Aluminet Thermal Screens

Aluminet Thermal Screens
Raz Ganelevin (Agr. MSc)
Department of Agriculture, Polysack, Israel
Polysack Plastic Industries Ltd.
¾ Aluminet®
¾ ChromatiNet®
¾ Shade Net
¾ Anti-Hail Net
¾ Anti-Insect Net
¾ Decorative Net
¾ Complementary Solution
2
Sufa
30%
Nir Yitzhak
70%
3
Influence of climate on
Photosynthesis
What is Photosynthesis?
6 CO2+ 6 H2O
C6 H12 O6
Plant (Chlorophyll)
4
¾Light
Factors that influence
Photosynthesis
¾Temperature
¾CO2
Open
Closed
5
Importance of the Stomatal
Condition During Daylight
(Epidermal Stomatal in Vicia Fabal))
Closed
(E. Raveh)
(Epidermal Stomatal in Vicia Fabal)
Open
(E. Raveh)
6
The Effect of Temperature on
Photosynthesis
(Berry and Björkman 1980)
7
Aluminet®
¾ Aluminet® I
¾ Aluminet® O
¾ Aluminet® IC
¾ Aluminet® DS
¾ Aluminet® RDS
8
Aluminet®
¾Maximum Temperature
¾Minimum Temperature
¾Diffused Light
9
How Aluminet Works ?
10
11
Maximum temperature
Rose bud temperature at summer
35
31
o
C
27
23
19
15
24:00
06:00
ALUMINET® 40%
Control
(Ganelevin and Zieslin, 1999)
12:00
18:00
24:00
12
Seedling Growing Under
Aluminet®
13
The Influence of Aluminet® 50%
on air Temperature
Greenhouse with Aluminet®
Greenhouse without
Aluminet®
Open Field
14
Infrared images of Aluminet® 100%
Temp outside
Temp under closed
Aluminet 100
15
Infrared images of Aluminet® 100%
Open Thermal screen
Closed Thermal screen
16
Rose Growing Under
Aluminet®
17
Improvement Quality of Summer
Crop Roses
Fresh
Weight (g.)
Dry Weight
(g.)
Length
(mm)
Control
2.0
0.38
22
ALUMINET® 40%
2.7
0.59
24
Treatment
(Ganelevin and Zieslin, 1999)
18
Pepper Growing under
Aluminet®
19
The influence of Sunlight
Radiation on the Size of
Peppers
0% shade
45% shade
(Volcani center, 1979)
20
Gross Weight of Peppers
per Sq. m.
8.9
9
8
7
8.2
7.5
7.3
6.1
6
6.8 6.8
5.9
6.6
6.3
6.5
6.2
6.0
ALUMINET 40%
5.3 5.3
2
Kg / m
7.8
5
Black 30%
4
Black 40%
3
Black 50%
2
1
0
Turkal
Lorka
Mazurka
Selika
Type
(E. Eitiel et al., 2000)
21
Number of Pepper Fruits per
Sq. m.
59
60
51
54 53
50
50
N u m b e r fo r m
2
42
40
44 44
40
41
44
42
40
40
ALUMINET 40%
35 34
Black 30%
30
Black 40%
Black 50%
20
10
0
Turkal
Lorka
Mazurka
Selika
(E. Eitiel et al., 2000)
22
Tomato Growing under
Aluminet® Shading Screens
23
Minimum Temperature
Aluminet® blocks IR spectrum
radiation, thus it is capable of
protecting against radiation frost
Transmittance (%)
Black
Grey
Aluminet
IR wavelength spectrum (nm)
24
Pepper cultivation
Aluminet® protect pepper against
frost radiation
AlumiNet
Black net
Outside
M. Teitel et al., 1995. 25
:1
15 2
:2
16 2
:3
17 2
:4
18 2
:5
20 2
:0
21 2
:1
22 2
:2
23 2
:3
2
0:
42
1:
52
3:
02
4:
12
5:
22
6:
32
7:
42
8:
5
10 2
:0
11 2
:1
12 2
:2
13 2
:3
14 2
:4
15 2
:5
17 2
:0
18 2
:1
19 2
:2
20 2
:3
21 2
:4
22 2
:5
2
0:
02
1:
12
2:
22
3:
32
14
Degree celsius
Aluminet 40%
Zantedeschia, Purtugal
Aluminet o 40% Zantedeschia, Purtugal
25
open field
‫פתוח‬
‫שטח‬
‫רשת‬
‫בית‬
aluminet
20
15
10
5
0
-5
Hour
26
® in Frost radiation Nights
Use of Aluminet®
Argentina 2000
With out
®
Aluminet®
Aluminet®®
27
Air Temperature in Heated Greenhouse
under Black Net 70% and under
® 70% I (5.1.02)
ALUMINET®
( Ganelevin, 2002)
28
® IC
ALUMINET®
29
® IC
ALUMINET®
Air temperature in Basil with heating system
21
19
17
◦C
15
13
11
9
7
22:48
00:00
01:12
Out
02:24
03:36
Hour
No Screen
04:48
06:00
07:12
08:24
Aluminet IC 60%
30
Aluminet Thermal Screen
“… meets the requirements
for acceptance on the
SENTER-list for energy
saving products.”
Aluminet Thermal Screen
Save more then 50% energy
31
Basil Cultivation in Greenhouses
32
Basil Cultivation in Greenhouses
Summer Basil Crops under Various
Shading Nets
Type
Black 50%
Aluminet®
50%
Fresh
Weight
Kg/sq.m
3.065
3.747
( Reshef, 2001)
33
Cyclamen in Holland under
Aluminet® 50%
34
Diffused Light and direct light
35
® 50% on the
The Influence of Aluminet®
Physiological Parameters of
Citrus Seedling Cultures
(Medina and Machado, 2000)
36
Citrus
Citrus Seedlings
Seedlings
August
August 08,
08, 2000
2000
W
With
ith Aluminet
Aluminet
W
ithout
W ithout Aluminet
Aluminet
== 1.23A
A
1.23A-Alu
A+Alu
+Alu
-Alu
-1
66
-2
-2
-1
A ((μμmol.m
mol.m-2.s
.s-1))
A
88
0,3
0,3
(mol.m-2.s
.s-1))
gg(mol.m
10
10
44
0,2
0,2
0,1
0,1
22
00
06:00
06:00
08:00
08:00
10:00
10:00
12:00
12:00
14:00
14:00
16:00
16:00
0,0
0,0
06:00
06:00
18:00
18:00
08:00
08:00
10:00
10:00
1400
1400
44
44
1200
1200
40
40
1000
1000
36
36
14:00
14:00
16:00
16:00
18:00
18:00
14:00
14:00
16:00
16:00
18:00
18:00
o
Temperature ((oC)
C)
Temperature
-2
-1
PAR ((μμmol.m
mol.m-2.s
.s-1))
PAR
Hour
Hour
800
800
600
600
400
400
32
32
28
28
24
24
20
20
200
200
00
06:00
06:00
12:00
12:00
Hour
Hour
16
16
08:00
08:00
10:00
10:00
12:00
12:00
14:00
14:00
16:00
16:00
(Medina and Machado, 2000)
Hour
Hour
18:00
18:00
06:00
06:00
08:00
08:00
10:00
10:00
12:00
12:00
Hour
Hour
A: Photosynthesis rate, g: Stomatal conductance, PAR: Photosynthetic Active Radiation, Temperature:
Temperature of leaves in Orange crop- measured inside greenhouse, Aug. 8, 2000.
37
Strawberry Greenhouse Cultivation
38
Aluminet DS & RDS – darkening
screen
½shortens the daylight
hours
½Less condensation on the
Screen
39
Aluminet RDS and DS
40
®
Aluminet®
Thermal Screen
¾Decrease of the differences between
day and night temperatures
¾Energy savings in heated
greenhouses
¾Protection against frost
radiation
¾Dramatic yield increase in different
crops
¾Quality improvement in different kind
of produce
¾Thrips and insect repellent
41
Use of nets against insects
43
Problematic insects in pepper & tomato
1. Bemisia Tabaci (Whitefly)
2. Frankliniella Occidentalis (Thrips)
3. Liriomyza sp (Leaf miner)
4. Aphid sp
Popular anti - insect control systems ,
for peppers & tomatoes
1. Anti-insects nets
2. Chemical pesticides
3. Organic pesticides
4. Biologic suppress
Different constructions for anti insects nets
46
Different constructions for anti insects nets
47
Different constructions for anti insects nets
48
Laboratory test
Quantities of Whitefly under various treatments
Treatment
Quantity
of Whitefly
control
2297.5
50 mesh
54.8
2.4
Aluminet® 60%
265.4
11.5
Percentage from
Control Crop
M. J. Berlinger et al., 1993.49
Laboratory test
Quantities of Leaf miner & Aphis in different treatments
Treatment
Leaf miner
Aphis
control
4.1
16.7
50 mesh
0.0
0.1
Aluminet® 60%
0.0
0.0
M. J. Berlinger et al., 1993.
50
Laboratory test
Quantities of Thrips under various types of nets
Percentage from
control crop
Treatment
Thrips
Quantity
Control
124.1
50-mesh
17.1
13.8
Aluminet® 60%
4.0
3.2
M. J. Berlinger et al., 1993.51
Tomato cultivation
Whitefly population
Whitefly
250
100
Mesh 50
OptiNet 50
Mesh 40
50
OptiNet 40
200
150
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Test No.
52
Tomato cultivation
Thrips
Thrips population
100
80
Mesh 50
60
OptiNet 50
40
Mesh 40
20
OptiNet 40
0
1
2
3
4
5
6
7
8
9
10
11
Test No.
53
Tomato cultivation
50 mesh
50 Bionet
54
Y. Antignus et al., 1998.
55