The influence of irrigation method on pot geranium (Pelargonium peltatum L.) grown with saline water (Contributo in atti di convegno)

Type
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  • The influence of irrigation method on pot geranium (Pelargonium peltatum L.) grown with saline water (Contributo in atti di convegno) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • La Fata S., Incrocci L., Malorgio F., Battista P., Rapi B., Bacci L., Pardossi A. (2008)
    The influence of irrigation method on pot geranium (Pelargonium peltatum L.) grown with saline water
    in Int. Symposium on “Strategies towards Sustainability of Protected Cultivation in Mild Winter Climate”, Antalya (Turkey)
    (literal)
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  • La Fata S., Incrocci L., Malorgio F., Battista P., Rapi B., Bacci L., Pardossi A. (literal)
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  • The paper reports a study on the influence of irrigation method on water relations and growth of pot geranium (Pelargonium peltatum L.) plants cultivated in a peat-perlite mixture. Two parallel experiments were conducted using difference sources of water for the preparation of nutrient solution: groundwater containing 10 mmol L-1 NaCl or rainwater with less than 0.5 mmol L-1 NaCl. In each experiment, six treatments, which derived from the factorial combination of three irrigation systems (open- or closed-loop drip irrigation, trough technique with recycling drain water) and two scheduling methods (timer vs. tensiometer with a water tension threshold of -50 hPa), were compared. In (semi-) closed systems, the water in the mixing tank was flushed out and replaced by fresh nutrient solution whenever the EC of recycling nutrient solution exceeded 3.50 dS m-1.In both experiments, the use of tensiometer reduced significantly the water runoff in free-drain drip irrigation compared to the timer-based scheduling. The use of rainwater did not affect plant water uptake, which averaged 81.2 L m-2. In all closed systems the recycling water was never flushed out and then total water use corresponded approximately to plant water uptake. In open drip irrigation, a huge runoff was produced, although it was substantially reduced by the use of tensiometer (literal)
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  • Battista P., Rapi B., Bacci L. - Istituto di Biometeorologia, CNR,Firenze ; La Fata S., Incrocci L., Malorgio F., Pardossi A.- Dip. Biologia delle Piante Agrarie,Università di Pisa (literal)
Titolo
  • The influence of irrigation method on pot geranium (Pelargonium peltatum L.) grown with saline water (literal)
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