① Kev siv ntau yam. Cog kev loj hlob regulators muaj feem xyuam rau yuav luag tag nrho cov siab thiab qis nroj tsuag nyob rau hauv lub cog kev lag luam, xws li teb cov qoob loo, zaub, txiv hmab txiv ntoo, paj, hav zoov ntoo, kelp, laver, edible fungi, thiab lwm yam. Lawv tswj cov nroj tsuag loj hlob thiab kev loj hlob los ntawm regulating lub physiological txheej txheem ntawm photosynthesis, ua pa, khoom nqus thiab thauj, teeb liab transduction, stomatal qhib, thiab lwm yam. txhim kho kev sib cuam tshuam ntawm cov nroj tsuag thiab ib puag ncig, txhim kho cov qoob loo tiv thaiv kev ntxhov siab, ua rau cov qoob loo nce ntxiv, txhim kho cov khoom ua liaj ua teb zoo, thiab ua kom cov lus qhia ntawm cov qoob loo agronomic zoo tuaj raws li cov neeg xav tau.
② Kev siv me me, ceev ceev, ua haujlwm siab, thiab tsis muaj tshuaj lom. Feem ntau cov qoob loo tsuas yog yuav tsum tau txau ib zaug ib lub caij ntawm lub sijhawm teev.
③ tuaj yeem tswj hwm ob qho tib si sab nraud thiab cov txheej txheem physiological ntawm cov nroj tsuag.
④ Cov hom phiaj siab thiab kev tshaj lij. Nws tuaj yeem daws cov teeb meem nyuaj nrog rau lwm txoj hauv kev, xws li tsim cov txiv hmab txiv ntoo tsis muaj noob, tswj cov cua puas, tswj cov nroj tsuag zoo, txhawb cov cag ntawm cuttings, txiv hmab txiv ntoo ripening thiab xim, inhibiting axillary bud loj hlob, thiab txhawb paj rwb nplooj shedding.
⑤ Cov kev ua tau zoo ntawm cov nroj tsuag kev loj hlob yog cuam tshuam los ntawm ntau yam, ua rau nws nyuaj rau kev ua tiav cov txiaj ntsig zoo. Cov xwm txheej huab cua, lub sijhawm thov, ntau npaum li cas, daim ntawv thov txoj kev, daim ntawv thov chaw, thiab cov qoob loo nws tus kheej nqus, hloov chaw, kev sib koom ua ke, thiab cov metabolism hauv txhua yam cuam tshuam rau lawv cov kev ua tau zoo.
