Abstract
Summary Field experiments were conducted on four barley cultivars (two hulled and two hullless) grown under unirrigated conditions in Varanasi, India, to observe the effect of rate of application of nitrogen on copper concentration and uptake in plants and soils. The copper concentration in both plants and soil decreased with age of crop because of the dilution effect of more vegetative growth. Varieties did not differ in copper concentration of plants but increasing application of nitrogen decreased copper concentration in the plants. Since the hulled varieties yielded more than the hull-less ones, they removed more copper from the soil. Similarly yield was increased linearly by the application of N fertilizer and this led to a linear increase in depletion of available copper.
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Claims 8
Claim · model-written summary
Copper concentration in barley plants decreased with crop age.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Organ / stage
- age of crope0
- Outcome
- copper concentration in both plants and soile0
- Direction
- decreasede0
- Setting
- soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The copper concentration in both plants and soil decreased with age of crop because of the dilution effect of more vegetative growth.”
t0“barley”
Claim · model-written summary
Soil copper concentration decreased with crop age.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- age of crope0
- Outcome
- copper concentration in both plants and soile0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The copper concentration in both plants and soil decreased with age of crop because of the dilution effect of more vegetative growth.”
t0“barley”
Claim · model-written summary
Barley varieties did not differ in plant copper concentration.
- Taxon
- barleyHordeum vulgaret0
- Material
- Varietiese0
- Outcome
- copper concentration of plantse0
- Direction
- did not differe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Varieties did not differ in copper concentration of plants”
t0“barley”
Claim · model-written summary
Increasing nitrogen application decreased copper concentration in barley plants.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- increasing application of nitrogene0
- Outcome
- copper concentration in the plantse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing application of nitrogen decreased copper concentration in the plants.”
t0“barley”
Claim · model-written summary
Hulled barley varieties yielded more than hull-less varieties.
- Taxon
- barleyHordeum vulgaret0
- Material
- hulled varietiese0
- Outcome
- yieldede0
- Direction
- moree0
- Comparator
- hull-less onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hulled varieties yielded more than the hull-less ones”
t0“barley”
Claim · model-written summary
Hulled barley varieties removed more copper from soil than hull-less varieties.
- Taxon
- barleyHordeum vulgaret0
- Material
- hulled varietiese0
- Outcome
- copper from the soile0
- Direction
- moree0
- Comparator
- hull-less onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the hulled varieties yielded more than the hull-less ones, they removed more copper from the soil.”
t0“barley”
Claim · model-written summary
Nitrogen fertilizer increased barley yield linearly.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- application of N fertilizere0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- linearlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield was increased linearly by the application of N fertilizer”
t0“barley”
Claim · model-written summary
Nitrogen fertilizer led to a linear increase in available copper depletion.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- application of N fertilizere0
- Outcome
- depletion of available coppere0
- Direction
- increasee0
- Qualifier
- lineare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield was increased linearly by the application of N fertilizer and this led to a linear increase in depletion of available copper.”
t0“barley”
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