机译:香椿在山坡上的保护栽培技术研究。
[1]Institute of Cash Crops of Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China;
[2]Luquan Gujia Toona sinensis Specialized Coop-erative, Shijiazhuang 050200, China;
[3]Hebei Chemical and Pharmaceutical College, Shijiazhuang 050026, China;
[2]Luquan Gujia Toona sinensis Specialized Coop-erative, Shijiazhuang 050200, China;