Nitrogen sensing

Mounty

Member

Arable Farmer

Location

Suffolk

• Mar 14, 2018

• #21

Yes, as far as nitrogen is concerned just crop sensors as it needs to be a physical item. I've attached the items that were covered under the Precision sector.
Should know very quickly I've been told.

 

S

Soil67

New Member

• Mar 14, 2018

• #22

What are you actually measuring with these N sensors ?

 

Mounty

Member

Arable Farmer

Location

Suffolk

• Mar 14, 2018

• #23

It's a reflection measurement.

 

S

Soil67

New Member

• Mar 14, 2018

• #24

Reflection of what ?

 

Mounty

Member

Arable Farmer

Location

Suffolk

• Mar 14, 2018

• #25

Infra red light source, so the sensor is measuring the amount of light that gets reflected back as well as measuring the bio mass. Takes up to 2000 measurements per second but I am only referring to the Isaria not the N sensor.

 

S

Soil67

New Member

• Mar 14, 2018

• #26

Really going to get some discussion growing. You are measuring the amount of green area so actually measuring the amount of chlorophyll.

 

Mounty

Member

Arable Farmer

Location

Suffolk

• Mar 14, 2018

• #27

https://www.mountliming.co.uk/wp-content/uploads/2012/11/Isaria-.pdf

 

S

Soil67

New Member

• Mar 14, 2018

• #28

I actually spoke to the guys from Isaria at Cereals. Got on to the discussion of chlorophyll and what chlorophyll is made up of.

Have I got your ears twitching yet ?

 

N

neyorks

New Member

• Mar 14, 2018

• #29

As a word of warning, not all sensors are the same, it depends on want you want from the sensor, some sensors only read green reflection from the crop and can get saturated without filters, most have not had recent updates to their algorithms and have not been ground truthed against different crops at different growth stages .Some give a biomass reading as well, which makes more use of the sensor as a management tool, for applying growth regulators or dessication products. Some only read a small area of the crop as well . As you may of gathered I have an N Sensor, and had one for a long while using it for solid and liquid applications . For me it works and can be very versatile if used to its full potential.