Thaum cog pob kws, txhawm rau sib tw rau cog, cov av feem ntau tsis fertilized. Yog li ntawd, feem ntau ntawm cov as-ham uas yuav tsum tau rau pob kws loj hlob thiab kev loj hlob tsuas yog tau los ntawm topdressing thiab foliar spraying kom tau cov as-ham tsim nyog rau pob kws loj hlob thiab kev loj hlob. Pob kws yog rhiab heev rau cov kab mob, tshwj xeeb tshaj yog zinc. Thaum lub sij hawm kev loj hlob, yog tias tsis muaj zinc, cov teeb meem xws li yub yub dawb thiab pollination tsis zoo tuaj yeem tshwm sim, ua rau txo qis yield.
Cov tsos mob ntawm zinc deficiency hauv pob kws
Feem ntau, pib ntawm 4- theem nplooj, xim ntawm nplooj ntawm lub hauv paus ntawm nplooj tshiab yuav sib dua thiab daj dawb. Hauv theem 5-6 nplooj, muaj teeb daj thiab lub teeb ntsuab kab txaij ntawm 1-3 nplooj hauv qab nplooj siab, tab sis cov hlab ntsha tseem ntsuab. Ntshav kab txaij tshwm ntawm lub hauv paus. Tom qab 10-15 hnub, liab doog maj mam tig daj dawb, thiab nplooj tawv nqaij yuav thinner thiab zoo li ib tug "dawb seedling".
Thaum pob kws tsis muaj zinc txaus, tag nrho cov teb yog them nrog dawb, zinc tsis muaj pob kws cov nroj tsuag uas luv luv, muaj luv internodes, overlapping nplooj hauv ncoo, qeeb txoj kev loj hlob ntawm lub plawv nplooj, thiab zoo li tiaj tus. Hauv qhov xwm txheej hnyav, cov nplooj dawb maj mam qhuav, thiab txawm tias tag nrho cov nroj tsuag tuag.
Kev Tiv Thaiv thiab Tswj Zinc Deficiency hauv pob kws
1. Ua kom daim ntawv thov ntawm cov chiv chiv
Organic fertilizer yog txoj kev tseem ceeb, ntxiv los ntawm cov tshuaj chiv. Tsim nyog fertilization yog tsim nyog, thiab organic chiv yuav tsum tau decomposed thiab kho tsis muaj mob. Siv li ntawm 2500 kilograms ntawm zoo organic chiv thiab 1.5 kilograms ntawm zinc sulfate ib evkawj, sib tov lawv nrog organic chiv, ua ke nrog av npaj, thiab siv rau cov av raws li lub hauv paus chiv.
2. Zinc fertilizer noob sib tov
Txhua kilogram ntawm pob kws noob tuaj yeem tov nrog 20-40 grams zinc sulfate. Thaum sib tov, yaj cov chiv nrog dej me ntsis ua ntej, tshuaj tsuag rau ntawm cov noob, sib tov zoo, cua qhuav, thiab sow.
3. Kev fertilization
Txoj hauv kev tseem ceeb yog siv topdressing sab nraum cov hauv paus hniav, uas yog ib txoj hauv kev zoo los ntxiv zinc chiv tom qab pom cov "dawb seedlings" ntawm pob kws.
