Abstract
In low input agriculture, a thorough understanding of the plant-nutrient interactions plays a central role. This study aims to investigate the effects of nitrogen (N), phosphorus (P), and potassium (K) and liming omission on shoot growth as well as on topsoil root biomass, growth and morphology (tuber and fibrous roots) of sugar beet grown under field conditions at the Dikopshof long-term fertilizer experiment (Germany). Classical shoot observation methods were combined with root morphology and link measurements using an image analysis program. Omission of the nutrients N, P and K as well as of liming led to a significant decrease in shoot growth. Tuber yield was lowest for the unfertilized and the K omission treatment. The root shoot ratio was highest in the N deficient treatment. In the K omission treatment, a strategic change from a less herringbone root type (early stage) to a more herringbone root type (late stage), which is more efficient for the acquisition of mobile nutrients, was observed. By contrast, a change from a more herringbone (early stage) to a less herringbone root type (late stage) which is less expensive to produce and maintain was observed in the unfertilized treatment. We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy.
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Claims 6
Claim · model-written summary
Omitting N, P, K and liming significantly decreased sugar beet shoot growth.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise3 - Treatment
- Omission of the nutrients N, P and K as well as of liminge1
- Outcome
- shoot growthe1
- Direction
- decreasee1
- Setting
- field conditions at the Dikopshof long-term fertilizer experiment (Germany)e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Omission of the nutrients N, P and K as well as of liming led to a significant decrease in shoot growth”
e2“grown under field conditions at the Dikopshof long-term fertilizer experiment (Germany)”
e3“We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy”
Claim · model-written summary
Tuber yield of sugar beet was lowest in the unfertilized and K omission treatments.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise2
- Treatment
- unfertilized and the K omission treatmente1
- Outcome
- Tuber yielde1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Tuber yield was lowest for the unfertilized and the K omission treatment”
e2“We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy”
Claim · model-written summary
The root shoot ratio of sugar beet was highest in the N deficient treatment.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise2
- Treatment
- N deficient treatmente1
- Outcome
- root shoot ratioe1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The root shoot ratio was highest in the N deficient treatment”
e2“We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy”
Claim · model-written summary
In the K omission treatment, sugar beet root type changed from less to more herringbone during growth.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise2
- Organ / stage
- early stagee1
- Treatment
- K omission treatmente1
- Outcome
- root typee1
- Qualifier
- which is more efficient for the acquisition of mobile nutrientse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In the K omission treatment, a strategic change from a less herringbone root type (early stage) to a more herringbone root type (late stage), which is more efficient for the acquisition of mobile nutrients, was observed”
e2“We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy”
Claim · model-written summary
In the unfertilized treatment, sugar beet root type changed from more to less herringbone during growth.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise2
- Organ / stage
- early stagee1
- Treatment
- unfertilized treatmente1
- Outcome
- root typee1
- Qualifier
- which is less expensive to produce and maintaine1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“By contrast, a change from a more herringbone (early stage) to a less herringbone root type (late stage) which is less expensive to produce and maintain was observed in the unfertilized treatment”
e2“We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy”
Claim · model-written summary
Sugar beet alters its root morphology as a nutrient acquisition strategy.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Outcome
- root morphologye1
- Qualifier
- as a nutrient acquisition strategye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We conclude that sugar beet alters its root morphology as a nutrient acquisition strategy”
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