桃树原产中国，经过劳动人民的长期栽培，品种繁多。
Peach trees were grown originally in China. It have been various species over a long term cultivation by labouring people.
随着全球水资源危机的日益严重，长期以来农业节水栽培一直是人们关注的问题。
With the increasing global water crisis, water-saving cultivation in agricultural production has been regarded as a serious issue for a long term.
目的测定不同生长期限和不同栽培方法的掌叶大黄中大黄素和大黄酚的含量，为大黄的GAP规范化种植提供参考依据。
OBJECTIVE to comparing the contents of emodin and chrysophanol in Rheum Palmatum L. of different plant periods and cultivated methods, to offer a scientific basis for GAP.
应用推荐