Spatial Distribution and Temporal Variability of Ammonium-Nitrogen, Phosphorus, and Potassium in a Rice Field in Corrientes, Argentina

Table 1

Mean ± standard deviation for pH and Eh at three sampling dates and on three different lime treatments. (Mean values followed by a diffferent lowercase letter in the column and different capital letter in the row are significantly different).

Dolomite	1st sampling; (before sowing)	2nd sampling; (day 28)	3rd sampling; (day 56)
pH
0 kg ha^−1	4.2 ± 0.09^aA	5.7 ± 0.28^bB	6.6 ± 0.24^cC
620 kg ha^−1	4.3 ± 0.07^aA	5.8 ± 0.30^bB	6.7 ± 0.22^cC
1250 kg ha^−1	4.4 ± 0.07^aA	5.9 ± 0.24^bB	6.8 ± 0.12^cC
Eh (mV)
0 kg ha^−1	554.4 ± 7.4^aA	−16.4 ± 19.7^aB	−186.2 ± 31.9^aC
620 kg ha^−1	539.7 ± 10.6^aA	−25.8 ± 15.5^bB	−189.5 ± 29.7^aC
1250 kg ha^−1	532.4 ± 10.6^aA	−30.1 ± 13.5^bB	−210.3 ± 31.1^bC