Prasetya, Budi (2019) Sistem otomasi pemberi larutan nutrisi pada tanaman tomat dengan hidroponik drip. Undergraduate thesis, Fakultas Teknik Universitas Merdeka Malang.

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Abstract

Tomato plants are one of the many agricultural commodities needed by
the community. Most farmers grow tomatoes in conventional ways in the fields,
fields or plantations without the control and measurement relying on experience
and habitual factors, so the need for pH and temperature of the planting space of
tomato plants cannot be given according to their needs, while the pH requirements
of tomato plants range from 4 , 5 to 6.5 and the planting room temperature is 23 °
C to 32 ° C, and soil moisture is 25% - 75%, using the hydroponic drip planting
method which is automatically controlled by the Arduino-based microcontroller
with the application of fuzzy mamdani making it easy to do pH setting of planting
media using soil pH sensor as input and temperature of planting room using LM35
temperature sensor, and soil moisture sensor using humidity sensor fc28, as the
system output fan and selenoid valve are used. To find out plant nutrition, one of
the indicators is the pH value of soil media, room temperature and humidity of the
planting medium.Tomato plants whose nutrients are automatically controlled using
the fuzzy mamdani method can produce more fruit, which is 24 fruits with a plant
height of 75cm compared to plants without using tools, only 14 pieces with a height
of 64cm. And it was found to be sweeter at 7.6% compared to only 5.2%.

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