Life Sciences Commons^™

Deficit Irrigation Strategies For Subsurface Drip-Irrigated Alfalfa, F. R. Lamm, R. Reyes-Esteves, K. R. Harmoney

Kansas Agricultural Experiment Station Research Reports

This subsurface drip-irrigated study was conducted from 2020 to 2021 at the Kansas State University Northwest Research-Extension Center near Colby, KS, to evaluate five deficit irrigation strategies for alfalfa. All strategies were irrigated similarly (100% of Evapotranspiration (ET) minus Rain) through the first seasonal cutting. Following the first cutting, treatments were 1) Irrigate to replace 85% ET minus Rain; 2) Irrigate to replace 50% ET minus Rain between Cutting 2 and 3, then 85% ET-Rain; 3) Irrigate to replace 50% ET minus Rain between Cutting 2 and 4, then 85% ET-Rain; 4) Irrigate to replace 70% ET minus Rain between …

Effects Of Drip Irrigation And Cultivation Methods On Establishment Of Seeded Tall Fescue, Alex P. Bach, Dale J. Bremer, Cathie C. Lavis, Steven J. Keeley, Mu Hong

Kansas Agricultural Experiment Station Research Reports

Subsurface drip irrigation (SDI) is becoming increasingly popular for maintaining turfgrass, in part because it conserves water. However, turf managers considering SDI may wonder if SDI is effective in establishing seeded turfgrass, should the need arise. Also, can verticutting or core aeration be used to establish the seedbed without damaging the buried driplines? Is one of those two cultivation methods better than the other? These questions were evaluated in this study. An aboveground drip irrigation system (AGD) was also evaluated because it has been suggested as a portable method for establishing turfgrass planted along roadsides.

Results indicated seeded tall fescue …

Establishing Seeded Tall Fescue With Covers And Drip Irrigation Methods, Alex P. Bach, Dale J. Bremer, Cathie C. Lavis, Steven J. Keeley, Mu Hong

Kansas Agricultural Experiment Station Research Reports

The use of covers may improve establishment of seeded turfgrass but their use in combination with drip irrigation techniques has not been evaluated. We investigated the effects of two cover types and three irrigation methods on establishment of seeded tall fescue turfgrass. For spring seeding of tall fescue[Schedonorus arundinaceus(Schreb.) Dumort.], turf establishment was successful with subsurface drip irrigation (SDI) and aboveground drip irrigation (AGD) in fine textured soil in the transition zone. With SDI, AGD, or sprinkler irrigation, both polyester mesh (Poly) and straw blanket (Straw) covers improved turf establishment in the order of Poly>Straw>No Cover, …

Efficient Irrigation Technologies For Corn—A Comparison, F. R. Lamm, D. M. O'Brien

Kansas Agricultural Experiment Station Research Reports

This study was conducted from 2016–2021 at the Kansas State University Northwest Research-Extension Center near Colby, KS. Two irrigation systems, subsurface drip irrigation (SDI) and mobile drip irrigation (MDI) were compared for two irrigation capacities equivalent to 0.25 in./day and 0.167 in./day. Irrigation amounts were similar for the two systems when comparing the equivalent capacities, averaging 13.3 and 11.4 inches per acre. When averaged over the six-year period, SDI and MDI corn grain yields were 242.5 and 239.2 bu/a, respectively. Although irrigation amounts for the two systems at an equivalent irrigation capacity were similar, total crop water use was less …