1. Cov khoom noj dab tsi uas xav tau rau kev loj hlob ntawm cov qoob loo
Raws li ib txwm muaj, cov qoob loo tshiab muaj 75% -95% noo noo thiab 5% -25% qhuav teeb meem. Kwv yees li 95% ntawm cov khoom qhuav yog cov organic tebchaw, thiab tsuas yog li 5% ntawm cov tshuaj inorganic.
Yog hais tias cov khoom qhuav yog rhuab thiab hlawv, yuav luag tag nrho nws cov organic tebchaw yuav oxidized thiab decomposed, thiab khiav tawm nyob rau hauv daim ntawv ntawm carbon dioxide, nitrogen, thiab dej. Cov seem seem yog tshauv, uas muaj ntau ntau cov tshuaj, suav nrog cov tsim nyog rau kev loj hlob qoob loo. Cov zaub mov tsis tseem ceeb.
Raws li kev tshawb fawb, muaj 16 yam tseem ceeb rau cov nroj tsuag: carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, hlau, boron, manganese, tooj liab, zinc, molybdenum thiab chlorine. Txawm hais tias 16 cov khoom noj khoom haus no muaj qhov hnyav sib txawv hauv cov qoob loo, lawv txhua tus ua lub luag haujlwm tseem ceeb heev.
Piv txwv li, cov ntsiab lus macro nitrogen, phosphorus, thiab potassium tseem ceeb heev rau kev loj hlob ntawm cov qoob loo, tab sis cov ntsiab lus nruab nrab thiab kab kawm kuj tseem ceeb heev. Qhov tsis muaj txhua yam kab kawm yuav cuam tshuam rau kev loj hlob thiab kev loj hlob ntawm cov qoob loo. Nyob rau hauv tus txheej txheem ntawm kev loj hlob qoob loo, cov as-ham uas tsis muaj yuav tsum tau supplemented nyob rau hauv lub sij hawm.
2. Qhov sib txawv ntawm cov tshuaj chiv thiab cov organic chiv
1. Cov chiv
Namely, tshuaj chiv yog chiv ua los ntawm cov tshuaj los yog lub cev txoj kev uas muaj ib los yog ob peb as-ham uas yuav tsum tau rau kev loj hlob ntawm cov qoob loo. Lawv tseem hu ua inorganic chiv, feem ntau suav nrog nitrogen chiv, phosphate chiv, potash chiv, micro-fertilizer, compound fertilizer, thiab hais txog.
Cov tshuaj chiv muaj cov ntsiab lus zoo, cov txiaj ntsig ceev ceev, thiab cov chiv muaj zog, tab sis feem ntau nws tsis muaj cov organic teeb meem, thiab nws tsis cuam tshuam rau kev txhim kho av thiab fertilizing.
2. Organic chiv
Cov hauv paus ntsiab lus yog tsiaj txhu thiab cov nroj tsuag seem, tsiaj txhu thiab cov nroj tsuag pov tseg, thiab lwm yam, uas yog cov khoom siv carbonaceous uas siv rau hauv av los muab cov khoom noj rau cov qoob loo. Organic chiv muaj ntau yam muaj txiaj ntsig, xws li ntau yam organic acids, peptides, thiab cov khoom noj muaj txiaj ntsig nrog rau nitrogen, phosphorus, thiab potassium.
Nws tuaj yeem tsis tsuas yog muab kev noj zaub mov zoo rau cov qoob loo, tab sis kuj tseem muaj cov txiaj ntsig ntawm cov chiv ntev ntev, uas tuaj yeem nce thiab ntxiv cov av organic teeb meem, txhawb nqa microbial kev loj hlob, thiab txhim kho av kev ua haujlwm.
