15
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      LODOS RESIDUALES DE NEJAYOTE COMO SUSTRATOS PARA LA GERMINACIÓN DE SEMILLAS DE MAÍZ AZUL CRIOLLO Translated title: RESIDUAL SLUDGE FROM “NEJAYOTE” AS SUBSTRATES FOR THE GERMINATION OF NATIVE BLUE MAIZE SEEDS

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          RESUMEN Se evaluaron lodos del nejayote crudo (LNC) y lodos del nejayote tratado por coagulación/floculación (LNCF) como sustratos para la germinación de maíz azul proveniente de Amozoc de Mota, Puebla. Se estudiaron las características físicas y químicas de los LNC y LNCF para diferenciar sus propiedades. Se prepararon cuatro sustratos con distinto contenido de lodo y suelo: LNC25 y LNC50 con LNC; LNCF25 y LNCF50 con LNCF. El contenido de lodos en los sustratos fue de 25 y 50 % en masa, respectivamente. Se usó suelo de la región (S) como referencia. El diseño experimental consistió en bloques al azar con cinco repeticiones de los cinco sustratos. La funcionalidad de los sustratos para la germinación se determinó con el porcentaje de germinación (PG) de 11 a 25 días después de la siembra (dds). Los datos se analizaron mediante varianza unifactorial y multifactorial. Los resultados muestran que a los 25 dds los PG del maíz fueron mayores o iguales que 62.5 ± 9.4 % en los diferentes sustratos. Con el sustrato LNC50 se obtuvieron PG > 90 % de 15 a 25 dds, presentando diferencias significativas respecto a los demás. Por su bajo contenido de materia orgánica, los sustratos LNC25, LNCF25 y LNCF50 requirieron mayor tiempo para alcanzar los PG obtenidos con S. La concentración óptima de lodos y S junto con el contenido de materia orgánica posibilitan el aprovechamiento de lodos de nejayote para la germinación de maíz azul.

          Translated abstract

          ABSTRACT Sludge obtained from raw nejayote (RNS) and sludge obtained from nejayote treated by coagulation/flocculation (SNCF) were evaluated as substrates for the germination of blue maize from Amozoc de Mota, Puebla. The RNS and SNCF were extracted by filtration and characterized in order to differentiate their physical and chemical properties. Four substrates were prepared with different soil and sludge contents: RNS25 and RNS50 with RNS; SNCF25 and SNCF50 with SNCF. The sludge content in the substrates was 25 and 50 % by mass, respectively. Soil of the region (S) was used as reference. The experiment was carried out under an experimental design of random blocks, with five replications of the five substrates. The functionality of the substrates for germination was determined with the germination percentage (GP) between 11 and 25 days after sowing (das). Data were analyzed with unifactorial and multifactorial ANOVA. The results show that at 25 das the GPs of maize were greater than or equal to 62.5 ± 9.4 % in the different substrates. GPs > 90 % were obtained with the RNS50 substrate from 15 to 25 das, showing significant differences compared to the other substrates. Due to their low organic matter, the substrates RNS25, SNCF25 and SNCF50 required a longer time to reach the GP obtained with S. The optimum concentration of sludge and S, together with the organic matter content, enable the use of nejayote sludge for the germination of blue maize.

          Related collections

          Most cited references28

          • Record: found
          • Abstract: found
          • Article: not found

          Agricultural utilization of biosolids: A review on potential effects on soil and plant grown.

          Environmental and economic implications linked with the proper ecofriendly disposal of modern day wastes, has made it essential to come up with alternative waste management practices that reduce the environmental pressures resulting from unwise disposal of such wastes. Urban wastes like biosolids are loaded with essential plant nutrients. In this view, agricultural use of biosolids would enable recycling of these nutrients and could be a sustainable approach towards management of this hugely generated waste. Therefore biosolids i.e. sewage sludge can serve as an important resource for agricultural utilization. Biosolids are characterized by the occurrence of beneficial plant nutrients (essential elements and micro and macronutrients) which can make help them to work as an effective soil amendment, thereby minimizing the reliance on chemical fertilizers. However, biosolids might contain toxic heavy metals that may limit its usage in the cropland. Heavy metals at higher concentration than the permissible limits may lead to food chain contamination and have fatal consequences. Biosolids amendment in soil can improve physical and nutrient property of soil depending on the quantity and portion of the mixture. Hence, biosolids can be a promising soil ameliorating supplement to increase plant productivity, reduce bioavailability of heavy metals and also lead to effective waste management.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Propiedades, uso y manejo de sustratos de cultivo para la producción de plantas en maceta

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Norma Oficial Mexicana NOM-021-RECNAT-2000. Que establece las especificaciones de fertilidad, salinidad y clasificación de suelos. Estudios, muestreo y análisis

              (2000)
                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rica
                Revista internacional de contaminación ambiental
                Rev. Int. Contam. Ambient
                Centro de Ciencias de la Atmósfera, UNAM (México, DF, Mexico )
                0188-4999
                2018
                : 34
                : 3
                : 395-404
                Affiliations
                [1] Tetela orgnameBenemérita Universidad Autónoma de Puebla orgdiv1Instituto de Ciencias orgdiv2Posgrado en Manejo Sostenible de Agroecosistemas Mexico
                [2] Tetela orgnameBenemérita Universidad Autónoma de Puebla orgdiv1Instituto de Ciencias orgdiv2Centro de Agroecología Mexico
                [3] Puebla orgnameBenemérita Universidad Autónoma de Puebla orgdiv1Instituto de Ciencias orgdiv2Centro de Química y Posgrado en Ciencias Ambientales Mexico
                Article
                S0188-49992018000300395
                10.20937/rica.2018.34.03.03
                4c9685b8-333a-4269-8b44-75b34cdaf53e

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 01 November 2017
                : 01 May 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 37, Pages: 10
                Product

                SciELO Mexico

                Categories
                Artículos

                nixtamalization,coagulation/flocculation,Zea mays L.,organic matter,wastewater,sandy soils,nixtamalización,coagulación/floculación,materia orgánica,agua residual,suelos arenosos

                Comments

                Comment on this article