Table 5.
The effects of CR and ORF cultivation patterns on the micronutrient availabilities in the soil (extracted with 1 M ammonium acetate), concentrations in the shoot and seed at 2013 and 2014. In the table, calculated by ANOVA with Tukey test (p < 0.05), differences between treatments were significantly representing by bold-filled column on the mean ranks with letters (a-b). CR: conventional rice planting system; ORF: organic rice-frog coculture system.
| 2013 | 2014 | ||||
|---|---|---|---|---|---|
| CR | ORF | CR | ORF | ||
| mg kg−1 | mg kg−1 | ||||
| Mn | Soil | 35.59a | 15.50b | 35.80a | 19.13b |
| Straw | 489.63a | 527.49a | 987.91a | 1138.29a | |
| Grain | 32.28a | 34.00a | 47.55a | 46.07a | |
| Fe | Soil | 1.02b | 1.78a | 1.77b | 2.94a |
| Straw | 153.27b | 239.12a | 299.57b | 443.36a | |
| Grain | 9.49a | 9.40a | 17.97b | 26.51a | |
| Cu | Soil | 0.11a | 0.11a | 0.12a | 0.13a |
| Straw | 2.72a | 3.24a | 4.64a | 4.19a | |
| Grain | 3.57a | 3.43a | 3.48a | 3.79a | |
| Zn | Soil | 0.16b | 0.30a | 0.73b | 1.45a |
| Straw | 24.26b | 35.52a | 54.50a | 57.92a | |
| Grain | 21.53b | 27.43a | 23.22b | 29.54a | |
| Mo | Soil | 0.013b | 0.019a | 0.007b | 0.015a |
| Straw | 0.80a | 1.03a | 0.90b | 1.88a | |
| Grain | 0.26b | 0.47a | 0.48b | 0.89a | |
| B | Soil | 0.15a | 0.11a | 0.95a | 0.92a |
| Straw | 2.10a | 3.05a | 8.19a | 7.26a | |
| Grain | 0.80a | 0.55a | 6.60a | 6.57a | |
| Ni | Soil | 0.056a | 0.54a | 0.095a | 0.11a |
| Straw | 0.76a | 1.36a | 4.40a | 4.09a | |
| Grain | 0.16a | 0.27a | 0.40a | 0.48a | |