If seeds have enough nutrients for 2-3 weeks, why do we see so many sprout issues?

[CrustyCruz]

Cannabis seeds might have enough P for 2-3 weeks but they only have enough calcium for a single day, if that.

​​​​​​Almost every seedling I've seen on this website is deficient in Calcium. Due to poor breeding practices this problem will increase over the next decade.


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[chiesesganja]

yes! I feel that too! they plant love calcium

 

[moose eater]

Some amount of calcium should be present, in my experience. but the age of the seeds also can diminish the amount of energy the plant has in the sprouting/seedling phase. Numerous times I've sprouted OLD (and I mean OLD, like 20 to 40+ years old) seeds, had a few pop, and then turn to mold just as the tail is emerging. I'm certain that those instances were a matter of diminished energy in the seeds/cotyledon.

 

[Creeperpark]

Since seeds require no external sources of nutrition to germinate, it’s not recommended to apply fertilizer to seeds. In fact, it can reduce germination rates. The chemical components of fertilizers are comprised mainly of different salts (calcium chloride, magnesium sulfate, ammonium nitrate, etc.). In too high amounts, these fertilizer salts can harm seeds and the first tender roots the same way they “burn” mature plant roots if overused. When a seed germanates and seed coat splits and the embryo or radicle touches the soil mix it takes what it needs. If the seed is deficient of calcium, it won't split the seed coat, however it the seed coat split, then it had enough.