Hauv hom lus muaj qhov tsis meej pem txog lub ntsiab lus ntawm "humus" thiab "compost". Txawm hais tias ob qho tib si substrate muaj qhov sib xws, muaj qhov sib txawv me me hauv lawv qhov tsim thiab muaj pes tsawg leeg. Vim qhov zoo sib xws, compost yog qhov zoo tagnrho rau kev tu av.
Dab tsi yog qhov txawv ntawm humus?
Humus yog ib hom av txheej ntuj tsim los ntawm decomposed organic residues, thaum compost muaj zaub pov tseg thiab tseem tsis tau tag nrho decomposed. Ob hom ntawm substrate yog nplua nuj nyob rau hauv cov zaub mov thiab yog zoo tagnrho rau cov av tu.
Humus as a homogeneous av txheej
Humus yog txheej saum toj kawg nkaus ntawm cov av nyob rau hauv tej chaw nyob, uas muaj decomposed organic residues. Cov kab mob hauv av txheej txheem tsiaj thiab cov nroj tsuag nyob thiab tsim ib homogeneous substrate nplua nuj nyob rau hauv cov as-ham. Cov av fauna xav tau noo noo, cua thiab cua sov los hloov cov tshuaj. Yog tias cov xwm txheej tsis raug, rot yuav tshwm sim. Ib txheej ntawm humus rau hauv av khaws dej thiab muab cov as-ham rau cov nroj tsuag.
Humus xau tsis tshwm sim nyob txhua qhov chaw. Av fauna yog cuam tshuam los ntawm carbon-nitrogen piv. Muaj kev tsis sib haum xeeb hauv kev pom zoo ntawm carbon ntawm cov av ntawm coniferous hav zoov. Koob litter acidifies cov av, uas yog vim li cas tsis muaj cov av nyob ntawm no. Hauv hav zoov deciduous, qhov sib npaug yog sib npaug thiab cov av fauna tsim ib txheej tuab ntawm humus.
Compost as a heterogeneous composition
Tsis zoo li humus, compost av tseem tsis tau decomposed kiag li. Lub substrate yog ib feem ntawm cov nroj tsuag pov tseg uas tau ua tiav rau hauv humus los ntawm kev ua ntawm cov kab mob hauv av. Nyob rau hauv kev sib piv, mature compost av kuj hu ua compost. Compost substrate feem ntau muaj cov tsis-rotted thiab woody cog qhov chaw, yog li ntawd tsuas yog ib feem ntawm nws muaj homogeneous humus nrog ib tug zoo crumb qauv.
Thaum humus yog tsim nyob rau hauv tej vaj tse yam tsis muaj kev cuam tshuam tib neeg, compost yog nquag tsim. Muaj cov compost tshiab uas muaj me me ntawm decomposable organic residues. Qhov no substrate stimulates kev ua haujlwm ntawm cov kab mob hauv av. Npaj-ua compost muaj ntau ntawm cov ntshiab humus thiab me me ntawm cov khoom uas nyuaj rau decompose. Nws yog maj mam ua tiav los ntawm cov av fauna thiab sawv cev rau qhov qeeb-ntws ntawm cov as-ham.
Siv cov compost
Humus muaj qhov sib npaug ntawm calcium thiab hlau, potassium thiab txhuas, magnesium thiab manganese, phosphorus thiab sulfur, nitrogen thiab carbon. Ib qho zoo-ripened compost uas tau khaws cia tsawg kawg ib xyoos yog piv rau cov humus ntshiab. Nws tsis tsuas yog ua chiv, tab sis kuj muaj txiaj ntsig zoo rau cov av.
Compost ua rau cov teebmeem no:
- Txheej txheem crumb
- Kev txhim kho dej thiab huab cua sib npaug
- Increase buffer capacity
- Maximizing aggregate stability
