Planted: 10 September 2010
This farmer treated his soil for 55 tons. Potatoes planted with 3L Bio Terra 1 + 300ml Bio Terra 2, 100ml HP Active and 1L Herbali in each row when planting. After 80% emerge, 1L Herbali was applied and two weeks later 1L was again applied and again after 2 weeks. See the root development on the first photo's as well as the thickness of the stem of the plant.
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Control
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Control
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Control
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Control: 57 Ton
Trial: 68 Ton
Kultivar BP1
Proof
Control
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Control