VII: Some results of Spanish experiments Tomatoes, Almeria - Spain
Melons, Sevilla - Spain
14
20 19
12
18 Yield mton melons / ha
Yield kg tomatoes / m2
10 8 6 4
17 16 15 14 13 12
2
11 Blanco
10
Unprocessed manure Fertiplus 2750 kg/ha Fertiplus 5500 kg/ha 66 mton/ha
Blanco
Fertiplus 1400 kg/ha
Grapes, Valencia - Spain
Potatoes, Valencia - Spain 70
7
60 Yield mton potatoes / ha
Yield kg/vine
6
5
4
3
2
Mineral fertilizer
50
40
30
Unprocessed manure Fertiplus 0,25 kg/vine Fertiplus 0,5 kg/vine 5 kg/vine
N-release at 25째C (laboratory experiment) 600
25
500
20
400 concentration mg/l
kg N mineral
30
15 10 5
10
Blanco
Fertiplus 750 kg/ha
Fertiplus 1500 kg/ha
Concentration NO3 in the above 12 cm of the soil
Subtitel: kg N mineral / mton Fertiplus
0
Humus 2000 kg/ha Unprocessed manure 8000 kg/ha
300 200 100
0
4
8 weekly intervals
12
16
20
0
14 days Blanco
35 days Unprocessed manure
56 days
77 days Fertiplus
Data CIOM, Wageningen, the Netherlands
0