Prohexadione calcium yog cov tshuaj tswj kev loj hlob ntawm cov nroj tsuag uas muaj txiaj ntsig zoo txhawb kev loj hlob ntawm tubers hauv cov qoob loo xws li qos yaj ywm thiab qos yaj ywm qab zib, txhim kho cov qoob loo thiab zoo.
Mechanism of Action: Los ntawm inhibiting gibberellin synthesis, Prohexadione calcium lov apical dominance, ua rau cov stems thicker thiab luv internodes, yog li txo vegetative loj hlob thiab coj cov khoom photosynthetic ntawm tubers. Nyob rau tib lub sijhawm, nws nce chlorophyll cov ntsiab lus, txhim kho photosynthetic efficiency, thiab txhawb cov translocation ntawm assimilates mus rau tubers, nce qhuav teeb meem tsub zuj zuj.
Cov teebmeem ntawm Prohexadione calcium thov:
Txhawb nqa tuber o: Tom qab thov, tuber o kom nrawm, ua rau muaj qhov sib txawv loj dua thiab muaj txiaj ntsig ntau ntxiv.
Txhim kho qhov zoo: Cov ntsiab lus qhuav qhuav thiab txhim kho lub neej ntawm tubers pab txhawb kev lag luam ntau dua.
Txhim kho kev ntxhov siab: Prohexadione calcium kuj txhawb kev loj hlob hauv paus, tiv thaiv kev laus ntxov ntxov, thiab muaj kev tswj xyuas qee yam kab mob (xws li qos yaj ywm lig blight).
Yuav siv Prohexadione calcium li cas:
Kev tsim thiab ntau npaum li cas: Prohexadione calcium feem ntau muaj raws li 5% effervescent granule lossis hmoov ntub dej. Rau cov qos yaj ywm thiab qos yaj ywm qab zib, nws raug nquahu kom siv 20-40 grams ntawm 5% Prohexadione calcium ib mu (kwv yees li 0.067 hectares), siv 1-2 zaug nyob ntawm kev loj hlob.
Lub sij hawm tseem ceeb ntawm daim ntawv thov: Daim ntawv thov yuav tsum pib txij thaum ntxov ntawm tuber tsim mus rau thaum pib ntawm tuber o theem, thaum cov nroj tsuag tsuas yog qhia kev loj hlob, kom pom kev zoo.
Kev ceev faj: Tsis txhob siv nyob rau hauv cov mob acidic heev. Nws tuaj yeem sib xyaw nrog lwm cov chiv lossis cov tswj hwm (xws li DA-6) txhawm rau txhim kho cov txiaj ntsig, tab sis kev saib xyuas yuav tsum tau them rau cov concentration kom tsis txhob muaj kev loj hlob ntau dhau.
