Zobrazeno 1 - 1
of 1
pro vyhledávání: '"XIN Jing-shu"'
Publikováno v:
Journal of Agricultural Resources and Environment, Vol 32, Iss 6, Pp 530-536 (2015)
North China area is playing a significant role in grain production in China. Winter wheat-summer maize rotation is a major cropping system in this region. Based on the database of county cultivated land survey of soil fertility in Ministry of Agricul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::aacc96de5809da6831698052cbc0c253
http://www.aed.org.cn/nyzyyhjxb/html/2015/6/20150603.htm
http://www.aed.org.cn/nyzyyhjxb/html/2015/6/20150603.htm
