PENGENDALI SUHU DAN KELEMBABAN PADA TANAMAN SELADA (Lactuca sativa L) DENGAN SISTEM AEROPONIK BERBASIS ARDUINO UNO R3
Abstract: Lettuce cultivation
(Lactuca sativa L.) in Indonesia until now still using the method of planting
in open land that has many obstacles and requires a large enough land. The
impact is the disruption of crop growth that affects the productivity and
availability of land required. To overcome it can be applied a method of
aeroponic cultivation of plants with a vertical system that avoids plants from
pests and can save places for planting. Cultivation of plants with aeroponic
system makes it easier for us to control the variables needed by lettuce plants
such as temperature and humidity. The aim of this reasearch is to design the
air and humidity control system in aeroponic media in the range needed by the
lettuce plant, that is at a temperature of 25 oC to 28 oC and humidity in the
range of 65% to 78%. For the measurement of ambient temperature and humidity of
the environment can be selected sensor DHT11. DHT11 has a calibrated digital
output, connected directly to the Atmega32P microcontroller in board Arduino
Uno R3, and the driver as a switch for the pump and fan.When temperature
>28oC then the pump will be turn on and when the humidity >79% then the
fan will turn on, control systems work on-off. From the two media tested that
is media A (with the controller) and media B (without the controller), Lettuce
plants in media A grow with an average plant height increase of 1.6 cm and can
be consumed, while Lettuce plant in medium B grows with an average plant height
increase of 0.42 cm and experiencing crop failure, with leaves withered, thus
Lettuce on media A managed to grow well, while Lettuce on media B died on the
19th day, so that research with controlling device better than conventional
planting.
Penulis: Martha Vira Sariayu
Kode Jurnal: jptlisetrodd170061
