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[APD] K+ Deficiency Symptoms - Scott?
SH: "Although 1-2 ppm is not far off from what a few seem to
recommend for K. My plants get mad if I don't give them about ten
times that amount."
Scott - When your plants "get mad" do they show the potassium
deficiency symptoms like these:
http://www.thekrib.com/Plants/Fertilizer/nutrient-deficiency.html
"Potassium: Old Yellow areas, then withering of leaf edges and
tips"
"Potassium: Small dead areas appear in older leaves. These can
start like little pinpoints and grow. In some species, like
Ceratopteris, the older leaves stay green while the little dead
spots grow. The new leaves are reduced in size and leaf area,
looking a bit 'singed'. In other species the older leaves can
turn yellow before they die, but they do not have green
persisting along the major veins as in magnesium deficiency."
The reason I ask, is that I'm pretty sure I'm way overdosed on K+
and I'm going to stop dosing for a while. I remember some recent
'haze' episodes in the water after water changes, which is when I
dose ferts. I'm wondering if there is so much K+ that it is
precipitating itself or other things out of the water. I'll start
K2SO4 up again when -my- plants "get mad". ;-)
TW
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