Abstract
A field experiment was carried out with constructed drip irrigation system on sandy soil to recognize the most proper nitrogen fertilization strategy that could be more benefits for barley production taking into consideration the economical and environmental impacts. Barley crop was significantly positively affected by nitrogen fertilizer rates and organic compost. Grain yield (45%) and shoot (11%), root (36%) dry weight were relatively increased with increasing N fertilizer rate. Plants fully fertilized with organic compost showed relative higher grain yield than those either received 100% or 50% N-mineral fertilizer which accounted for 37%. In this case, shoot and root dry matter yield were nearly closed to those of 50% N-fertilizer, but to some extent lower than those of 100% N-fertilized treatment. Plants treated with fully organic compost achieved N uptake by grains nearly closed to those obtained with high N fertilizer rate (70 kg N fed-1). Combined treatment of organic plus mineral-N did not reflect significant differences than those of plants fertilized with half N fertilizer dose. Portion of nitrogen derived from fertilizer (Ndff) and absolute value reflected higher values and percentage at rate of 100% fertilizer than those induced by 50% N rate. Ndff by grain, shoot and root of combined treatment were nearly closed to those achieved by 50% mineral-N rate. More nitrogen was derived from organic compost and still higher in grain than shoot and root systems. Nitrogen added at half dose combined with organic compost was efficiently used by grain and root recording values nearly closed to those recorded with plants treated by half mineral-N rate.
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Claims 11
Claim · model-written summary
Increasing nitrogen fertilizer rate increased barley grain yield by 45%.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- increasing N fertilizer ratee0
- Outcome
- Grain yielde0
- Direction
- increasede0
- Value
- 45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Grain yield (45%) and shoot (11%), root (36%) dry weight were relatively increased with increasing N fertilizer rate.”
t0“Barley”
Claim · model-written summary
Increasing nitrogen fertilizer rate increased barley shoot dry weight by 11%.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- increasing N fertilizer ratee0
- Outcome
- shoote0
- Direction
- increasede0
- Value
- 11%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield (45%) and shoot (11%), root (36%) dry weight were relatively increased with increasing N fertilizer rate.”
t0“Barley”
Claim · model-written summary
Increasing nitrogen fertilizer rate increased barley root dry weight by 36%.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- increasing N fertilizer ratee0
- Outcome
- root (36%) dry weighte0
- Direction
- increasede0
- Value
- 36%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield (45%) and shoot (11%), root (36%) dry weight were relatively increased with increasing N fertilizer rate.”
t0“Barley”
Claim · model-written summary
Full organic compost produced higher barley grain yield than either full or half mineral nitrogen fertilizer.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- fully fertilized with organic composte0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 37%e0
- Comparator
- 100% or 50% N-mineral fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants fully fertilized with organic compost showed relative higher grain yield than those either received 100% or 50% N-mineral fertilizer which accounted for 37%.”
t0“Barley”
Claim · model-written summary
Full organic compost gave shoot and root dry matter yield near the half-mineral-nitrogen treatment but below the full treatment.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- fully fertilized with organic composte1
- Outcome
- shoot and root dry matter yielde0
- Direction
- lowere0
- Qualifier
- nearly closed to those of 50% N-fertilizere0
- Comparator
- 100% N-fertilized treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot and root dry matter yield were nearly closed to those of 50% N-fertilizer, but to some extent lower than those of 100% N-fertilized treatment.”
t0“Barley”
e1“Plants fully fertilized with organic compost”
Claim · model-written summary
Full organic compost produced grain nitrogen uptake close to the high nitrogen fertilizer rate.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- fully organic composte0
- Outcome
- N uptake by grainse0
- Direction
- nearly closede0
- Comparator
- high N fertilizer rate (70 kg N fed-1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants treated with fully organic compost achieved N uptake by grains nearly closed to those obtained with high N fertilizer rate (70 kg N fed-1).”
t0“Barley”
Claim · model-written summary
Combined organic and mineral nitrogen did not differ significantly from half-rate mineral nitrogen.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Combined treatment of organic plus mineral-Ne0
- Outcome
- significant differencese0
- Direction
- did not reflecte0
- Comparator
- half N fertilizer dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined treatment of organic plus mineral-N did not reflect significant differences than those of plants fertilized with half N fertilizer dose.”
t0“Barley”
Claim · model-written summary
Full fertilizer rate yielded higher nitrogen derived from fertilizer than half rate.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- 100% fertilizere0
- Outcome
- Portion of nitrogen derived from fertilizer (Ndff) and absolute valuee0
- Direction
- highere0
- Comparator
- 50% N ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Portion of nitrogen derived from fertilizer (Ndff) and absolute value reflected higher values and percentage at rate of 100% fertilizer than those induced by 50% N rate.”
t0“Barley”
Claim · model-written summary
Grain, shoot, and root nitrogen derived from fertilizer under combined treatment approached half-rate mineral nitrogen.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- combined treatmente0
- Outcome
- Ndff by grain, shoot and roote0
- Direction
- nearly closede0
- Comparator
- 50% mineral-N ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ndff by grain, shoot and root of combined treatment were nearly closed to those achieved by 50% mineral-N rate.”
t0“Barley”
Claim · model-written summary
More barley nitrogen was derived from organic compost, with grain exceeding shoots and roots.
- Taxon
- BarleyHordeum vulgaret0
- Organ / stage
- graine0
- Outcome
- nitrogen was derived from organic composte0
- Direction
- Moree0
- Comparator
- shoot and root systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More nitrogen was derived from organic compost and still higher in grain than shoot and root systems.”
t0“Barley”
Claim · model-written summary
Half-dose nitrogen plus compost gave efficient use by grain and roots, near half-rate mineral nitrogen alone.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Nitrogen added at half dose combined with organic composte0
- Outcome
- efficiently used by grain and roote0
- Direction
- nearly closede0
- Comparator
- half mineral-N ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen added at half dose combined with organic compost was efficiently used by grain and root recording values nearly closed to those recorded with plants treated by half mineral-N rate.”
t0“Barley”
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