These are the most frequently used words in this book.
100
1986
1995
1996
1997
air
al
although
based
between
ca
characteristics
chemical
color
concentration
conditions
content
control
crop
culture
days
deficiency
described
development
disease
elements
essential
et
factors
fertilizer
field
figure
first
flower
form
found
fresh
fruit
garden
given
green
greenhouse
growing
grown
growth
high
home
hydroponic
insects
irrigation
lb
leaf
leaves
level
light
low
major
market
may
medium
mg
number
nutrient
occur
organic
per
pest
ph
plant
potassium
procedures
production
quality
range
root
seed
seedling
should
size
small
soil
solution
source
stage
states
symptoms
system
table
temperature
time
tissue
tomato
tomatoes
type
united
use
used
varieties
water
yield