Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils
Abstract
:1. Introduction
2. Results
2.1. Soil N Mineralization Rates and Soil Respiration Rates
2.2. Eucalyptus Growth
2.3. N Accumulation in Eucalypt Plants
3. Discussion
3.1. Effect of Acacia Trees on N-Mineralization Rates
3.2. Effect of Acacia Trees on N Bioavailability for Eucalyptus Cultivation
4. Materials and Methods
4.1. Site Description
4.2. Soil Sampling
4.3. Measurement of Soil Respiration
4.4. Bioassay
4.5. Chemical Assays
4.6. Data Analysis
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Fertilization and Original Vegetation | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
−Fert | +Fert | Two-Way ANOVA | ||||||||
Variable | Organ | Ac | Euc | Nat | Ac | Euc | Nat | Veg | Fert | Veg × Fert |
dwt (g/plant) | Roots | 1.05 b (0.16) | 0.56 b (0.14) | 1.14 b (0.34) | 2.17 a (0.32) | 2.60 a (0.87) | 2.57 a (0.79) | NS | *** | NS |
Stem | 0.18 b (0.04) | 0.16 b (0.05) | 0.35 b (0.20) | 1.04 a (0.27) | 0.93 a (0.10) | 0.87 a (0.35) | NS | *** | NS | |
Leaves | 0.41 c (0.03) | 0.39 c (0.11) | 0.66 bc (0.24) | 1.63 a (0.33) | 1.36 a (0.38) | 1.16 ab (0.47) | NS | *** | * | |
N conc. (mg/g dwt) | Roots | 6.25 b (1.60) | 6.69 b (2.07) | 6.67 b (1.84) | 9.37 ab (0.78) | 8.79 ab (1.30) | 12.70 a (5.04) | NS | *** | NS |
Stem | 4.42 cd (0.69) | 4.51 cd (0.52) | 3.43 d (1.42) | 8.40 bc (2.31) | 11.38 b (3.21) | 17.61 a (8.78) | *** | *** | *** | |
Leaves | 9.83 b (2.80) | 8.56 b (2.19) | 9.60 b (4.20) | 14.15 ab (4.86) | 22.21 a (4.37) | 22.60 a (7.40) | NS | *** | NS |
Fertilization and Original Vegetation | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
−Fert | +Fert | Two-Way ANOVA | ||||||||
Variable | Organ | Ac | Euc | Nat | Ac | Euc | Nat | Veg | Fert | Veg × Fert |
dwt (g/plant) | Roots | 0.73 ab (0.12) | 0.45 c (0.08) | 0.27 d (0.06) | 0.79 a (0.13) | 0.60 bc (0.14) | 0.57 bc (0.25) | *** | *** | * |
Stem | 1.2 b (0.13) | 0.54 c (0.06) | 0.31 d (0.04) | 1.77 a (0.26) | 1.54 a (0.20) | 1.15 b (0.29) | *** | *** | ** | |
Leaves | 2.27 b (0.16) | 1.10 c (0.16) | 0.65 d (0.05) | 3.00 a (0.48) | 2.28 b (0.60) | 2.15 b (0.37) | *** | *** | ** | |
N conc. (mg/g dwt) | Roots | 6.82 c (1.09) | 7.48 c (1.75) | 6.92 c (1.96) | 13.71 a (1.68) | 12.97 a (2.58) | 10.03 b (2.66) | * | *** | ** |
Stem | 2.44 c (0.68) | 2.76 c (0.98) | 3.03 bc (1.07) | 4.90 ab (2.76) | 5.09 ab (1.42) | 5.86 a (2.20) | NS | *** | NS | |
Leaves | 9.83 b (1.54) | 9.76 b (1.56) | 9.60 b (1.32) | 22.60 a (3.75) | 22.21 a (4.60) | 14.14 ab (3.53) | NS | *** | NS |
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Waithaisong, K.; Robin, A.; Mareschal, L.; Bouillet, J.-P.; Harmand, J.-M.; Bordron, B.; Laclau, J.-P.; Gonçalves, J.L.M.; Plassard, C. Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils. Plants 2023, 12, 802. https://doi.org/10.3390/plants12040802
Waithaisong K, Robin A, Mareschal L, Bouillet J-P, Harmand J-M, Bordron B, Laclau J-P, Gonçalves JLM, Plassard C. Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils. Plants. 2023; 12(4):802. https://doi.org/10.3390/plants12040802
Chicago/Turabian StyleWaithaisong, Kittima, Agnès Robin, Louis Mareschal, Jean-Pierre Bouillet, Jean-Michel Harmand, Bruno Bordron, Jean-Paul Laclau, José Leonardo Moraes Gonçalves, and Claude Plassard. 2023. "Potential of Bioassays to Assess Consequences of Cultivation of Acacia mangium Trees on Nitrogen Bioavailability to Eucalyptus Trees: Two Case-Studies in Contrasting Tropical Soils" Plants 12, no. 4: 802. https://doi.org/10.3390/plants12040802