 and B3 treatments, the yield of A1, A2 and A3 treatments were 18.36%, 8.51% and 10.19% higher, respectively. There was no significant difference between the yield of A2 and B1, which indicated that the yield of combined application of 70% conventional fertilizer and nano-carbon (N 150.5 kg hm-2 and nano-carbon 0.836 kg hm-2) was equal to that with supplied 100% conventional fertilizer (N 215 kg hm-2). This indicated that the utilization rate of nitrogen fertilizer increased after combined application of nano-carbon, which can save the N fertilizer in production practice. Therefore, combined treatment is suitable to application and dissemination in soda saline-alkali soil in the agriculture.


Saline-alkali soil, nano-carbon, rice, nitrogen, yield

Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 558-562

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :