nitrogen fertilizer requirement
常見例句
- 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)志對氮、磷、鉀的需肥特性，指導(dǎo)產(chǎn)區(qū)大田生產(chǎn)。 返回 nitrogen fertilizer requirement