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# Meststoffen uit de winkel
https://www.overmeststoffen.nl/
Een lesje bio-chemie.
NPK op mest aanduiding staat voor stikstof-fosfor-kalium verhouding.
Calcium (Ca), magnesium (Mg), silicium (Si), zwavel (S), zuurstof (O), koolstof (C)
Stikstof in de vorm van nitraat (NO3).
Zwavel is pH (zuurgraad) verlagend
**organische meststoffen**
bloedmeel, beenderenmeel, verenmeel, koemest (korrels), [gier van brandnetel](https://www.tuinpraat.be/brandnetelgier-maken-en-gebruiken/)
*mineralen*
[kiezeriet](https://denl.abcdef.wiki/wiki/Kieserit_%28Mineral%29)
[parentkali]()
[kalk]() meestal in de vorm van calcium carbonaat gemaakt van bijvoorbeeld schelpen
gesteentemeel (lavameel)
kunstmest
[kalkamonsalpeter]() bevat kalk en ammoniumnitraat
## Werking van stoffen
Bladgroenten stikstof
https://en.wikipedia.org/wiki/Ammonium_nitrate
https://en.wikipedia.org/wiki/Blood_meal
Wortel kalium
https://en.wikipedia.org/wiki/Potassium#Fertilizer
https://en.wikipedia.org/wiki/Potassium_nitrate
Magnesium
Bladgroen magnesium zoals onderander kiezeriet (magnesiumsulfaat).
"magnesium is a component of chlorophyll)" https://en.wikipedia.org/wiki/Chlorophyll
Fosfor is benodigd voor veel processen "Artificial phosphate fertilisation is necessary because phosphorus is essential to all living organisms; it is involved in energy transfers, strength of root and stems, photosynthesis, the expansion of plant roots, formation of seeds and flowers, and other important factors effecting overall plant health and genetics." - https://en.wikipedia.org/wiki/Phosphorus#Fertiliser
Referenties
* <https://www.greenwaybiotech.com/blogs/gardening-articles/what-is-the-function-of-sulfur-in-plants>
* <https://www.greenwaybiotech.com/blogs/gardening-articles/major-elements-vs-trace-elements-why-your-plants-need-both>
* <https://www.smart-fertilizer.com/articles/sulfur/>
* <https://www.greenwaybiotech.com/blogs/gardening-articles/what-is-the-function-of-sulfur-in-plants>
* <https://www.actimin.nl/>
* <https://www.servaplant.nl/steenmeel/>
* <https://www.biogroei.be/kenniscentrum/lavameel>
* <https://nl.wikipedia.org/wiki/Steenmeel#Lavameel>
* https://velt.nu/vraag-antwoord/moestuinvragen/hoe-werken-lavameel-en-basaltmeel