Translator Disclaimer
1 March 2012 Impact of Cutting a Clover Crop on the Nitrogen Supplied to Winter Wheat in an Intercropping System
Sun Zhenzhong, Ouyang Zhu, Li Fadong, Wu Lanfang
Author Affiliations +
Abstract

The major function of clover in a winter wheat—white clover intercropping system is to supply nitrogen (N) for the wheat. A field experiment was conducted at Yucheng Comprehensive Station of the Chinese Academy of Sciences, to evaluate the effect of cutting white clover on N fixation and the transfer of fixed N to the associated winter wheat. A method of 15N natural abundance was used to determine the nitrogen dynamics in the intercropping system. The results showed that the amount of N transferred from the clover to the wheat, throughout the growing season, varied between 34.4 and 57.5 kg ha-1. Compared to leaving the clover standing, cutting the clover increased the amount of N that accumulated in the soil and also resulted in reduced N concentrations in the leaves and stems of the wheat. Using the cut clover as mulch between wheat rows led to decreased N concentrations in the wheat plants' leaves and stems. The present study provides preliminary information on the amount of N transferred from clover to wheat in an intercropping system.

Sun Zhenzhong, Ouyang Zhu, Li Fadong, and Wu Lanfang "Impact of Cutting a Clover Crop on the Nitrogen Supplied to Winter Wheat in an Intercropping System," Journal of Resources and Ecology 3(1), 73-79, (1 March 2012). https://doi.org/10.5814/j.issn.1674-764x.2012.01.011
Received: 17 February 2012; Accepted: 1 February 2012; Published: 1 March 2012
JOURNAL ARTICLE
7 PAGES


Share
SHARE
KEYWORDS
15N natural abundance method
intercropping
nitrogen transfer
white clover
winter wheat
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top