基本解釋[辳業(yè)科學(xué)]氮肥需要量英漢例句雙語例句Objective To study the fertilizer requirement characteristics of Polygala tenuifolia on nitrogen, phosphorous and potasium fertilizers to improve cultural practices in producing region.目的研究栽培遠(yuǎn)志對(duì)氮、磷、鉀的需肥特性，指導(dǎo)産區(qū)大田生産。nitrogen fertilizer requirement更多例句專業(yè)釋義辳業(yè)科學(xué)氮肥需要量