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Jordmix enligt Mandala Seeds – Ingen perlit/vermiculit/leca
Ha beställt Satori från Mandala och nu sitter jag och läser på deras hemsida om råd, tips och instruktioner för odling av deras strains. Och när jag läser deras “Jord Guide” (http://www.mandalaseeds.com/html/soil_guide.html) så upptäcker jag att enligt dom ska man INTE blanda ut jorden med perlite. Och man ska ABSOLUT INTE lägga lecakulor i botten på krukan.
Så här säger dom:
Is it necessary to add anything for drainage such as perlite, vermiculite, sand, hydro correls?
It is best not to add any additional materials to your potting soil. Horticultural grade potting soil is perfectly mixed for the best air-water ratio. Adding more non-nutritive substances depletes the water retention capacity of the soil, it unnecessarily “stretches” the soil and reduces the total amount of nutrients available to the plant, and it creates dry pockets in the container. Especially harmful is to fill the bottom of the container with coarse materials such as hydro correls. This is where most roots grow down looking for water and nutrients! If they reach a dry and sterile layer of substrate the delicate root hairs shrivel, valuable space is lost where the plant requires rich soil that stores moisture and minerals.
If you are planting outdoor and your soil is too compact a modest addition of perlite/vermiculite or sand helps to increase drainage. Humus, such as from compost, is the best additive because it also provides many microorganisms and nutrients to the soil mix.
Har någon testat att odla med jorden på det här sättet? Och funkade det bra?