Re: measurement in irrigated plantations

[Dr. Clinton C. Shock]

Brendan George,

Although we are mostly studying irrigated horticultural crops, we have a
study on how irrigation criteria and water application effects hybrid
poplar tree growth.  Our irrigation  treatments are determined by soil
water potential using Watermark Soil Moisture Sensors (Irrometer Co.,
Riverside, CA).  Water is applied using micro sprinklers (Nelson
Irrigation, Walla Walla, WA).  Hybrid poplar is remarkably responsive to
small differences in soil water potential and applied water.

Commercial poplar plantations in eastern Oregon cover about 70,000
acres, and are mostly irrigated using drip irrigation.  Water is
monitored using neutron probes and water use is estimated using
automated stations.

Clint
-- 
Dr. Clinton C. Shock
Malheur Experiment Station, Oregon State University 
595 Onion Ave.  
Ontario, OR 97914, USA 
telephone 541-889-2174  
http://www.primenet.com/~mesosu

owner-sowacs@aqua.ccwr.ac.za wrote:
> 
> Sowacs:
> 
> I have two questions:
> 
> 1)      I am chasing information about irrigated eucalypt plantations.
> I am
> not interested in effluent irrigation.  If members are involved in
> this
> activity I am interested in further discussion with particular
> reference to
> water use and growth rates.
> 
> As an extension to this question (and the main interest of sowacs)
> 
> 2)      people who are irrigating trees - I am interested in the
> techniques
> you use for irrigation scheduling?
> 
> Information on these questions will be greatly appreciated.
> 
> regards,
> 
> brendan george
> research officer
>         state forests of NSW, Australia