Organic Nutrient Solutions in Production and Antioxidant Capacity of Cucumber Fruits

Effect of Different Substrates and Nutrient Solutions on Vegetative Growth, Mineral Content, Production and Fruit Quality of Strawberry

“…Higher total acidity is not a desirable property, where strawberry fruits with low total acidity and heavy metals (lead and nickel) are considered high quality fruits. In contrast to these results Santiago-López et al (2016) recorded a higher antioxidant capacity for organic cucumber as compared to plants fertilized using inorganic nutrient solution. Herms and Mattson, (1992) stated that plants produced higher amounts of sugars (simple and complex) and secondary metabolites (pigments, vitamins, organic acids, terpenoides and phenolic compounds) when subjected to a deficit of soluble nitrogen supply.…”

“…Adding water might reduce the nutrient element concentrations in these solutions. Similarly, Santiago-López et al (2016) obtained lower yield, weight and size of organic produced cucumber compared to inorganically one and they mentioned that it could be attributed to the low nutrient concentration of organic fertilizer solutions. Gutiérrez-Miceli et al (2008) revealed that low nutrient concentration in organic solutions resulted from the solutions dilution in order to avoid phytotoxicity in plants.…”

“…In this respect, Márquez-Quiroz et al (2014) reported that not only the low nutrient concentration but also the imbalanced nutrient ratios in the nutrient solutions affect the normal plant growth; thereby regularly result in a lower size and weight of fruits. Santiago-López et al (2016) attributed the lower fruit weight and size in cucumber produced under the organic treatments mostly to the nitrogen deficit since it is known that an insufficient nitrogen supply during crop growth and development affects negatively vegetable and fruit yield, size and weight. Abol-Soud et al (2015) also indicted that the concentrations and the balance among the elements of the mineral nutrition played a vital role in the highest results of vegetative, yield and quality characteristics as well as N, P and K contents of strawberry leaves compared to the composition of vermi and animal compost-tea that had significant available amounts of plant nutrients but not in balance to meet strawberry requirements.…”

Compost Tea Quality and Fertility

“…These findings were supported by Mohd Din et al [14] who reported nonconsequential effects between aerated and non-aerated extraction of compost tea on pak choi performance. Increasing yields and plant performance traits from foliar and soil application of compost teas were further reported for pepper [7], navel orange [15], tomato [16] and cucumber [17]. The occurrence of combined suppressive and biostimulatory mechanisms, sustained by microbial communities, nutrient supply and carbon-based bioactive compounds, is assumed to underlie the positive effects [16].…”

Inoculación de rizobacterias promotoras del crecimiento vegetal en tomate (Solanum lycopersicum L.) cv. afrodita en invernadero

“…En la actualidad los productores están interesados en la búsqueda de nuevos sistemas de producción que incrementen los rendimientos y generen productos de excelente calidad (Santiago-López et al, 2016). Debido a lo anterior han surgido insumos agrícolas con base en microorganismos y otros materiales de origen orgánico, por ejemplo las rizobacterias promotoras del crecimiento vegetal (RPCV) (Kloepper y Schroth, 1978) y los sustratos a base de compost (Raviv, 2015), como opciones que fortalecen el enfoque de la agricultura sustentable (Pretty, 2008).…”