Interacciones nutrimentales y normas de la técnica de nutrimento compuesto en nopal
There is a lack of basic knowledge on nopal cactus nutrition that would help to increase its productivity. In this context, we used the technique of Compounded Nutrient Diagnosis (DNC) to define preliminary norms for nutrition in nopal cactus (Opuntia ficus-indica L. Miller), based on the cubic rela...
| Autores: | , , , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2006 |
| País: | México |
| Recursos: | Universidad Autónoma de Zacatecas |
| Repositório: | Repositorio Institucional Caxcán |
| Idioma: | espanhol |
| OAI Identifier: | oai:http://ricaxcan.uaz.edu.mx:20.500.11845/947 |
| Acesso em linha: | http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/947 https://doi.org/10.48779/gedb-bn71 |
| Access Level: | Acceso aberto |
| Palavra-chave: | CIENCIAS AGROPECUARIAS Y BIOTECNOLOGIA [6] nutrición diagnóstico nutrimental sinergismos antagonismos distribución χ2 |
| Resumo: | There is a lack of basic knowledge on nopal cactus nutrition that would help to increase its productivity. In this context, we used the technique of Compounded Nutrient Diagnosis (DNC) to define preliminary norms for nutrition in nopal cactus (Opuntia ficus-indica L. Miller), based on the cubic relation between yields and accumulated variance proportion functions, as well as the χ2 distribution function of global nutrition indices. We considered a database that included 180 yield observations (as cladode fresh weight per plant) and the of N, P, K, Ca and Mg concentrations (%) in one-year-old cladodes. Biomass yield of nopal cactus depends significantly on N (P≤0.01), K (P≤0.05) and Mg (P≤0.05) concentrations. We observed the following significant synergisms: P-K (P≤0.05), K-Mg (P≤0.01) and Mg-Ca (P≤0.01); and the antagonisms: N-Ca (P≤0.01) y N-Mg (P≤0.05). The DNC preliminary proposed norms expressed as logarithms of the centered proportions (mean ± standard deviation) for d = 5 nutrients, based on a high-yielding (more than 46.7 kg·plant-1 nopal cactus cladodes grown in a calcareous soil) sub-population (n = 57) are: * NV = -0.98 ± 0.35, * PV = -2.23 ± 0.21, * VK = 0.25 ± 0.19, * VCa = 0.37 ± 0.35, * VMg = -0.71 ± 0.17, and * Rd V = 3.29 ± 0.09. These norms correspond to the following ranges of optimal concentrations (mean ± standard deviation) in the cladodes: 1.29 ± 0.47 of N (%), 0.36 ± 0.08 of P (%), 4.24 ± 0.88 of K (%), 4.96 ± 1.73 of Ca (%) and 1.61 ± 0.27 of Mg (%). Nopal cactus concentrates more than four times K and Ca than N, proving that it is a calcitrophic plant. Something similar occurs between Mg and P, because the former is four times higher in concentration than the latter. |
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