Resources for crops

Intro Text

It is commonly accepted that 2 to 3% of yield potential is lost for every 10 mms of water stress that occurs (never recoverable). So to put some numbers around this:

  • Cereal yields can be affected by up to 20 kgs/ha of yield for every mm of insufficient irrigation watering. Therefore 50 mms/ha of insufficient watering may cost 1 tonne /ha of yield at say $300/tonne equates to $6/mm/ha.
  • Ryegrass seed crops can be affected, by up to 8 kgs of yield for every mm of insufficient irrigation watering. 50 mms/ha of insufficient watering costing 400 kgs/ha of yield at $2.00/kg equates to $16/mm/ha
  • Field Peas can be affected, by up to 10 kgs of yield for every mm of insufficient irrigation watering 50 mms/ha of insufficient watering costing 500 kgs of yield at $600/t equates to $6/mm/ha.

 

cropirrigation

It is recommended that the Aquaflex Sensor be buried in the main root zone of the plant and a second sensor buried below the root zone is highly recommended.

Burying the sensor into freshly worked soil is not a disadvantage for Aquaflex, because as with any sensor out there it will be measuring the soil in it’s current state, and freshly worked soil makes for an easy install job also.  It is best to install the sensor very soon after drilling, spread some seeds over the install site once completed.

Aquaflex helps you to manage your soil moisture at the correct levels throughout the season for the crop to maximise production and quality.

Brassicas are very sensitive to both dry and excessively wet condition. A lack of growth is easily seen in over irrigated areas or dry areas also. Aquaflex will help to identify the critical levels that will inhibit growth if breached.

Tapes 1

Arable installation

Overview:

  • Aquaflex sensors are placed within the plant row (root zone), between plants.
  • The tape is stood vertically within the trench, to avoid the pooling of water on it.
  • The same trench may be used for both sensors, placing the top sensor within the back-filled section of the trench.
  • The top sensor is set through the root zone in a sloping trench. (The tip at ~250mm deep
    the tape sloping upward to ~50mm from the surface then bending the tape over to the
    block which is placed is placed at ~100mm from soil surface).
  • The bottom Aquaflex sensor is set at the base of a ~350-400mm trench once again tape standing vertically within the trench.

Installation steps:

  1. Dig a trench to the nominated depth. Care should be taken to remove the soil carefully when digging the trench.
    Placement of the soil on a sheet of polyethylene, or similar, assists in retaining the soil in a position to enable
    you to return the soil back to where it came from
  2. Place the sensor in the trench and place soil around the sensor to ensure good contact between the soil and the sensor.
    Remember: The tape is stood vertically within the trench, to avoid the pooling of water on it.
  3. Attempt to tamp the soil back layer by layer to replace the soil pretty much as it was.
    Please replace any stones and other features of the soil to enable readings to be typical of the surrounding soil.

 

Aquaflex ApplicationNote Thumb