Irrigation Management in Container Nursery Production to Reduce Water Use, Runoff, and Offsite Movement of Agricultural Chemicals

Irrigation Management in Container Nursery Production to Reduce Water Use, Runoff, and Offsite Movement of Agricultural Chemicals

4.11 - 1251 ratings - Source



Irrigation applications based on daily water use (DWU) were compared to a traditional irrigation rate to investigate the effects on plant growth, irrigation and runoff volumes, and nutrient quantities carried in runoff for container-grown woody ornamentals. Plant DWU was determined by measuring the change in substrate volumetric moisture content between irrigations. Irrigation treatments were: (1) a control of 19 mm-ha applied per application; (2) 100% DWU per application; (3) alternating every other application with 100% and 75% DWU; and (4) a three application cycle replacing 100% DWU followed by two applications of 75% DWU. Total irrigation applied by the 3 DWU treatments was reduced 25% to 75% compared to the control depending on treatment and species. Runoff from irrigation applied at 100% and 75% DWU volumes were 66% and 79% less than the control across all measurement days. For all taxa final growth index of DWU treatments was greater than or equal to the control. Relationships of potential evapotranspiration and growth to actual evapotranspiration of Spiraea fritschiana Schneid. 'Wilma' show promise for developing a model for irrigation scheduling. The DWU treatments used in this study reduced irrigation volumes, runoff, and NO3- -N and PO43- -P losses compared to a control of 19 mmAmd-1 while producing the same size or larger plants.Daily Water Use Daily water Use (DWU) was determined using a ThetaProbe Type ML2x soil moisture sensor ... to improve the accuracy of the ThetaProbe as outlined in the ThetaProbe Type ML2x user manual (Anonymous, 1 999; Seeanbsp;...


Title:Irrigation Management in Container Nursery Production to Reduce Water Use, Runoff, and Offsite Movement of Agricultural Chemicals
Author: Aaron Lynn Warsaw
Publisher:ProQuest - 2009
ISBN-13:

You must register with us as either a Registered User before you can Download this Book. You'll be greeted by a simple sign-up page.

Once you have finished the sign-up process, you will be redirected to your download Book page.

How it works:
  • 1. Register a free 1 month Trial Account.
  • 2. Download as many books as you like (Personal use)
  • 3. Cancel the membership at any time if not satisfied.


Click button below to register and download Ebook
Privacy Policy | Contact | DMCA