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Lactuca sativa commonly known as lettuce is a food that provides few calories due to its high water content and fewer carbohydrates, proteins and fats. The main problem with this crop is that during its cycle it is attacked by a range of fungi (Fusarium spp., Pythium sp., Alternaria alternata., among others) and bacteria (Erwinia sp, Burkholderia sp, among others); this leads to excess use of pesticides, economic losses and damage to the environment. Therefore, sustainable control strategies are sought to mitigate the spread of diseases and stimulate the optimal development of the plant. Ecofungicides were made based in: Ricinus communis “higuerilla”; Chamaemelum nobile “manzanilla” with Allium sativum “ajo”; Ruta graveolens “ruda”; as well as Bordeaux broth as a craft product and a synthetic product. The randomized complete block experimental design and the Tukey multiple means comparison (p≤0.05) showed tha in Ricinus communis based ecofungicide favors, on average, the height per plant (18.89 cm), the diameter per plant (36.29 cm); the number of leaves per plant (15.50 cm), the leaf width (19.85), the leaf length (17.76 cm) and therefore, a final weight of 1.43 kg per healthy plant was reported. It´s concluded that higuerilla treatment at a dose of 0.33 ml in 1 liter of water increases the productivity of Lactuca sativa L. and decreases the incidence of phytopathogenic fungi.

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Se evaluó la remoción de iones de cadmio (Cd2+) a partir de una disolución acuosa sobre cantera Blanco Cancún y Tezontle rojo, utilizando una fracción >2000 μm, a 23 °C bajo condiciones dinámicas en un lecho empacado. Se investigó el porcentaje de extracción de cadmio mediante cinéticas de adsorción, y con ello se calculó la capacidad de adsorción total y el tiempo de vida útil de la columna de sorción. Se utilizó un flujo volumétrico de 0.3 ml s-1 y una concentración inicial de 861.75 mg L-1, a un pH de 7.5. La cantera Blanco Cancún reporta un porcentaje máximo de extracción (%E) de 99.59 al primer minuto de contacto, en comparación con el tezontle que reporta %E=83.78 al mismo tiempo. Sin embargo, la capacidad de adsorción total fue de 3.60 mg y 6.62 mg respectivamente. El tiempo de vida útil de la columna sugiereusar al tezontle como adsorbente.

Tejocote has been used traditionally in Mexico since Pre-Hispanic times and currently its cultivation it is considered of lesser economic importance, is distributed mainly in the States of Mexico, Puebla, Tlaxcala, Chiapas, Michoacán, Hidalgo and Morelos. The tejocote groups together more than 150 species around the world, these 93 types are in Mexico, further studies in this species are scarce. Therefore this research was the analysis of physical and chemical strains of tejocote at the Universidad Politécnica de Francisco I. Madero. The results show that the criolla variety possesses a 65.64% humidity, on the other hand the highest percentage of protein was obtained in Calpan gold variety (3.80%), for the ether extract the criolla variety has a 41.11% fiber, criolla variety was the one that obtained the highest percentage (16.71%), °Brix criolla variety presented the higher value, which present greater weight was the Chapeado variety. This results will be a contribution to the added value given to these.