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In 2016, a replicated field trial was conducted in Florida to evaluate the
performance of Nu Trax P+ as part of an early season fertilizer program
for potato production. Two different fertilizer practices were implemented.
Under the conditions of this study, addition of Nu Trax P+ significantly increased
the yield of potatoes across all size catagories, despite being applied with
considerably less macronutrient fertilizer.
BACKGROUNDPotatoes have high nutrient requirements. Choosing the right fertilizer products
will help ensure proper nutrition is available when and where it’s needed, which
results in better quality, yield and storability. When it comes to potassium fertilizer,
micronutrients and starters, Compass Minerals® has the right product for fertilizing
potatoes. Starter fertilizers that contain phosphorous are important for high quality
potato production, as phosphorous stimulates vigorous root growth. It can be
difficult for plants to access phosphorous early in the season. Applying phosphorous
near plant roots helps overcome these challenges. Nu-Trax P+, which includes 25% P,
20% Zn, and 5% Mn, provides the benefits of a starter in dry fertilizer applications.
By coating onto every granule of a blend, Nu Trax P+ delivers phosphorous, zinc
and other nutrients essential for early growth to young plant roots.
METHODSThis study was conducted by a third-party research cooperator near Immokalee,
Florida. ‘Yukon Gold’ potatoes were planted 6” apart in 40” rows. Plots were 25’
long and 4 rows wide. The Grower Standard Practice (GSP) consisted of 1500 lbs/ac
of 7-5-10 prior to planting, and a side-dress application of 1250 lbs/ac of 10-3-18
four weeks after planting.
Nu-Trax P+ brings together three innovativetechnologies for earlyseason nutrition.
CropStartTM
Nutrient Package
The right blend of phosphorus, zinc, manganese and nitrogen needed for a strong start.
EvenCoatTM
Technology
Fertilizer coating technologythat allows for blanket-likedistribution and more points ofinterception for young roots.
PlantActivTM
Formulation
Physically and chemicallydesigned – the Nu-Trax P+particle size is optimum for plant uptake.
Nu-Trax P+ is a phosphorus-based fertilizer designed to provide better early season nutrition to crops. Success early in the season sets the stage for a more fibrous root system that is better able to access the nutrition that the crop needs later in the growth cycle. And a strong root system can better handle environmental stress while maximizing yield potential.
nutrax.com
ISSUE 34: 2017
Nu-Trax™ P+ Increases Potato Yield Across All Size Categories in Florida
20.16 19.92
22.92
GP SR SR + Nu-Trax P+
ton/
ac
15
16
17
18
19
20
21
22
23
24
25
a
b b
Application of Nu Trax P+ with the State Recommended fertility plan not only significantly increased total
yield of US No. 1 potatoes, it provided significant yield benefits in every size category. The results of this
study demonstrate that Nu Trax P+ can increase returns to the grower by producing more potatoes,
including Jumbo and XL size categories.
SUMMARY
compassminerals.com | 9900 W. 109th St., Suite 100, Overland Park, KS 66210
Copyright © 2016, All Rights Reserved - Compass Minerals Manitoba Inc., Nu-TraxTM P+, CropStartTM, EvenCoatTM and PlantActivTM are trademarks of Compass Minerals Manitoba Inc. Compass Minerals is the proud supplier of Wolf Trax Innovative Nutrients. Not all products are registered in all areas.Contact [email protected] for more information.
Figure 1. Total yield (tons/ac) of US No. 1 potatoes. P=0.0002.
GP SR SR + Nu-Trax P+
a
b b
0
5
10
15
20
25
ton/
ac
Jumbo
XL
L
M
2.40
2.66
5.72
7.72
6.82
5.46
7.38
4.68
2.42
5.42
7.42
4.90
Figure 2. Yield of US No. 1 potatoes (ton/ac) by size category. Jumbo, P= 0.0041. XL, P=0.0485. L,P=0.0005. M, P=0.0029.
The State Recommendation (SR) consisted of 190 lbs N/ac and 100 lbs K2O
prior to planting, with no side-dress application. Nu-Trax P+ was coated
onto the pre-plant granular fertilizer blend at the recommended rate
of 2 lbs/ac, which was applied 4” deep in the planting beds (Table 1).
The crop was taken to yield and data was analyzed using the appropriate
statistical analysis.
RESULTSApplication of Nu Trax P+ with the
State Recommended fertilizer program
significantly increased the total yield
of US No. 1 potatoes relative to either
the Grower Practice (+ 2.76 tons/ac) or
State Recommendation (+3.00 tons/ac)
alone (Figure 1).
Addition of Nu Trax P+ to the State
Recommended fertility plan also
significantly increased yield in all size
categories, ranging from Medium
to Jumbo potatoes (Figure 2). For
example, yield increases with
application of Nu Trax P+ ranged
from 0.24 to 0.26 tons/ac in the
Jumbo size category, and from 0.26
to 0.30 tons/ac in the XL size category
(Figure 2).
1 Grower Standard Practice (GSP)
2 State Recommendation (SR)
3 SR + Nu Trax P+
Table 1. Fertilizer Treatments Applied to Potatoes
Trt Treatment Name