1. Lub hauv paus chiv
Cov chiv yooj yim siv rau kev cog qoob loo lub caij ntuj sov feem ntau yog tov nrog cov organic chiv thiab qee cov tshuaj chiv, nrog rau cov ntaub ntawv siv hauv nruab nrab.
2. Noob chiv
Nws yog ib qho nyuaj rau siv lub hauv paus chiv rau thaj av intercropped nrog pob kws, thiab noob chiv tuaj yeem siv los daws qhov teeb meem ntawm cov khoom noj. Ib qho me me ntawm cov chiv ua liaj ua teb (decomposed) tuaj yeem siv los ua cov noob chiv lossis urea ua cov noob chiv, tab sis cov noob thiab chiv yuav tsum tau muab cais tawm kom tsis txhob muaj kev puas tsuaj ntawm cov noob.
Nws raug nquahu kom siv 3-4 kg ntawm urea ib mu.
3. Topdressing
Lub sij hawm, zaus, thiab kom muaj nuj nqis ntawm topdressing yuav tsum tau muab xam raws li tej yam xws li kev loj hlob pob kws, lub sij hawm xav tau chiv, thiab lub sij hawm loj hlob.
Phosphorus thiab poov tshuaj chiv muaj cov chiv ua haujlwm ntev dua, thiab muaj qhov xav tau loj rau pob kws nyob rau theem pib. Raws li lub hauv paus chiv lossis cov chiv chiv, nws tuaj yeem siv tau ib zaug, nrog 25 mus rau 35 kilograms ntawm phosphorus chiv thiab 10-15 kilograms ntawm poov tshuaj chiv siv rau ib mu.
Kev hnav khaub ncaws saum toj kawg nkaus ntawm nitrogen chiv tuaj yeem siv peb-kauj ruam saum toj kawg nkaus-hnav khaub ncaws txoj kev ntawm lub teeb topdressing ntawm seedling fertilizer, hnyav topdressing ntawm pob ntseg fertilizer, thiab ntxiv topdressing ntawm grain fertilizer: seedling fertilizer account rau 30 feem pua ntawm tag nrho cov topdressing tus nqi, thiab topdressing los ntawm yub. Kev teeb tsa mus rau theem sib koom ua ke muaj cov txiaj ntsig ntawm kev ntxiv dag zog rau cov seedlings, txhawb cov seedlings, thiab ntxiv dag zog rau stems.
Pob ntseg chiv suav txog li 50 feem pua ntawm tag nrho cov nyiaj topdressing. Kev siv nws ntawm lub tswb nrov ntawm pob kws tuaj yeem ua rau pob ntseg loj dua thiab muaj cov nplej ntau dua.
Granular chiv suav txog 20 feem pua ntawm tag nrho cov topdressing tus nqi, thiab yog siv los ntawm tasseling mus rau flowering los muab cov as-ham rau lub sij hawm loj hlob ntawm pob kws, ncua lub sij hawm ntsuab nplooj ntoos.
