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. 2023 Feb 7;12(4):728. doi: 10.3390/plants12040728

Table 1.

The effect of NHAs addition on the acidity of liquid fertilizer mixtures.

Tr. Additive UAN AS Urea AN
1 - - 7.70 5.18 8.82 4.58
2 acid NHA 100:1 7.26 3.25 3.74 2.34
3 neutral NHA 100:1 7.60 4.65 5.39 4.35
4 acid NHA 100:2 5.29 3.06 3.52 2.18
5 neutral NHA 100:2 7.58 4.60 5.30 4.38

NHA—natural hydroabsorbent; UAN—urea ammonium nitrate; AS—solution of ammonium sulphate; Urea—urea solution; AN—solution of ammonium nitrate.