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  • Harriet Mella

    December 14, 2020 at 11:09 am

    Hi Brian!

    This is good stuff, that you have prepared! Thank you.

    I thought of adding rhizosheath formation as indicator of potential drought resistance and adding indicator weeds from the system Ducerf. They are only of indicative value if they gain coverage! If you see one specimen here and there, this does not mean a lot!

    Indicators of equilibrium: Stellaria media & graminea, Plantago lanceolata (…) (herbs you find in healthy meadows), Cerastium triviale, Geranium colombinum

    Indicators of over application of animal matter (meadows!): explosion of Taraxacum officinale, followed by explosion of white flowering Apiaceae next stage of degradation in quality is Rumex obtusifolia.

    Indicators of destruction: the different thistle species and Rumex species, Calystegia and Convolvolus – in your area there might be other species – as a general rule: if species from wet places appear in your cultures you have a problem of soil aeration with makes the lovers of nitrite grow.

    Compaction of different origin: Conyza, Erigeron annuus, Matricaria perforata, discoidea & recutita, Potentialla reptans, Crepis foetida, Rumex pulcher, Polygonum hydropiper &persicaria, Plantago major, Ranunculus repens/sarduous

    Total destruction of clay-humus complex as clay disintegrates: Cynodon dactylon, Ambrosia artemisifolia.

    Pollution indicators: Datura stramonium, Reynoutria japonicy&sachalinensis, Euphorbia esula & lathyris, Conium maculatum, Xanthium, Amaranthus graezians, Aethusa cynapium.

    If there is more questions for Ducerf, please message me – here it works perfectly, I am not sure, how we can transfer it to the states.

    Best H