plantsap fertasa presentation(1)
Post on 25-Mar-2022
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• Emmert – 1930• Scarf en Bray – 1977 – Quick test• Dr Cees Sonneveld - 1984• Bruce Tainio – Plantsap pH – 90’s• NovaCropControl – 2003 plantsap in strawberries• Omia - Omnia – 1998?• Dr. Carey Reams –Nutrient dense – Brix = Quality
concept• Joan Timmermans• John Kempf
History
Global Markers
• Brix
• pH
• EC
• Chlorophyll
“meten is weten”
Nitrogen
• NO3
• NH4
• NO2
• Total N
Macro Elements
• P
• K
• Ca
• Mg
• S
Other
• Si
• Ni
Micro Elements
• B
• Mn
• Cu
• Fe
• Mo
• ZnCritical
• Na
• Cl
• Al
• F
• B
• NO2
Next
• Org N(Amine/Amide/Acids)
• Co
• Se
Nutritional program -
Evaluation
N P K Ca Mg S Fe Zn
30.0 45.0 60.0
Week 1 Plant seedling 9.2 3.8 1.6 0.1 0.2 0.6
2 16.7 4.8 5.8 5.7 0.6 29.5
3 18.7 4.8 11.5 5.7 0.6 11.3
4 18.7 4.8 11.5 5.7 0.6 11.3
5 2.1 19.2 0.4 11.3
6 2.1 19.2 0.4
7 2.1 19.2 0.4
8 2.1 19.2 0.4
9 17.7 4.2 13.6 6.7 0.7 0.2 29.8
10 16.0 2.9 11.5 6.7 0.6 6.8
11 16.0 2.9 11.5 6.7 0.6 6.8
12 16.0 2.9 11.5 6.7 0.6 6.8
13 2.1 19.2 4.2
14 2.1 19.2 4.2
15 2.1 19.2 4.2
16 2.1 19.2 4.2
17 17.6 3.2 13.6 7.6 0.7 0.2 27.6
18 16.0 1.9 11.5 7.6 0.6 4.5
19 16.0 1.9 11.5 7.6 0.6 4.5
20 16.0 1.9 11.5 7.6 0.6 4.5
21 16.0 1.9 11.5 7.6 0.6 4.5
22 2.1 11.7 4.2
23 2.1 11.7 4.2
24 2.1 11.7 4.2
25 2.1 11.7 4.2
26 14.7 1.8 9.1 7.6 0.7 0.1 14.1
27 13.8 1.0 7.7 7.6 0.6 2.3
28 13.8 1.0 7.7 7.6 0.6 2.3
29 13.8 1.0 7.7 7.6 0.6
Totals 322 91 430 112 10 36 0 178
Phenological stage
Ridge pre-plant
g/haKg/ha
0
50
100
150
200
250
NO3 NH4 TOTALN
P K Ca Mg S B Cu Mn Fe Mo Zn
GENERAL MARKERS Week 18
Excessive - Antagonism
Culprits
Nutritional Balance range
pH = 6.4
Negative Gradient
Practical Applications
-400
100
-400
-510
300
-800
500
-400
0
-500
-1000
-800
-600
-400
-200
0
200
400
600
8.1 16.1 23.1 28.1 6.2 20.2 26.2 4.03 11.3 18.3 25.3
Potasium – Trial – new program
0 0 0,33200
52
700
2400
640
-100
2000
-500
0
500
1000
1500
2000
2500
3000
8.1 16.1 23.1 28.1 6.2 20.2 26.2 4.03 11.3 18.3 25.3
Potasium - Farm
Consumption/ week+ Gradient(ppm)above Black Line
0
1000
2000
3000
4000
5000
6000
29.5.19 5.6.19 11.6.19 22.6.19 27.6.19 3.7.19 9.7.19 17.7.19 24.7.19 31.7.19
Kishu
K Ca
52002300
1600360
0
1000
2000
3000
4000
5000
6000
29.5.19 5.6.19 11.6.19 22.6.19 27.6.19 3.7.19 9.7.19 17.7.19 24.7.19 31.7.19
Code Green
K Ca
54002300
2900
1100
0
1000
2000
3000
4000
5000
6000
7000
8000
29.5.19 5.6.19 11.6.19 22.6.19 27.6.19 3.7.19 9.7.19 17.7.19 24.7.19 31.7.19
Sunny
K Ca
2200
500
7200
2200
0
1000
2000
3000
4000
5000
6000
7000
8000
29.5.19 5.6.19 11.6.19 22.6.19 27.6.19 3.7.19 9.7.19 17.7.19 24.7.19 31.7.19
Aviator
K Ca
580
7100
2300
2800
Chrysanthemum cultivar(K + Ca Consumption)
0
200
400
600
800
1000
1200
26.02 5.03 13.03 20.03 26.03 3.04 10.04 16.4 24.4 2.5 8.5
CROP YIELD (FARM) CROP YIELD (TRIAL)
Soil health Introduction
Pepper Yield kg/weekTRIAL 24710
FARM 22382
= 2238 kg/ha
0
1000
2000
3000
4000
5000
6000
7000
22.01 29.01 5.02 12.02 19.02 26.02 5.03 13.03 20.03 26.03 3.04 10.04 16.4 24.4 2.5 8.5 16.5 22.5 30.5
NO3 (ppm) TRIAL NO3 (ppm) FARM K (ppm) TRIAL K (ppm) FARM
Soil health K and NO3 Contribution
NO3 TRIAL 45400 ppm
NO3 FARM 41920 ppm
= 3480 ppm
K TRIAL 93800 ppm
K FARM 89500 ppm
= 4300 ppm
0.5 Hoagland solution *) used in Maize.
TreatmentCa Mg K NH4 Urea NO3 SO4 P Cl
1 80 24 117 14 0 98 64 32 0
2 80 24 117 14 0 0 288 32 0
3 80 24 117 28 0 0 256 32 70
4 80 24 117 56 0 0 288 32 70
5 80 24 117 56 0 84 192 32 0
6 80 24 117 84 0 84 256 32 0
7 80 24 117 28 0 84 128 32 0
8 80 24 117 0 28 0 224 32 0
9 80 24 117 56 56 0 224 32 0
10 80 24 117 0 84 0 224 32 0
11 80 24 117 42 42 42 256 32 0
Trace elements - rate the same with all treatments * Bonner, J & Galston, A. W., 1952 Principles of Plant Physiology
28,7
20,323,3
35,3
44,3
36,3
25,7
33,339,3
44,0
35,3
0,0
5,0
10,0
15,0
20,0
25,0
30,0
35,0
40,0
45,0
50,0 Chlorophyll %LSD 0.0510.7
2,80
3,77
2,77
3,30 3,30 3,23
4,03 4,13
3,57 3,63 3,53
0,00
0,50
1,00
1,50
2,00
2,50
3,00
3,50
4,00
4,50 Brix %LSD 0.05
0.52
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