humus txheej yog tsim los ntawm cov organic teeb meem lwj.
Dab tsi yog cov organic decayed hu ua?
Humus yog qhov tsaus ntuj, cov khoom siv organic uas tsim hauv av thaum cov nroj tsuag thiab tsiaj txhu lwj. Thaum cov nroj tsuag poob nplooj, twigs, thiab lwm yam khoom rau hauv av, nws piles. … Cov tuab xim av lossis xim dub uas nyob tom qab feem ntau ntawm cov organic litter tau decomposed yog humus.
Dab tsi yog tsim los ntawm cov organic decayed?
Kev ua tiav ntawm cov khoom tuag thiab hloov kho cov teeb meem organic tshwm sim hauv kev tsim cov organic teeb meem ntau dua hu ua humus (Juma, 1998). Cov txheej txheem no hu ua humification. Humus cuam tshuam rau av thaj chaw.
Cov av txheej twg yog tsim los ntawm cov khoom siv decaying?
Cov av saum toj kawg nkaus yog sib xyaw ntawm cov xuab zeb, silt, av nplaum thiab tawg ua cov organic teeb meem, hu ua humus Humus yog nplua nuj, cov organic decomposed feem ntau yog tsim los ntawm cov nroj tsuag tuag, crunched. -up nplooj, kab tuag thiab twigs. Topsoil yog lub tsev ntawm cov khoom muaj sia thiab cov khoom uas lawv tsim lossis hloov pauv.
txheej twg muaj cov organic?
Cov qab ntug yog: O ( humus los yog organic): Feem ntau cov organic teeb meem xws li decomposing nplooj. Lub ntug hiav txwv O yog nyias hauv qee cov av, tuab hauv lwm tus, thiab tsis muaj nyob hauv lwm tus. A (topsoil): Feem ntau cov ntxhia los ntawm niam txiv cov khoom siv nrog cov organic teeb meem.
