Crops Produced Using High Tunnels - CRAAQ
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1
La venue de ce conférencier a été d ibl â tirendue possible grâce au soutien
financier du ministère de l’Agriculture, des Pêcheries et de l’Alimentation
Crops Produced Using High Tunnels
2
What are some crops being grown within high tunnels?
20
30
40
50
60
70
No. re spond ents
0
10
20s
Tomatoes
Cucurbits
Peppers
Salad Greens
Spinach
Green Beans
Beets
Brassicas
Carrots
Onions
Peas
Potatoes
Strawberries
Herbs
Cut Flow
ers
Source: 2004-07 Central Great Plains High Tunnel Survey
2004 2008
020406080
100
Res
pons
e %
1
2 34
0 Tom
ato
SaladG
reens
Solanums
Berries
Cut
Flowers
3
Determinate Tomatoes
40 inch (1.2 m) 40 inch (1.2 m) canopy heightcanopy height
Indeterminate Tomatoes
72 inch (1.8 m) canopy 72 inch (1.8 m) canopy heightheight
‘Big Beef’
10
Growers indicate production issuesGrowers indicate production issues::
60
%)
2004 2006 2008
0
10
20
30
40
50Pr
opor
tion
of
resp
onde
nts (
%
0
Insec
ts
Diseas
es
Wate
r mgt.
Temp. m
gt
Nutrien
t mgt
Wind
Factor
Min/Max Thermometer
Air temperatures ≥ 90°F (32°C) or ≤ 55°F (13°C)can reduce tomato fruit set and affect pollination.
11
100
150
ratu
re (F
)
High Tunnel (managed)OutsideHigh Tunnel (unmanaged)
0
50
1 3 5 7 9 11 13 15 17 19 21 23
Time (h)
Tem
per
Energy Curtain
15
High Temperatures
100
150
ratu
re (F
)
High Tunnel (managed)OutsideHigh Tunnel (unmanaged)
0
50
1 3 5 7 9 11 13 15 17 19 21 23
Time (h)
Tem
per
19
100120
e (F
)High Tunnel Ambient Shade cloth
20406080
Tem
pera
ture
0
1 3 5 7 9 11 13 15 17 19 21 23
Time (h)
28
Optimal planting arrangement: 0.15 m2/plant
Optimal temperature: 21-27°C
Average marketable yield: 4 kg/plant
LOW TUNNELSLOW TUNNELS
32
ParthenocarpicParthenocarpic Summer Squash
Cultivar Seed Sourcey Squash No./plant
Squash/high tunnelz
Comments
Sultan JS 5.0 1750 Parthenocarpic; medium dark
green fruit
Magda JS 4.2 1470 Pale green fruit
Spineless Beauty
SW 4.5 1575 Spine-free
Parthenon Thompson & Morgan
4.2 1470 Parthenocarpic; dark green fruit
Tigress JS 3.3 1155 Virus resistant
Venus Thompson & Morgan
3.3 1155 Parthenocarpic, dark green fruitg fruit
Bush Baby JS 1.3 455 Small, striped fruit
Costata Romanesca
JS 1.2 420 Open-pollinated, striped fruit
Large plant
LSD(0.05) 2.0
36
Prmocane-fruiting raspberries
Optimal planting arrangement: 40 canes/meter
Optimal temperature: 21-24°C
38
1500-2000 strawberry plants per commercial high tunnel
Strawberries
g
Optimal planting arrangement: 3-row bed
Optimal temperature: 20-25°C
Average marketable yield: 680g/plant
40
50
60
ft.)
Harvest frequency of high tunnel strawberries:
10
20
30
40
Oun
ce p
er r
ow (3
0 f
0
10
April 10-18
April 24 April 26 May 4 May 10 May 22 May 25 June 5
Date
O
45
8101214
t per
ft
NUM WT
02468
Num
ber/
wt
Apa
Bole
Nect
Mok
Nap
SS54
Nels
Herache
ero
tar
kum
poli
4 son
rcules
Salad Greens
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