In:
CHINESE JOURNAL OF ECO-AGRICULTURE, China Science Publishing & Media Ltd., Vol. 17, No. 1 ( 2009-3-26), p. 29-33
Type of Medium:
Online Resource
ISSN:
1671-3990
DOI:
10.3724/SP.J.1011.2009.00029
Language:
English
Publisher:
China Science Publishing & Media Ltd.
Publication Date:
2009