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STP™ Blades

Furrow Opener Blades by Prescription Tillage Technology

STP stands for Sabre Tooth Planter. The next generation of planter and seeding blades are here, with Prescription Tillage Technology's STP series blades. These revolutionary planting and seeding blades are capable of running in challenging soils, residues and climate conditions. These furrow opener blades create optimal seeding conditions with their agronomic geometric tooth design by their rotation and cutting action, decreased sidewall and furrow compaction, and granulation of moist soil into the furrow by increased soil flow, achieving maximum seed to soil contact..

About the STP Blades

Prescription Tillage Technology STP disc opener blades and Schaffert Mfg. Quick Attach Rebounder, 4 Link Closer, G3 walking beam arm, and Mohawk closing wheels on a Kinze 4900 planter
STP blades on a Kinze 4900 planter
with Rebounder, 4 Link Closer, Zippers & G3 arm
Prescription Tillage Technology STP disc opener blades and Schaffert Mfg. Rebounder, Chicken Tracker gauge wheel, 4 Link Closer, Zipper closing wheels, and G2 fertilizer disc walking beam on a John Deere planter
STP blade on a John Deere planter
with Rebounder, 4 Link Closer, Zippers & G3 arm
Prescription Tillage Technology STP disc opener blades and Schaffert Mfg. Rebounder, fertilizer tube over the press wheel, and cast Zipper closing wheel on a John Deere no-till drill
STP blade on a John Deere No-Till grain drill
with Rebounder, tube over the press wheel & Zipper
Prescription Tillage Technology STP disc opener blades and Schaffert Mfg. Rebounder, dual side placement 2x2 fertilizer tubes, and Chicken Tracker closing wheel on a Case IH 1200 planter
STP blade on a Case IH 1200 planter
with Rebounder, dual side placement tubes & Chicken Tracker
a set of Prescription Tillage Technolgy STP disc opener blades

Benefits—Features—Design

  • Superior Bellota disc metal technology
  • Cut through heavy residue
  • STP creates U furrow vs OEM V furrow
  • Creates better seed to soil contact
  • Promotes uniform emergence
  • Improves early root development
  • Reduces rootless corn syndrome
  • Helps Rebounders place seeds better
  • Better seed furrow closure with less down pressure
  • Using STP blades and Mohawk or Zipper closing wheels is like using a preplant rototiller in the garden

Prescription Tillage Technology STP disc opener blades and Schaffert Mfg. Chicken Tracker gauge wheel on a White 8000 planter
STP blade on a White 8000 planter with Chicken Tracker gauge wheel

Superior Bearing & Hub

Bearing and hub of the STP blade compared to the bearing and hub of standard OEM blades


backside of disc blade showing threaded hubs with countersunk heads so the bolts give a tighter fit
backside of disc blade

Benefits—Features—Design

  • Forged alloy heat treated hub
  • Threaded hubs with countersunk heads for maximum fastener contact (see image)
  • Larger bearings give longevity in high speed planting
  • Hub, bearing and blades are easily serviceable—not throwaway like OEM
  • 6 full years of testing prior to release
  • Patented STP blades, hubs and bearings

STP vs OEM

STP blades

STP opener disc blade next to the roots of a cornstalk planted with STP blades

  • Cut, slice, dice, granulate soils
  • Deep penetrating vertical roots
  • Roots dig directly down into soil
  • Good root mass in center

standard OEM blades

Standard OEM opener disc blade next to the roots of a cornstalk planted with OEM blades

  • Wedge, compact, hair pin, slide, smear side walls
  • Elongated brace roots caused by seed zone compaction
  • Roots branch out above ground in search of a place where they can penetrate the soil
  • Hollow core; void of roots in center of root system

The top of the root structure of two cornstalks from the first field check, one planted with STP blades and the other with OEM blades, showing the STP-planted stalk has roots going directly down into the soil, while the OEM-planted stalk has roots branched out where they could not penetrate the soil. The bottom of the root structure of two cornstalks from the first field check, one planted with STP blades and the other with OEM blades, showing the STP-planted stalk has an even and good root mass, while the OEM-planted stalk has few roots in the center of the root core.
The bottom of the root structure of two cornstalks from the third field check, one planted with STP blades and the other with OEM blades, showing the STP-planted stalk has an even and good root mass, while the OEM-planted stalk has few roots in the center of the root core.
The roots of the corn planted with STP blades have a good mass in the center, while the roots of the corn planted with OEM blades have a hollow core, void of roots in the center of the root system
Side view of the roots of a cornstalk planted with STP furrow opener blades next to the roots of a cornstalk planted with standard OEM blades, showing the STP-planted corn to have a fuller, healthier, denser root system

Field Checks

Field marked samples planted with Kinze 12-36″ planter with 4 rows of STP blades and 8 rows of new (OEM) Kinze double disc opener blades. Sample field planted in no-till 90 bu. stripper headed wheat stubble, located in southwest Nebraska; 22″ annual rainfall.

We have taken three separate samples from different areas of the field. Every sample taken sjhows better root system development with the STP blades. The STP also averaged 2 more rows of kernels per ear.

Chart showing the estimated yield advantages of the STP blades versus OEM blades. Figures give an 11 bushel per acre advantage to the STP, and show it takes 29 harvested acres to pay the cost of new STP blades over new OEM blades.

Kat Caswell and Bob Klein pose with cornstalks showing the OEM ear and STP ear
Kat Caswell, 4-county Nebraska Crops Extension Educator, and Bob Klein, Western Nebraska Crop Specialist, UNL

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 800-382-2607

 308-364-2607