Video: Dab tsi yog meant los ntawm av acidity?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhais thiab ua rau Av Acidity
Cov av acid yog txhais raws li ib qho av uas muaj pH tsawg dua 7.0 (nruab nrab). Acidity yog vim hydrogen (H+) Cov concentration ntawm ion nyob rau hauv cov ntshav av . Qhov siab dua H+ concentration, qhov qis dua pH
Ua raws li qhov xav tau, koj yuav kho cov av acidity li cas?
Yog koj av yog alkaline , koj tuaj yeem txo koj qhov av cov pH los yog ua kom ntau acidic los ntawm kev siv ntau yam khoom. Cov no suav nrog sphagnum peat, elemental sulfur, aluminium sulfate, hlau sulfate, acidifying nitrogen, thiab organic mulches.
Kuj Paub, dab tsi yog qhov chaw ntawm av acidity? Kev cog qoob loo thiab siv cov chiv nitrogen yog ob qhov chaw tseem ceeb ntawm cov av acidity thaum lwm tus pab txhawb dej nag . Qhov tshwm sim yog qhov ntawd hydrogen , txhuas, thiab hlau (acidic cations) hloov calcium, magnesium, potassium, thiab sodium (basic cations) ntawm cov av cation txauv complex.
Tsis tas li ntawd, ob hom av acidity yog dab tsi?
- Cov av muaj ob lub pas dej ntawm acidity - Active Acidity thiab Exchangeable Acidity.
- Lub active acidity yog hais txog cov dawb hydrogen ions (H+) nyob rau hauv cov av tov.
- Txawm li cas los xij, muaj lwm qhov ntawm acidity hauv cov av, uas yog Exchangeable Acidity.
- Feem ntau cov av colloids (particles) nqa cov nqi tsis zoo.
Yuav ua li cas yog av acidic?
Peb yam tseem ceeb ua rau av acidic . Cov dej ntau dhau ua rau cov khoom noj tseem ceeb, xws li potassium, magnesium, thiab calcium, raug ntxuav tawm (leached) los ntawm av . Cov ntsiab lus no txhua tus tiv thaiv av los ntawm ua acidic , yog li thaum lawv nyob nraum leached tawm, pH theem ntawm lub av pib poob, ua rau av acidic.
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