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.

From: Variations in nutrient and trace element composition of rice in an organic rice-frog coculture system

Ā Ā 

2013

2014

CR

ORF

CR

ORF

mg kgāˆ’1

mg kgāˆ’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