The contribution of water by dipping can be envisaged depending on the degree of dessication of the soil of the pot and keeping in mind that the roots breathe and need oxygen.
Three situations may arise:
• The substrate, completely déshydrat e, has become partly hydrophobic, which means that it has difficulty in absorbing water. This is what happens especially in the summer, back from a long absence. Intake of water performed from above using a watering can will therefore not be able to réhumecter correctly the earth taken by motte. In this situation, the soaking is THE preferred solution. But in order not to put the roots in a situation of anoxia (oxygen deprivation) it is not necessary to soak the pot for too long. In general, 15 minutes, leave to repeat the operation the next day.
• The substrate is partly dried . So the best mode of watering is to place the pot in a saucer filled with water so that it goes back into the earth by capillary action. But be careful not to apply this “treatment” more than 24 h to avoid, again, any risk of anoxia in root. In general, it is not desirable to always have a saucer with water at the foot of the pots.
• the substrate is periodically moistened. , and watering from the top is the most relevant, knowing that the water releases the macro porosity of the substrate and brings the air to the roots. The saucer under the pot is then used to recover the excess water: its presence indicates that the volume intake is sufficient compared to the needs of the plant at that time. Conversely, its absence indicates that it is necessary to continue watering in order to avoid progressive drying of the substrate.
finally, the particular case of the orchids and epiphytes. For these plants living in a natural environment, on the bark of tree branches, watering by soaking short (5 minutes maximum) is the only recommended because it mimics a rain shower. A longer time leads inevitably, if it is repeated, root-rot.
The editorial team conseilleHORTIQUID – Tomato: what needs water on sandy soil?Orchids: should they be out in the summer?The proper use of watering in the garden and on his balconSujetsJardinArrosageAucun comment
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