Siarczan potasu 1kg

zł54.90

(zł54.90 /kg)

Tax included

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Description
Product Details

Siarczan potasu
Nazwa: Siarczan potasu
Synonimy: siarczan dipotasu, tetraoksydosiarczan(2−) potasu
Gatunek: Czysty
Czystość: Czysty
Wzór chemiczny: K2SO4

Siarczan potasu, K2SO4 to nieorganiczny związek chemiczny - sól kwasu siarkowego i potasu. Jest również zwany siarczanem potażu i stanowi najpopularniejszy nisko chlorowy nawóz. Łączy w sobie najważniejsze składniki odżywcze - potas i siarkę, które są dla roślin łatwoprzyswajalne i łatwodostępne. 50% jego składu to tlenek potasu (K2O; 42% potasu), a 18% siarka, co zapewnia optymalne stężenie tych pierwiaswtków. Jest to najlepsze źródło składników odżywczych dla roślin, które są wrażliwe na chlorki oraz dla intensywnych systemów uprawy (akwaria, szklarnie, tunele foliowe).

W odróżnieniu od innych źródeł potasu, jak chlorek potasu lub azotan potasu, siarczan potasu ma dosyć niski wskaźnik zasolenia, dzięki czemu jest preferowanym nawozem potasowym dla terenów zagrożonych zasoleniem gleby. Nawozy siarczanowe są najbardziej efektywne oraz przyjazne dla środowiska.

Potas jest makroelementem, który stanowi ok. 1% suchej masy roślin. Jest on aktywatorem ponad 50 enzymów, a przytym uczestniczy w osmoregulacji oraz pomaga w zachowaniu równowagi jonowej.

Objawy niedoboru potasu widoczne są w pierwszej kolejności na starszych liściach. Rośliny pobierają go pod postacią jonów K+. Jego najczęściej polecanym i stosowanym źródłem jest siarczan potasu (K2SO4). Zwykle stosuje się dawki od kilku do kilkunastu ppm/tydzień. W akwariach roślinnych, gdzie nie podaje się tego pierwiastka, istnieje duże prawdopodobieństwo wystąpienia niedoboru. Woda pochodząca z wodociągów jest wyjałowiona i zazwyczaj zawiera zbyt mało potasu w stosunku do zapotrzebowania roślin.

Przykładowe proporcje nawożenia akwarium:

- objętość akwarium - netto 100 litrów

- objętość przygotowanego roztworu - 500 ml

- ilość K2SO4 - 35g

- stężenie w akwarium po dodaniu 1 ml roztworu:

K - 0,314mg/l

SO4 - 0,129 mg/l