Soil samples
Several analyses for:
The soil 
The plant
A plant sap analysis can be used to judge the current balance of the nutrients in the plant sap. The different gauges can be applied to judge the conditions of the nutrients during the cultivation and to perform correction trough fertilizing when this is required.
When the different plant sap analyses do not offer enough information, it may be decided to perform a leaf analysis. With this leaf analysis you can have an accurate view per nutrient whether there is a shortage or excess of that specific nutrient.
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Protocol Grondmonster steken
Monsterformulier
