Zaub yub tray seedling cultivation - xaiv substrate

(1) Tam sim no, cov substrates feem ntau siv rau kev cog qoob loo xws li peat, vermiculite, perlite, nceb residue, humus, kho cawv txiv hmab, thiab sawdust.
(2) Nyom charcoal muab faib ua dej tshiab nyom charcoal thiab grey nyom tshiab charcoal. Dej tshiab nyom charcoal muaj pH ntawm 3-4, ib tug nitrogen cov ntsiab lus ntawm 0.6-1.4%, thiab tsis zoo hydrophilicity, thaum grey nyom nyom charcoal muaj pH ntawm {{5} }.5, cov ntsiab lus muaj txiaj ntsig zoo, thiab zoo hydrophilicity.
(3) Vermiculite muaj lub teeb tshwj xeeb lub ntiajteb txawj nqus, huab cua permeability zoo, thiab muaj peev xwm tuav dej ruaj khov. Nyob rau tib lub sijhawm, nws cov ntsiab lus ntawm cov poov tshuaj kuj yog qhov siab heev, thiab nws muaj peev xwm hloov tau ntsev ntau.
(4) Lub pH ntawm perlite yog 7-7.5, thiab nws tsis muaj peev xwm tuav dej los yog ntsev hloov peev xwm. Nyob rau hauv cov txheej txheem ntawm kev cog qoob loo, cov nyiaj siv yog me me, feem ntau tsuas yog li 10%. Yog tias nws yog lub caij ntuj sov, perlite feem ntau tsis ntxiv.
(5) Tam sim no, feem ntau cov nroj tsuag hauv tsev tau npaj siv qhov piv ntawm cov nyom charcoal: vermiculite=2:1, lossis nyom charcoal: vermiculite=3:1, lossis nyom charcoal: vermiculite: perlite{{ 5}}: 1: 1 los ntawm ntim.