field application » controlled release

Qrop® CR

Qrop® CR is a polymer-coated Controlled Release prilled water-soluble potassium nitrate. Qrop® CR is covered by a superior polymer coating agent, which guarantees a consistent, safe and controlled nutrient release pattern under a wide range of soil temperatures.

The main advantages and benefits of Qrop® CR are:

  • Improved nutrient use efficiency and crop safety.
  • Lower nutrient input costs and application costs.
  • Environmentally friendly, as its use reduces the risk of nutrient run-off, ground and surface water pollution, and algae bloom in coastal areas.
  • No premature or “flash” release of nutrients at higher soil temperatures (> 70 °F), which may lead to plant burning, early nutrient depletion, and an increased risk of nutrient leaching.
  • Qrop® CR has a thin and pliable coating layer: no cracks or breaks will appear during handling and mixing.
Qrop® CR is part of SQM´s Specialty Plant Nutrition product portfolio, which is powered by The Element Q, the exclusive warranty seal that boosts the yield of your crops and optimizes the profitability of your business.



Brand

3 Month Duration

6 Month Duration

9 Month Duration

 

Analysis

Analysis

Analysis

Notes

Homogeneous

Qrop® Top K CR

11-5-22

11-5-21

10-5-21

Trace Elements

Qrop® K CR

11-0-44

11-0-43

10-0-42

Contains Sulfur

Qrop® Cal CR

14-0-0-17 Ca

14-0-0-17 Ca

13-0-0-16 Ca

 

Qrop® Cal+ CR

16-0-0-21 Ca

15-0-0-21 Ca

15-0-0-20 Ca

 

Qrop® NK CR

19-0-19

19-0-19

18-0-18

 

Qrop® MOP CR

0-0-58

0-0-56

0-0-54

 

Qrop® N CR

45-0-0

44-0-0

43-0-0

Mini Grade Available

Qrop® N CR blend grade

44-0-0

43-0-0

43-0-0

Thicker / more durable coating

Qrop® Balance CR

14-14-14

13-13-13

13-13-13

Some S and Ca

Qrop® Top N CR

19-6-13

19-6-12

18-6-12

Some S and Ca

Qrop® P CR

10-49-0

10-48-0

9-46-0

 

Blends

Qrop® CR

13-8-19

13-8-18

12-7-18

Trace Elements

Qrop® CR

16-10-14

15-10-14

15-10-13

Trace Elements

Qrop® CR

17-6-11

17-5-11

16-5-10

Trace Elements

Qrop® CR

21-8-11

20-7-10

19-7-10

Trace Elements