Memahami artikel hydroponics

www.explainthatstuff.com/hydroponics.html

What is hydroponics?
Plants grow through a process called
photosynthesis , in which they use sunlight and a
chemical inside their leaves called chlorophyll to
convert carbon dioxide (a harmless gas in the
air) and water into glucose (a type of sugar)
and oxygen. Write that out chemically and you
get this equation:
6CO 2 + 6H 2 O → C 6 H 12O 6 + 6O 2
There's no mention of "soil" anywhere in there—
and that's all the proof you need that plants
can grow without it. What they do need is water
and nutrients, both easily obtained from soil.
But if they can get these things somewhere
else—say, by standing with their roots in a
nutrient-rich solution—they can do without soil
altogether. That's the basic principle behind
hydroponics. In theory, the word "hydroponics"
means growing plants in water (from two Greek
words meaning "water" and "toil"), but because
you can grow plants without actually standing
them in water, most people define the word to
mean growing plants without using soil.

# Apa itu hidroponik?
Tanaman yang tumbuh melalui proses
fotosintesis, di mana tanaman itu menggunakan sinar matahari dan
bahan kimia, yang terkandung dalam daun sering disebut dengan
klorofil yang berfungsi untuk  mengubah karbon dioksida (gas berbahaya di udara) serta air di ubah menjadi
glukosa dan oksigen. Penulisan
persamaan reaksi kimia:
6CO 2 + 6H 2O → C 6H 12 O 6 + 6O 2.

Yang terjadi dalam reaksi diatas tidak perlu menggunakan tanah sebagai media fotosintesis.
Jadi, dalam penanaman hidroponik media tanah tidak dibutuhkan, yang dibutuhkan hanya air dan nutrisi.
Itulah dasar
Prinsip di balik hidroponik. Secara teori,
Kata "hidroponik" berarti tanaman yang tumbuh di
air (dari dua kata Yunani yang berarti
"air" dan "bekerja keras"), kebanyakan orang mendefinisikan kata hidroponik yang berarti
tumbuhan yang di tanam tanpa menggunakan media tanah.