Annual Report For 1999

W128

I. State or Agency: Department of Agronomy and Horticulture, Agricultural Experiment Station, New Mexico State University, Las Cruces, NM 88003.

II. Principal Leaders: T.W. Sammis

III. Progress of Work and Principal Accomplishment

Three journal articles were written from the research on onions water use and submitted for publication. The Evapotranspiration Calculator using Samani's equation was written using Java Script and is available at the W128 home page. The home page for W128 was developed and tools and information about trickle irrigation installed on the home page. A cost benefit analysis tool for converting flood to microirrigation developed at Washington State University was modified to include crops in New Mexico and was posted on the W128 web page.

IV. Usefulness of Findings: The Evapotranspiration calculator can be used with daily temperature data to schedule irrigation on a drip irrigation systems and at any location where climate data is available. The cost benefit tool can be used to evaluate the economic benefits of converting from flood to drip irrigation.

V. Work Planned for Next Year:

Continue to put information on the W128 home page with links to tools developed by the W128 research group.

VI. Publications Issued or Manuscripts Approved:

Jinhui Xie, T.W. Sammis, E.S. Cardenas, M.M. Wall and D.I. Lindsey. Drip Irrigation increases Chile Pepper yield while controlling Phytrophthora Root Rot. Accepted by Ag Water management.

M.S. Al-Jamal, T.W. Sammis*, S. Ball, D. Smeal. Yield-Based irrigated Onion Crop Coefficients. Accepted by Applied Engineering in Agriculture ASAE.