fertilizer requirement

基本解釋

There was a range for parameters of fertilizer requirement, so it should be adjusted according to soil fertility and yield.
需肥量參數(shù)具有較大幅度的變化，應(yīng)按照土壤肥力以及產(chǎn)量目標(biāo)來(lái)合理調(diào)整并確定這個(gè)重要參數(shù)。
Based on the present status of decreasing marketing in chemical fertilizer, a primary prediction of fertilizer requirement in future 5~15 years is made at home and abroad.
分析國(guó)內(nèi)外化肥市場(chǎng)銷量下降的原因，介紹有關(guān)部門對(duì)今后5～ 15年國(guó)內(nèi)外需求量的初步預(yù)測(cè)。
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)產(chǎn)區(qū)大田生產(chǎn)。