Siv nruj me ntsis raws li cov lus qhia: Kev siv ntau dhau tuaj yeem ua rau cov nroj tsuag loj hlob tsis zoo lossis txawm tias phytotoxicity.
Xaiv lub sijhawm thov kom tsim nyog: Cov tswj kev loj hlob sib txawv muaj qhov sib txawv ntawm cov theem kev loj hlob sib txawv; Piv txwv li, gibberellin yog qhov zoo tshaj plaws thaum siv thaum lub sij hawm flowering.
Ua tib zoo saib xyuas lub sijhawm kev nyab xeeb: xyuas kom meej tias cov tshuaj tua kab seem ntawm cov qoob loo ua tau raws li lub teb chaws cov qauv ua ntej sau qoob.
Tsis txhob sib xyaw tsis raug: Sib xyaw qee cov kev tswj hwm kev loj hlob nrog rau lwm cov tshuaj tua kab tuaj yeem tsim cov teebmeem antagonistic lossis ua rau muaj kev pheej hmoo ntawm phytotoxicity.
