SeedMaster testing on industry manifolds found that row-to-row variance is between 20 to 23%, meaning product distribution could be 10% above or below the targeted rate.

That comes with a cost:

  • Higher product application wastes inputs
  • Uneven fertilizer application rates cause staging issues for fungicide application or desiccation
  • Higher fertilizer application can also mean seedling toxicity, an increase in lodging or delayed maturity
  • Low application can mean lost yield


Huge Variation Found in Air Bulk Metering System

SeedMaster is the first to start the discussion about the huge variation in air bulk metering systems.

Read what others are saying



Despite the competition’s claims that their seeding systems are “precise and accurate,” the truth is: they have seed and fertilizer variance of at least 20% across the width of the toolbar. 

Over and under-applying seed and fertilizer directly impacts your bottom-line through excessive input costs, and overall crop yield and quality. 

Instead of hiding the problem, SeedMaster has made huge strides in solving it.

With the new Tunable TowersTM and XeedSystem, SeedMaster has cut distribution variance in half. Add the UltraProTM II to your seeding system and seed metering variance drops dramatically to 4%.

tunable towers

A new Tunable Tower™ located within the distribution manifold is now standard on all Nova Ready SeedMaster toolbars. Working in conjunction with the XeedSystem, product flow through each run can be identified in real time. The Tunable Tower can be adjusted to balance product distribution between rows down to about 10%. That’s 5% below or above the target rate.

Features include:

  • Centre-cone adjustment allowing balanced product and airflow to each individual run
  • Unrestricted, 1-inch internal diameter from manifold to shank
  • Matched with 10-zone Nova™ air carts
  • Equal length primary hosing providing consistent back-pressure and distribution

The XeedSystem can measure product quantity flow through each run.

  • The phototransistor sensors in the XeedSystem continuously monitor and display product flow in real time
  • Instant blockage alarm that is variable-rate compatible
  • Can identify row-to-row variance in product flow
  • Tunable Towers (manifolds) can be adjusted to reduce variance
  • 98% seed count accuracy
reduce variance to 4% with ultrapro ii


The UltraPro II raises the bar again with on-frame tanks that provide flexibility in seed, fertilizer and granular inoculant applications:

  • Precision, hassle-free metering for all pulse crops with a 25% increase in the venturi "throat size"
  • High metering capacity - 25% greater capacity than first generation UltraPro
  • Accurately places granular inoculant alongside pulse crop seed
  • Gentle handling of pulse seed to reduce seed damage and improve germination
  • Ability to place safe rates of phosphorus with canola in the seedrow



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