what are the target ranges, in ppm for plant ferts? for K, iron, etc...
From Thomas Barr et al's (as Tom insists :wink "The Estimative Index", the target ranges are as follow:jdigiorgio said:what are the target ranges, in ppm for plant ferts? for K, iron, etc...
Just to f/u on above formula, some calculations done by Ghazanfar.cS said:Recently, the NPK ratio of 10:1:10 has gained popularity. Note that's NITROGEN not NITRATE (NO3) & PHOSPHORUS not PHOSPHATE (PO4) that are represented in the ratio