Shifting patterns of consumption in urban communities to consume pesticide-free and clean vegetables encourage the development of hydroponic cultivation in urban areas. In hydroponic lettuce cultivation, resource efficiency in the production stage is vital to be implemented so that the profits of hydroponic farmer increase. This study aims to provide recommendations for a more efficient hydroponic system to increase the growth of lettuce plants. The research method used in this study was a complete randomized design consisting of five treatments that were replicated five times. The treatment consists of five types of hydroponic installation systems, namely: A = Nutrient Film Technique System (NFT), B = Deep Film Technique System (DFT), C = EBB and FLOW Systems (EFS), D = Aeroponic Systems (AS), and E = Floating Raft System (RFS). The parameters observed to measure the effectiveness of each system in increasing the growth of lettuce plants are plant height, leaf number, fresh weight, and shoot-root ratio. The observational data were then analyzed using analysis of variance at 5% significance level and Duncan’s test at 5% level. The results showed that the NFT hydroponic system of lettuce plants was 6%-10% more efficient compared to the floating raft system and DFT system in increasing yields.
The application of salt fertilizer to increase the productivity of lettuce in long term application will decline soil fertility. Implementation of totally organic farming in some region cannot increase productivity rapidly. The application of vermicompost combined with inorganic fertilizer is a solution to overcome decline lettuce production on the first time implementation of the organic farming system. This research aims to study the dose application of vermicompost on the growth of lettuce plant. The research conducted at Cisurupan-Garut West Java Province with altitude 1183 m above sea level from January to March 2018. The method used in this research is randomize block design with seven treatments (A = without vermicompost, B = 5, C = 10, D = 15, E = 20, F = 25, G = 30 t ha-1), and four replication. The growth parameter observed in this research was plant height, number of leaves, fresh plant weight, plant dry weight, and shoot-root ratio. The data observation parameter than analysed with variance analyse at five per cent signification level. The result of this research shows that the application of 5 t ha−1 vermicompost improves plant growth significantly.
Land use conversion in to settlements and agricultural land affect rainwater can not be infiltrate directly in to the soil. Cibiru District has large area with slope so that this region has high risk of erosion. Soil and water conservation activity through tree planting methode involving comunity services is startegic effort to overcome potential erosion hazzard and increase soil infiltration. The activity of Community services was held from July-August 2018 in Palasari sub-district which has slope 8-15%. This community services methode used in the form of tree planting workshop and supervision during the manintenance periode. This tree planting program was welcomed enthusiastically by the community. The comunity in Cibiru District is pro active in preservation trees, especially during the dry season.
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