Thaum pib ntawm qhov tsis muaj potassium,tsob ntoo nyoms qhia txog kev loj hlob qeeb thiab nplooj ntsuab tsaus. Cov yam ntxwv tseem ceeb ntawm qhov tsis muaj potassium: feem ntau cov nplooj qub thiab cov npoo nplooj tig daj ua ntej, tom qab ntawd xim av, kub hnyiab thiab hlawv, thiab cov xim av thiab cov pob tshwm sim ntawm nplooj, tab sis nruab nrab, cov leeg thiab thaj chaw ze ntawm cov leeg tseem ntsuab. Thaum qib ntawm potassium tsis txaus nce ntxiv, tag nrho cov nplooj tig xim av lossis qhuav, necrotizes thiab poob tawm; qee cov nplooj cog yog tooj liab, curling downward, nrog cov ntaub so ntswg mesophyll bulging ntawm qhov chaw nplooj thiab cov leeg sunken. Thaum cov nroj tsuag tsis muaj potassium, lub hauv paus system kuj raug puas tsuaj loj heev, nrog luv luv thiab ob peb cov hauv paus hniav, yooj yim laus ua ntej lub sijhawm, lwj hauv cov xwm txheej hnyav, thiab nyob ntawm thaj chaw hauv paus. Thaum cov nroj tsuag nyom tsis muaj potassium, cov pob xim av tshwm sim ntawm cov nplooj qis, thiab hauv cov xwm txheej hnyav, tib cov tsos mob tshwm sim ntawm cov nplooj tshiab. Cov nplooj yog mos thiab drooping, cov qia yog nyias thiab tsis muaj zog, thiab cov internodes luv; thaum cov nroj tsuag leguminous tsis muaj potassium, cov ntsuab interveinal yuav tshwm sim thawj zaug, thiab tom qab ntawd tig daj, tsim cov nplooj mottled. Yog tias mob hnyav, cov npoo ntawm nplooj yuav kub hnyiab thiab nkhaus mus rau hauv qab, thiab cov xim av yuav tshwm sim sab hauv ntawm qhov chaw nruab nrab ntawm cov leeg. Cov tawv nqaij ntawm nplooj poob dej thiab ntsws, qhov saum npoo ntawm nplooj yuav nkhaus lossis concave, thiab maj mam kub hnyiab thiab poob, thiab cov nroj tsuag laus ua ntej lub sijhawm.
Kuv yuav tsum ua li cas yog tias cov nyom tsis muaj potassium? Potassium tsis yog tsuas yog cov khoom noj khoom haus tseem ceeb rau lub neej ntawm cov nroj tsuag xwb, tab sis kuj yog ib qho ntawm peb yam ntawm cov chiv. Cov ntsiab lus ntawm potassium hauv cov nroj tsuag yog qhov thib ob tsuas yog nitrogen. Kev siv cov chiv potassium kom tsim nyog tuaj yeem txhim kho cov photosynthesis ntawm cov nroj tsuag nyom thiab lawv txoj kev tiv thaiv kab mob thiab kab tsuag. Yog tias cov tsos mob ntawm potassium tsis txaus pom hauv kev tswj nyom, cov chiv potassium (xws li potassium chloride, potassium sulfate, potassium phosphate, thiab lwm yam) yuav tsum tau siv rau kev tiv thaiv thiab tswj. Potassium chloride thiab potassium sulfate yog ob qho tib si cov chiv ua haujlwm sai uas tuaj yeem siv ua cov chiv hauv paus thiabkev hnav khaub ncaws sab saudNws yog qhov zoo tshaj plaws los siv potassium sulfate rau cov av acidic thiab potassium nitrate rau cov av alkaline.
Yog tias cov nyom muaj cov tsos mob saum toj no, cov hau kev hauv qab no tuaj yeem siv los daws nws:
1. Siv cov chiv nitrogen tsawg dua thiab dej tsawg dua tam sim ntawd tom qab siv cov chiv nitrogen.
2. Siv cov khoom siv cag nrog cov amino acids thiab cov ntsiab lus tseem ceeb rau kev txau, feem ntau yog rau kev rov ua kom cov hauv paus hniav zoo dua thiab kev ntxiv cov ntsiab lus tseem ceeb.
3. Siv potassium sulfate 2kg/zaug.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-11-2024