DESIGN OF AUTOMATIC DRIP IRRIGATION BASED ON CHANGE OF SOIL WATER CONTENT USING ARDUINO NANO MICROCONTROLLER

Authors

  • Rendy Pranata

DOI:

https://doi.org/10.23960/jtep-l.v4i1.%25p

Abstract

Formerly, most of Indonesian farmers only used a timer in an effort to set up drip irrigation scheduling. This
method is less effective in providing irrigation according to crop water requirement because it is only able to
arrange the provision of irrigation basedon a predetermined time interval only, so that the excess or lack ofwater
cant be controlled. This research makes an instrument which is able to overcome these problems, that is by
designing an automatic control systemonregulating the provision of irrigationwater in drip irrigation by using
amicrocontroller thatworks based onchange of soilwater content. The parameters observed inthis studyare the
change of soilwater content, irrigationflowrate, bulk density of soil, and dropper flowuniformity. This study uses
three types of growingmedium, i.e. sand, red-yellowpodzolic soil, andmix soil with organic nitrofosfat fertilizer.
Calibration tests showed a linear function, for sandmedium y = − 0.23x + 46.96 with percent error ± 5.22%, for
red-yellowpodzolic soil andmix soilwith organic nitrofosfat fertilizermediumy = − 0.71x + 104.07with percent
error ± 2.92%. The results showed that the automatic control system is able to work well, i.e. turn on the pump
when soilwater content drops belowthe criticalwater contentand turnoff the pumpwhen soilwater content rises
over the field capacity.

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Published

2015-05-01

Issue

Vol. 4 No. 1 (2015)

Section

Articles

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