Irrigation

2002 Annual Precision Agriculture Report for Texas High Plains.  2002.  Major, J.  Texas A&M Research and Extension Center - Lubbock.  The South Plains AgriPartners program facilitates Precision Ag initiative technology transfer from the research scientist and Extension specialist project teams to producers and any clientele seeking precision farming information via the internet.
South Plains AgriPartners Demonstration Technicians work under the supervision of Extension specialists and County Extension Agents to assist in the implementation and evaluation of a variety of larger "farm-size" applied research Precision Ag projects.
Through the use of South Plains AgriPartner technology transfer funds, farmer-friendly Precision Ag publications are developed and electronic technology transfer capabilities are updated to facilitate/accelerate dissemination of information to the public.

PrecisionAg2002report1.pdf, 17.1 kilobytes  

Sensor Guided Application for Precision Irrigation.  2002.  Maas, S. J., R. Lascano and B. Jaeken  Helms Farm, Halfway, TX.  In the first year of this study, sensors were mounted along a center-pivot irrigation system on the Helms Farm to measure the water needs of corn and cotton.

Bart_Thesis.pdf, 2.4 megabytes  

Water Management in Precision Agriculture in Peanut Systems.  2002.  Schubert, M. and D. Porter  AG-CARES and Western Peanut Growers Research Farm.  Irrigation research using PA tools indicates varietal differences in yield response to application method and strategy. Some varieties apparently respond better to the use of highly efficient LEPA irrigation during pod development than do others.

Schubert-PorterPAReport02.pdf, 417.3 kilobytes  

Precision Agriculture for Summer Grain Crops.  2002.  Lascano, R., J. Bordovsky, K. Bronson, E. Bynum, D. Nesmith, S. J. Officer, J. Booker, G. Peterson, D. Rosenow, E. Segarra, C. Trostle, W. Xu and L. T. Wilson  Helms Farm.  In 2002, crop management zones, based on slope and soil electrical conductivity, were used to allocate irrigation water to a corn crop in Helms. This concept was succes2fully applied and tested. making this a viable management approach.

PA-Helms-2002.pdf, 286.7 kilobytes  

Panhandle AgriPartner Demonstrations, Surveys and Observations in support of the Precision Agriculture Initiative.  2002.  Robinson, B. and O. R. Jones  21 Panhandle Counties.  AgriPartners conducted 96 on-farm crop and irrigation demonstrations in 2002, involving 10,000 acres and 60 producers, resulting in effective technology transfer of improved irrigation and crop water management practices.

PArpt2002AgriPartners.pdf, 40.2 kilobytes  

Use of an aerial hyperspectral sensor to identify stresses in peanuts.  2002.  Wheeler, T., K. Bronson, M. Schubert, D. Porter and H. W. Kaufman  Western Peanut Growers Field.  Reflectance differences were identified with soil calcium and magnesium. Irrigation type (IWOB, LDN, LEPA) and rates could be differentiated by reflectance patterns in cotton. Root-knot nematode density in stressed areas corrrelated with reflectance.

pahyerpeanutreport1.pdf, 299.6 kilobytes  

Equipment Development for Site-Specific Irrigation and Chemigation.  2002.  Bordovsky, J. P., R. Lascano, K. Bronson, W. Keeling, M. Schubert and T. Wheeler  Halfway.  A Variable-Rate (VR), LEPA irrigation system was constructed. VR irrigation of cotton, with management zones determined by soil electrical conductivity, showed increase yield, but lower water use efficiency than uniform irrigation.

2002PAReport-Bordovsky.pdf, 902.1 kilobytes  

Use of an aerial hyperspectral sensor to identify stresses in cotton.  2002.  Wheeler, T., K. Bronson, D. Porter and M. Schubert  AGCARES, Western Peanut Growers Field.  Reflectance obtained from an aerial hyperspectral sensor in cotton fields has been related to soil nitrate, phosphorus, texture, and population densities of root-knot nematode.

pahypercotton2002report.pdf, 183.5 kilobytes  

Effect of soil moisture on pod rot and management using variable rate fungicide applications.  2002.  Wheeler, T., D. Porter and M. Schubert  Western Peanut Growers Field.  Higher irrigation rate did increase pod rot. With use of fungicides and high irrigation rate, Pythium pod rot could be controlled and yields increased by 1,000 lbs (net improvement of $300/acre).

pa2002podrotreport.pdf, 1.1 megabytes  

Variable Rate Irrigation Development and Analysis.  2002.  Marek, T. and E. Cox  North Plains Research Field, Etter, TX.  Multi-temporal yield analysis appears to be a feasible and useful tool for assessing multi-year production assessments for producers.

2002PARptTHM.pdf, 389.2 kilobytes  

Site Specific Management of a Corn - Spinach - Cotton Rotation with Center Pivot Irrigation under Traditional and Conservation Tillage.  2002.  Piccinni, G., C. Stichler, N. Troxclair and D. Leskovar  Texas A&M Research and Extension Center - Uvalde.  IR cameras are effectively able to distinguish between biotic and abiotic stresses with the assistance of groundtruthing.

Piccinni2002PrecisionAgcomprehensivereport.pdf, 1.1 megabytes  

Field scale-testing of variable-rate nitrogen and water for Texas High Plains Cotton.  2002.  Bronson, K., W. Keeling, T. Wheeler, R. Boman, J. Bordovsky and J. Booker  Lubbock.  2002 Precision agriculture results at AG-CARES, Lamesa indicated that nitrogen fertilizer response was observed at 85 % ET irrigation rate, but not at 64 or 75 % ET. Nitrogen fertilizer, therefore is needed in smaller amounts when irrigation capacity.

PA-2002ReportOn-farmproject-Bronson.pdf, 31.4 kilobytes  

2001 and Earlier

Document Title	Author(s)	Location	Year	File Format
				html	pdf
Water Management in Precision Agriculture in Peanut Systems	A. M. Schubert and Dana Porter	Denver City	2001
Precision Agriculture on Summer Grain Crops	Bordovsky et al.	Halfway	2001
Variable Rate Irrigation Development and Analysis	Thomas Marek	Etter	2001
The Effect of Soil Moisture on Pod Rot	Terry Wheeler	Gaines County	2001
Equipment Development for Site-Specific Irrigation and Chemigation	James P. Bordovsky	Halfway/Helms	2001
The Balance and Variability of Water/Nitrogen within Large Agricultural Fields	Robert J. Lascano	Lamesa and Helms Farm	2001
Cotton, Water, Nitrogen and IPM in Precision Agriculture	Robert J. Lascano	Lubbock	2000
Environmental and Economic Tradeoffs of Precision Farming: A Research Investigation in Irrigated Agriculture, Northern Texas Panhandle	W. L. Harmon	Temple	2000
The Influence of Soil Moisture and Variable Rate Fungicide Application on Management of Pod Rot of Peanut	Terry Wheeler	Lubbock	2000
Use of Precision Irrigation and Remote Sensing to Manage and Monitor Disease in Pathogen Infested Soils	Charles M. Rush	Amarillo/Bushland	2000
Factors Impacting Development of a Remote Sensing Dependent Site-Specific Irrigation/Chemigation System	G. J. Michels, Jr.	Amarillo/Bushland	2000
Equipment Development for Site-Specific Irrigation and Chemigation	James P. Bordovsky	Lubbock/Halfway	2000
The Balance and Variability of Water/Nitrogen within Large Agricultural Fields	Lascano, Li, Booker, et al.	Lamesa	1999
Factors Impacting Development of a Remote Sensing Dependent Site-Specific Irrigation/Chemigation System	Charles M. Rush	Bushland	1999
Environmental and Economic Tradeoffs of Precision Farming: A Research Investigation in Irrigated Agriculture, Northern Texas Panhandle	Harmon, Williams, Srinivasan, et al.	Etter	1999