Plants only take up nutrients in the water surrounding the plant roots, so for nutrients to be available to plants, they must be in a soluble form.
(the water; surrounding; the plant roots) (they; must be; in a soluble form) Context(they must be,List([116, 128))):(Plants; only take up; nutrients; L:in the water)
they must be,List([116, 128))
the water they Plants
surrounding must be only take up
the plant roots
in a soluble form
nutrients L:in the water