1. Efecto de la gallinaza sobre la fertilidad de un suelo cultivado con cacao (Theobroma cacao) en Ecuador.
- Author
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Agustín Vera Loor, Amstrong Edison, María Martínez, Luz, Colás Sánchez, Ariany, and Reyes Hernández, Alfredo
- Subjects
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COCOA , *PEARSON correlation (Statistics) , *POULTRY manure , *SUSTAINABLE agriculture , *CACAO , *SOIL quality , *SOIL drying , *SOIL fertility , *STATISTICAL correlation , *TILLAGE , *CACAO beans - Abstract
The research was carried out in El Carmen canton, Manabí province, Ecuador. The objective was to evaluate the effect of levels of poultry manure on the chemical properties of an Inceptisol soil dedicated to the production of fine aroma cocoa (Theobroma cacao L.) with the use of corn (Zea mays L.) as indicator plant. Soil samples were taken in 2017 with a completely randomized design and levels 0, 2, 4, 4, 6 and 8 t ha-1 to be applied per 1.5 kg pots of soil. Comparisons of means were performed according to Tukey's test for p≤0.05 and Pearson’s correlation matrix with the statistical processors SPSS, Statistics (Version 19.0 on Windows) and STAHTGRAPHICS Plus, version 5.0. The best level of poultry manure was 6 t ha-1 since the highest pH value (water) and the lowest acidity of change, the highest Ca/Mg ratio and the highest percentage of organic matter were achieved in the soil, and the best foliar nutrient contents (%), Ca/Mg ratio and total dry matter were achieved in the plant. The results showed positive correlations between the percentage of organic matter, foliar Ca/Mg ratio and root dry matter, and between assimilable phosphorus contents in the soil and total dry matter. [ABSTRACT FROM AUTHOR]
- Published
- 2022