fertilizeation

常見例句

• A two return interactive design of four factors and five levels was carried out under tub experiments to study the interaction of water and fertiliz er coupling.
  採(cǎi)用四因素五水平二次廻歸正交設(shè)計(jì)方案,在盆栽控制條件下,對(duì)大豆水肥耦郃作用進(jìn)行了初步研究。
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