John Deere liquid fertilizer system delivers row-to-row accuracy
Block manifold delivery system
 
Block manifold distribution

Block manifold distribution

Orifice and check valve to the opener

Orifice and check valve to the opener

Delivering consistent and accurate fertilizer rates to each row is critical with any liquid fertilizer delivery system. The John Deere liquid fertilizer system utilizes 12-port block manifolds to equally distribute flow to the opener or in-furrow method of application. Liquid is distributed to each row through an 8-mm (0.3-in.) hose.
 
There are check valves at each row to ensure the system remains primed and flow stops immediately when planter is lifted. An orifice is located in-line and provides the restriction needed to achieve desired system pressure for excellent rate accuracy.
 
This delivery system will operate between 15 psi and 90 psi, depending on the orifice size and rate. System pressure should not exceed 100 psi. Four orifice sizes allow operators to achieve a variety of rates all with optimal system performance and row to row accuracy. See rate chart below for model by model minimum and maximum application rates.
 
An 80-mesh washable screen is in place between the tank and the pump. It is essential to have this screen (AA40216) and associated fittings in place ahead of the fertilizer pump even if not using a factory tank and quick-fill system. This screen is utilized to catch any blocks in the system caused by liquid fertilizer impurities. It is not recommended to use the 50-mesh screen.
80-mesh screen and fittings

80-mesh screen and fittings

Fertilizer rate chart located on planter

Fertilizer rate chart located on planter

Refer to this chart or the operator’s manual for fertilizer rate settings.
 
Model

Maximum rate (gal./acre)

Minimum rate (gal./acre)

1705, 1715, 1725, 1755, 1765, 1775NT 12R, 1775NT 16R - 76 cm (30 in.)

37.6

2.4

1705, 1715, 1755 - 91.44 cm (36 in.)

31.3

2.0

1705, 1715, 1755 - 97 cm (38 in.)

29.7

1.9

1705, 1715 - 102 cm (40 in.)

28.2

1.8

1785 - 76.2 cm (30 in.)

41.8

2.6

1785 - 91.44 cm (36 in.)

34.8

2.2

1785 - 96.52 cm (38 in.)

33.0

2.1

1775NT 24R Fixed-rate pump

31.0

3.2

1795

28.4

3.3

DB44 24R22

20.0

4.0

DB58 32R22

14.0

4.0

DB60 24R30

14.0

3.0

DB60 47R15

14.0

5.0

DB60 36R20

14.0

4.0

DB66 36R22

12.0

4.0

DB80 48R20

10.0

4.0

DB88 48R22

10.0

4.0

DB90 36R30

8.0

3.0

DB80 32R30

8.0

3.0

DB120 48R30

7.0

3.0

 
NOTE: 1.2-mm (0.04-in.) yellow orifices and 1.7-mm (0.07-in.) black orifices are included with this system from the factory. For producers wanting to apply higher or lower application rates, two additional orifice sizes are available through Service Parts; 0.7-mm (0.03-in.) green (A91474) and 2.5-mm (1-in.) grey (A91478). Refer to rate charts in the operator’s manual or decal for details.
 
Field install kits
 
The John Deere liquid fertilizer system is also available as an attachment for field conversion on many models.
Fertilizer pump and opener options
 
Fixed-rate CDS-John Blue® piston pump

Fixed-rate CDS-John Blue® piston pump

This liquid fertilizer delivery system is compatible with the fixed-rate pump. The system can be ordered with openers or less openers, if in-furrow application will be used. If ordered fewer openers, hoses with check valves and orifices installed will be tied up at each row for producers to finalize routing.
Flow monitor
 
If producers want to add a visual flow monitor to this system, John Deere has formed an allied agreement with CDS-John Blue to meet this need. Please contact CDS-John Blue for flow monitor options.
 
CDS-John Blue Company, Division of Advanced System Technology, Inc.
PO Box 1607, Huntsville, AL 35807
Tel: 800-253-2583, 256-721-9090
Fax: 256-721-9091
Email: info@cds-johnblue.com
www.cds-johnblue.com
 
CDS-John Blue is a trademark of CDS-John Blue Company.
CDS-John Blue Visa Gage II liquid flow-rate monitor

CDS-John Blue Visa Gage II liquid flow-rate monitor

 
Last Updated : 25-Sep-2018