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Does Soil Liming Compensate for Low Organic Matter Content: a Comparison Between Substrate Prepared by Farmers and Limed Soil for Growth of Coffee Seedlings (Coffea arabica)

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Abstract

The purpose of this study is to test the hypothesis that farmer-prepared substrate is superior alternative to liming for growing higher-quality coffee seedlings in highly acidic soils. A completely randomized design was applied to compare the growth of coffee seedlings using seeds of Coffea arabica L. var. Colombia yellow fruit. Treatments were control soil (Control-t) prepared with soil from a local coffee plot (pH = 3.99), limed soil (Limed-t) prepared by mixing control soil and lime with a pH adjusted to 7.0, and substrate prepared by farmers (OM-t) with a pH of 7.0. Growth variables and the Dickson quality index (DQI) were measured. Plant height, canopy cover, leaf number, stem diameter, leaf area, distance between nodes, primary root length, and dry secondary root and stem biomass showed the highest and statistically similar values in OM-t and Control-t compared to Limed-t. Differences between treatments were as follows: dry leaf biomass in OM-t was 1.41 times higher than in Control-t and 2.84 times higher than in Limed-t and dry primary and secondary root biomass in OM-t was 1.68 and 2.24 times higher than in Control-t and 3.08 and 4.3 times higher than in Limed-t, respectively. The DQI was higher in plants in OM-t followed by plants in Control-t and Limed-t, respectively. There was superior growth and seedling quality in the substrate prepared by farmers compared to the acid soil amended with lime. The acid soil from the field limited leaf and root biomass, although it produced plants of acceptable quality. Liming as a means of correcting soil acidity and promoting better nutrient availability was insufficient to offset the mineral deficiencies in the soil.

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Reasonable requests for the datasets from this study will be honored by the corresponding author.

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Acknowledgements

Thanks to the National Council of Science and Technology for granting a scholarship that allowed the necessary technical support to carry out this research. Also, thanks to the authorities of the Facultad de Biología of the Universidad Veracruzana in Xalapa, Veracruz, México, for providing its facilities to set up the experiment and to the Biologist Luis Salvador Hernández Aragón for supporting the technical tasks for setting up the experiment, monitoring the plants during the experiment, measuring, and capturing data. We also thank the MSC. Luz Maritza Sierra Fandiño for her valuable support in the physicochemical analysis of the farmers’ substrate Finally, we thank the academic group Structure and Functioning of Ecosystems (CAUVER-324).

Funding

Partial financial support was received from the Universidad Veracruzana through a scholarship within the “Support Scholarship for the National System of Researchers” program with project code 41504, fund 912, and item no. 6520.

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J.A.G.P. and E.A.G. conceived and designed the study, carried out the experiments, contributed to sample and data collection, planned, and carried out the data analyses, interpreted the results, wrote the manuscript, and provided critical feedback.

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Correspondence to José Antonio García-Pérez.

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García-Pérez, J.A., Alarcón-Gutiérrez, E. Does Soil Liming Compensate for Low Organic Matter Content: a Comparison Between Substrate Prepared by Farmers and Limed Soil for Growth of Coffee Seedlings (Coffea arabica). J Soil Sci Plant Nutr 23, 5871–5886 (2023). https://doi.org/10.1007/s42729-023-01446-6

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  • DOI: https://doi.org/10.1007/s42729-023-01446-6

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