How s and why s (or why not s) of Dormant Seedings

Transcription

1 1/23/15 How s nd why s (or why not s) of Dormnt Seedings Mtt Sousek & Luqi Li Dormnt Seeding Why Another option Thnksgiving Ester No dely during spring due to wether Strter fertilizer nd hericides in spring No irrigtion Dormnt Seeding Why not Erodile site Ground is frozen, snow Chnce for hrd spring frost Wit until lte summer or fll Fundmentls for ALL SEEDINGS Right grss, Right plce, Right time Soil Prep Irrigtion Weed control Mowing-erly nd often Post seeding fertiliztion The erlier it covers the esier it gets Methods of seeding Power-Rke/Verticl Mower Set to disrupt top ¼ inch of soil Helps remove smll thtch lyers Promotes good seed to soil contct Cn use efore or fter seeding or oth 1

2 1/23/15 Slit seeding Miniml soil disruption Seed plced directly in slits Best to seed in two directions or more Promotes good seed to soil contct Less prone to erosion Aerifiction Solid tines or Hollow tines? Both will work Hollow tines promote more soil contct More holes the etter the seed will tke Trget 2 y 2 inch spcing Requires multiple psses with most commercil erifiers Conventionl tillge Recommended Rtes Best suited on level ground Gret seed ed Lor intensive Required when grding needed Dormnt vs. spring seeding: 1-25% higher rte(??) Kentucky luegrss ls/m Tll fescue ls/m Bufflogrss ls/m Wht we did Three seeding rtes: Kentucky luegrss t 2, 3 or 4 ls/m Turf-type tll fescue t 6, 9 or 12 ls/m Sundncer ufflogrss t 3, 4.5 or 6 ls/m Two seeding dtes: Novemer (Dormnt seeding) vs. My 1 ( seeding) 2

3 Percent ufflogrss cover Percent Kentucky luegrss cover Percent tll fescue cover 1/23/15 Wht we did Tke home messges Seeds spred y hnd, rked with lef rke Tencity: My 1 nd 4 June t 5 oz/a Quicksilver: June t 2. oz/a Irrigtion nd fertilizer pplied fter My 1 Are mowed t 2.5 inch weekly Incresing seeding rtes my not e necessry for dormnt winter seeding of Kentucky luegrss, tll fescue or ufflogrss ls/m 3. ls/m 4. ls/m ls/m 9. ls/m 12. ls/m 1 1 Rting dte Rting dte ls/m 4.5 ls/m 6. ls/m Rting dte Tke home messges Dormnt seeding my not perform well compred to spring seeding with lte spring frost 3

4 Air temperture in degree F Percent tll fescue cover Percent Kentucky luegrss cover Percent ufflogrss cover 1/23/ Dormnt Dily high temperture 1 Dily low temperture Rting dte Dormnt 3 1 Dormnt Rting dte 3 1 Rting dte Don t forget out weed control Tret it like spring seeding Sooner the etter Apply hericides efore germintion or fter Weed Control Options in Seedings Tencity (Mesotrione) PRE on re soil Post over turfed res Cr + Brodleves + Nutsedge Drive XLR8 (Quinclorc) Anytime on TF 7 dys prior nd Post 28 dys fter emergence on KBG Cr + rodleves SqureOne (Quinclorc+Crfentrzone) Post 7 DAE Cr+Brodleves Tupersn (Siduron) Cr PRE Quicksilver (Crfentrzone) Post Brodleves 4

5 % Cover July 2 Untreted Check Tencity 8 floz/a Dimension.38 li/a Tencity+Dimension Untreted Check Tencity 8 floz/a Dimension.38 li/a Tencity+Dimension % Cover July 2 Untreted Check Tencity 8 floz/a Dimension.38 li/a Tencity+Dimension Untreted Check Tencity 8 floz/a Dimension.38 li/a Tencity+Dimension 1/23/15 Dormnt Seeding KBG My Dormnt seeded TF My Seeded TF My Kentucky luegrss or lrge crgrss cover from dormnt or spring-seedings (UNL 12) Crgrss KBG LSD p=.5 KBG 18.8 Cr 6.9 Dormnt Tll fescue or lrge crgrss cover from dormnt or spring-seedings (UNL 12) If you decide to dormnt seed Crgrss TF Not necessry to rise rtes Choose the est seeding method Think out spring weed control TF is preferred over KBG LSD p=.5 TF 4.3 Cr 3. Dormnt 5

6 1/23/15 Mtt Sousek 6