Abstract
Three levels of sensor based high frequency irrigation treatments and four levels of twice daily irrigation treatments were applied to bell pepper (Capsicum annuum L.) in 2002 to test the effect on yield and seasonal irrigation volume, water use efficiency, and soil moisture content in the root zone. Sensor based treatments used a soil moisture sensor buried 10 cm deep within the crop root zone to maintain soil moisture at a set level. The two sensor based irrigation treatments with the largest seasonal irrigation volume resulted in yields similar to the two largest seasonal volume daily irrigation treatments (marketable yields ranged between 17,000 and 20,000 kg/ha for these treatments), but used approximately 50 % less seasonal irrigation water. This resulted in irrigation water use efficiencies of 1209-2316 kg/ha/m3 for the sensor based treatments while those of daily treatments ranged from 703 to 1612 kg/ha/m3. Sensor based irrigation treatments resulted in significantly higher soil volumetric moisture levels at the 15 and 30 cm depths. The results indicate that high frequency irrigation events based on soil moisture sensor control can maintain crop yields while reducing irrigation water requirements; however, future research is needed to reproduce this first year of results.
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Claims 4
Claim · model-written summary
High volume sensor irrigation maintained yields similar to high volume daily irrigation.
- Taxon
- bell pepper (Capsicum annuum L.)
Capsicum annuume0 - Treatment
- sensor based irrigation treatmentse1
- Outcome
- marketable yieldse1
- Direction
- similare1
- Value
- 17,000 and 20,000 kg/hae1
- Comparator
- daily irrigation treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bell pepper (Capsicum annuum L.)”
e1“The two sensor based irrigation treatments with the largest seasonal irrigation volume resulted in yields similar to the two largest seasonal volume daily irrigation treatments (marketable yields ranged between 17,000 and 20,000 kg/ha for these treatments)”
Claim · model-written summary
Sensor irrigation used about 50% less seasonal irrigation water.
- Taxon
- bell pepper (Capsicum annuum L.)Capsicum annuume0
- Treatment
- sensor based irrigation treatmentse1
- Outcome
- seasonal irrigation watere3
- Direction
- lesse3
- Value
- 50 %e3
- Comparator
- seasonal volume daily irrigation treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bell pepper (Capsicum annuum L.)”
e1“sensor based irrigation treatments”
e2“seasonal volume daily irrigation treatments”
e3“used approximately 50 % less seasonal irrigation water”
Claim · model-written summary
Sensor irrigation had water use efficiency of 1209-2316 kg/ha/m3 versus 703 to 1612 kg/ha/m3 for daily treatments.
- Taxon
- bell pepper (Capsicum annuum L.)Capsicum annuume0
- Treatment
- sensor based treatmentse1
- Outcome
- irrigation water use efficienciese1
- Value
- 1209-2316 kg/ha/m3e1
- Qualifier
- 703 to 1612 kg/ha/m3e1
- Comparator
- daily treatmentse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bell pepper (Capsicum annuum L.)”
e1“irrigation water use efficiencies of 1209-2316 kg/ha/m3 for the sensor based treatments while those of daily treatments ranged from 703 to 1612 kg/ha/m3”
Claim · model-written summary
Sensor irrigation significantly raised soil moisture at 15 and 30 cm.
- Taxon
- bell pepper (Capsicum annuum L.)Capsicum annuume0
- Treatment
- Sensor based irrigation treatmentse1
- Outcome
- soil volumetric moisture levelse1
- Direction
- highere1
- Qualifier
- 15 and 30 cm depthse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bell pepper (Capsicum annuum L.)”
e1“Sensor based irrigation treatments resulted in significantly higher soil volumetric moisture levels at the 15 and 30 cm depths”
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See all 14 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.