Abstract
A field experiment was carried out during kharif seasons (June to October) of 2008 to 2009 at New Delhi, to study the Fe density and uptake in aerobic rice as influenced by mulching and iron nutrition. The treatments comprising four methods of rice production viz. bare soil (no mulch), wheat straw mulch (5 t ha-1), Sesbania aculeata mulch and transplanted rice (paddy control) in main plots and five treatments of Fe fertilization, that is, control, FeSO4 50 kg ha-1, FeSO4 100 kg ha-1, FeSO4 50 kg ha-1 + 2 foliar sprays of 2.0% FeSO4 and 3 foliar sprays of 2.0% FeSO4 at maximum tillering, pre-flowering and flowering in sub-plots, replicated thrice in a split plot design. Transplanted rice (Paddy control) was found to be superior for improving Fe concentration and their uptake in grain and straw of rice compared with other treatments. Application of mulch increased Fe concentration and uptake in grain and straw in aerobic rice compared to no mulch aerobic rice treatment. Application of 3 foliar sprays of 2.0% Fe SO4 recorded higher Fe concentration and with significant improvement in uptake in grain as well as in straw of aerobic rice. Fe application increased the Fe concentration 5.4 to 19.9% and 5.8 to 13.3% in grain and straw of aerobic rice. Besides that, methods of rice production increased the Fe concentration 5 to 11% and 4.1 to 6.3% over bare soil (no mulch) in grain and straw, respectively. Transplanted rice produced more yield compared to all aerobic rice treatments. But application of wheat straw/Sesbania mulch recorded significant higher yields compared to no mulch aerobic rice treatment. Application of Fe fertilizer increased the grain and straw yield 4 to 8.2% and 2.7 to 6.7% over control, respectively. Our study showed that, growing of aerobic rice with Sesbania mulch and Fe fertilization produced higher grain and straw yield of aerobic rice with sufficient Fe nutrition. Key words: Aerobic rice, Fe concentration, iron nutrition, Sesbania mulch, wheat straw mulch.
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Claims 12
Claim · model-written summary
Transplanted rice was superior to other treatments for Fe concentration and uptake in grain and straw.
- Taxon
- rice
Oryza sativae0 - Treatment
- Transplanted ricee0
- Outcome
- Fe concentration and their uptake in grain and strawe0
- Direction
- superiore0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplanted rice (Paddy control) was found to be superior for improving Fe concentration and their uptake in grain and straw of rice compared with other treatments”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Mulch increased Fe concentration and uptake in grain and straw of aerobic rice compared with no mulch.
Verbatim
e1“Application of mulch increased Fe concentration and uptake in grain and straw in aerobic rice compared to no mulch aerobic rice treatment”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Three foliar sprays of 2.0% FeSO4 gave higher Fe concentration in aerobic rice.
- Taxon
- aerobic ricee2
- Treatment
- 3 foliar sprays of 2.0% Fe SO4e2
- Outcome
- Fe concentratione2
- Direction
- highere2
Not reportedComparator
Verbatim
e2“Application of 3 foliar sprays of 2.0% Fe SO4 recorded higher Fe concentration and with significant improvement in uptake in grain as well as in straw of aerobic rice”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Three foliar sprays of 2.0% FeSO4 significantly improved Fe uptake in grain and straw of aerobic rice.
- Taxon
- aerobic ricee2
- Treatment
- 3 foliar sprays of 2.0% Fe SO4e2
- Outcome
- uptake in grain as well as in strawe2
- Direction
- significant improvemente2
Not reportedComparator
Verbatim
e2“Application of 3 foliar sprays of 2.0% Fe SO4 recorded higher Fe concentration and with significant improvement in uptake in grain as well as in straw of aerobic rice”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Fe application increased Fe concentration in grain of aerobic rice by 5.4 to 19.9%.
- Taxon
- aerobic ricee3
- Treatment
- Fe applicatione3
- Outcome
- Fe concentratione3
- Direction
- increasede3
- Value
- 5.4 to 19.9%e3
- Qualifier
- in graine3
Not reportedComparator
Verbatim
e3“Fe application increased the Fe concentration 5.4 to 19.9% and 5.8 to 13.3% in grain and straw of aerobic rice”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Fe application increased Fe concentration in straw of aerobic rice by 5.8 to 13.3%.
- Taxon
- aerobic ricee3
- Treatment
- Fe applicatione3
- Outcome
- Fe concentratione3
- Direction
- increasede3
- Value
- 5.8 to 13.3%e3
- Qualifier
- strawe3
Not reportedComparator
Verbatim
e3“Fe application increased the Fe concentration 5.4 to 19.9% and 5.8 to 13.3% in grain and straw of aerobic rice”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Methods of rice production increased Fe concentration in grain by 5 to 11% over bare soil without mulch.
- Taxon
- riceOryza sativae4
- Treatment
- methods of rice productione4
- Outcome
- Fe concentratione4
- Direction
- increasede4
- Value
- 5 to 11%e4
- Qualifier
- in graine4
- Comparator
- bare soil (no mulch)e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“methods of rice production increased the Fe concentration 5 to 11% and 4.1 to 6.3% over bare soil (no mulch) in grain and straw, respectively”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Methods of rice production increased Fe concentration in straw by 4.1 to 6.3% over bare soil without mulch.
- Taxon
- riceOryza sativae4
- Treatment
- methods of rice productione4
- Outcome
- Fe concentratione4
- Direction
- increasede4
- Value
- 4.1 to 6.3%e4
- Qualifier
- strawe4
- Comparator
- bare soil (no mulch)e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“methods of rice production increased the Fe concentration 5 to 11% and 4.1 to 6.3% over bare soil (no mulch) in grain and straw, respectively”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Transplanted rice produced more yield than all aerobic rice treatments.
- Taxon
- riceOryza sativae5
- Treatment
- Transplanted ricee5
- Outcome
- yielde5
- Direction
- moree5
- Comparator
- all aerobic rice treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Transplanted rice produced more yield compared to all aerobic rice treatments”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Wheat straw or Sesbania mulch gave significantly higher yields than no mulch in aerobic rice.
Verbatim
e6“application of wheat straw/Sesbania mulch recorded significant higher yields compared to no mulch aerobic rice treatment”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Fe fertilizer increased grain yield of aerobic rice by 4 to 8.2% over control.
Verbatim
e7“Application of Fe fertilizer increased the grain and straw yield 4 to 8.2% and 2.7 to 6.7% over control, respectively”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
Claim · model-written summary
Fe fertilizer increased straw yield of aerobic rice by 2.7 to 6.7% over control.
Verbatim
e7“Application of Fe fertilizer increased the grain and straw yield 4 to 8.2% and 2.7 to 6.7% over control, respectively”
t0“Enhancing iron density and uptake in grain and straw of aerobic rice”
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See all 83 papers →8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.