Qhov concentration ntawm foliar fertilizer yuav tsum tsim nyog. Txij li thaum cov nplooj ntawm cov quav txau rau cov nplooj ntawm cov qoob loo sab saud, qhov cuam tshuam ntawm cov qoob loo ntawm cov chiv me me. Yog li ntawd, peb yuav tsum kawm kom txawj txau cov tshuaj lom cov quav chiv. Yog tias qhov siab tsis dhau, cov khoom noj haus uas tau chwv los ntawm cov qoob loo yog qhov tsawg, thiab cov nyhuv tsis pom tseeb. Ntau dhau lawm yuav tsum hlawv cov nplooj thiab ua rau cov chiv puas. Kev siv tshuaj tua kab tsuag tshuaj tua poov tshuaj ntawm tib hom quav rau ntawm cov qoob loo sib txawv tsis zoo ib yam, nws yuav tsum txiav txim siab raws li hom qoob loo. Lub acidity ntawm foliar fertilizer yuav tsum tsim nyog, thiab cov as-ham muaj sib txawv hav zoov xeev nyob txawv pH sib txawv. Txhawm rau kom muaj txiaj ntsig zoo ntawm cov chiv, yuav tsum muaj cov khoom acidity kom raug. Feem ntau, tus nqi pH yog qhov yuav tsum yog 5 thiab 8. Tus nqi pH yog siab dhau lossis qis dhau, ntxiv rau cuam tshuam rau kev nqus cov khoom noj khoom haus, nws tseem yuav ua rau muaj kev phom sij rau cov qoob loo. Ntxiv cov tshuaj ntxiv, thaum lub davhlau maub los siv cov kais dej rau cov xim av tshuaj tsuag rau cov tshuaj chiv rau ntawm cov nplooj, cov tshuaj ntxiv tsim nyog tuaj yeem ntxiv txhawm rau txhim kho kev txhawm rau ntawm cov tshuaj tov rau ntawm cov nroj tsuag nplooj thiab txhawb kev nqus ntawm cov chiv.
