Evaluación biológica de la fertilidad del suelo para la producción de papa en el barrio Simón Bolívar, perteneciente a la parroquia Chuquiribamba del cantón Loja.
The research was conducted in the Simón Bolívar sector in the Aguarongo - Zañe Irrigation System belonging to the Chuquiribamba parish. The slope of the soil is between 0-8%, 8-25% and >25%. Potato cultivation is established on these soils, with yields of 2.8 t ha-1. Producers apply fertilizers w...
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| Format: | bachelorThesis |
| Jezik: | spa |
| Izdano: |
2024
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| Online dostop: | https://dspace.unl.edu.ec/jspui/handle/123456789/30018 |
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Označite | Izvleček: | The research was conducted in the Simón Bolívar sector in the Aguarongo - Zañe Irrigation System belonging to the Chuquiribamba parish. The slope of the soil is between 0-8%, 8-25% and >25%. Potato cultivation is established on these soils, with yields of 2.8 t ha-1. Producers apply fertilizers without technical criteria and uncomposted organic matter (chicken droppings) to restore their crops' fertility. To determine the availability of nutrients, the Ecuadorian Soil Laboratory Network officially uses the Modified Olsen extractor solution. Several investigations from the National University of Loja conclude that there is no correlation between the available nutrients determined by the solution above and the missing element technique adapted by Valarezo in 1985. In the biological evaluation, N, P, Zn, and S turned out to be the deficient elements in the three soil units; N, P, K, Mg, S, Zn, Cu, Fe, and B did not present a correspondence between the weight of the dry biomass from the evaluation of the missing element versus the concentration of available nutrients from the chemical analysis in the three units of floor. The fertilization plan for slopes of 0-8%, 8-25% and >25%, proposes a dose of 1603.3 kg ha-1 ; 2493.9 kg ha-1; 3354.4 kg ha-1 of Calpac (36% CO3; 10% MgO; 26% SO4) respectively to increase soil pH and neutralize Al+3. And an application of nutrients for potato cultivation: N:175; Q:70; K:284; Ca:113; Mg:113; S:123; Zn:6; B:2; kg ha-1 |
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