12月29日(ri)，河北永清(qing)東(dong)營村(cun)立體(ti)(ti)農(nong)業示(shi)范園工人在(zai)查看“無(wu)土(tu)芹(qin)菜”水生(sheng)(sheng)根系生(sheng)(sheng)長情況。近(jin)日(ri)，“無(wu)土(tu)芹(qin)菜”在(zai)東(dong)營村(cun)立體(ti)(ti)農(nong)業示(shi)范園試種(zhong)(zhong)成功。據(ju)悉，“無(wu)土(tu)芹(qin)菜”采用(yong)“自動下沉式水生(sheng)(sheng)蔬菜種(zhong)(zhong)植浮床”栽培技術，實現芹(qin)菜標(biao)準化(hua)種(zhong)(zhong)植生(sheng)(sheng)產。 新(xin)華社記者李曉(xiao)果攝