Authentic samples of commercially produced organic and conventionally grown tomatoes, lettuces, and carrots were collected and analyzed for their delta15N composition in order to assemble datasets to establish if there are any systematic differences in nitrogen isotope composition due to the method of production. The tomato and lettuce datasets suggest that the different types of fertilizer com...

Combining photovoltaic panels (PVPs) and crops on the same land unit were recently proposed as an alternative to the conversion of cropland into photovoltaic plants. This could alleviate the increasing competition for land between food and energy production. In such agrivoltaic systems, an upper layer of PVPs partially shades crops at ground level. The aim of this work was to (i) assess the eff...

A previous survey of locally grown lettuce in Penang indicated high levels of helminths forming a ready source of infection and resulting from the use of night soil (Khairul Anuar and Ramachandran, 1977). A parallel study also showed the presence of Entamoeba coli and other protozoans in many samples (Khairul Anuar, pers. comm.). The aim of this study was to determine the levels of enteric bact...

ISHS III International Symposium on Soilless Culture and Hydroponics: Innovation Advanced Technology for Circular Horticulture Microorganisms in aquaponics: insights the composition of root microbiome lettuces varying age

AIMS We investigated the antimicrobial effectiveness of lemongrass essential oil on organic leafy greens, romaine and iceberg lettuces and mature and baby spinach, inoculated with Salmonella Newport. The influences of exposure times and abuse temperatures on bacterial survival were also investigated. METHODS AND RESULTS Leaf samples were washed, inoculated with Salm. Newport (6-log CFUml(-1) ...

Lettuce (Lactuca sativa L.) is extensively grown and is the most widely used food crop for the called “Fourth Range” of vegetables. Lettuce exhibits healthy properties mainly due to the presence of antioxidant compounds (vitamins C and E, carotenoids, polyphenols) alongside significant fibre content and useful amounts of certain minerals. Lettuce can establish a mutualistic association with arb...

The study aims to investigate the removal of nutrients, organic pollutants and fecal bacteria from greywater while evaluating growth yields lettuce using hydroponic system. Lettuces grow in systems irrigated with untreated greywater, fresh well water, separately. Nutrients, pollutants, dishwashing were monitored. Agronomical microbiological parameters investigated. results showed that efficienc...

Abstract IoT makes it possible to automatically adjust pH based on sensor numerical data for NFT hydroponic lettuce. In this research, we use sensors of light intensity, farm temperature , humid reservoir level the outside farm, at Kartika Farm and Turus Asri. Data were taken five cropping periods. We got different adjustment pattern these Total Dissolved Solids (TDS) control. Furthermore, Farm...

Urban community gardeners employ a range of best practices that limit crop contamination by toxicants like lead (Pb). While Pb root uptake is generally low, the relative significance various deposition processes and effectiveness in reducing these have not been sufficiently characterized. This study compared leafy lettuce (Lactuca sativa) grown high (1150 mg/kg) low (90 soils, under three diffe...

Efficient use of irrigation water is crucial to face the uncertain trend a declining resource. Ensuring supply that matches crop evapotranspiration (ETc) while optimizing soil moisture challenging. This study aimed come up with model an system can immediately meet ETc without using electricity. To test proposed balance trial was established in lettuces. The consisted 15 pots connected serial pi...