Abstract
A field experiment was conducted during the rainy seasons of 1995 and 1996 at the Indian Agricultural Research Institute, New Delhi, to study the effect of application of a part nitrogen intended for rice (Oryza saliva L.) at the time of incorporation of wheat (Triticum aestivum L. emend. Fiori & Paol.) residue in a rice-wheat cropping system. Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiation increased the grain yield by 0.5-0.7 tonnes/ha, straw yield by 0.5-1.0 tonne/ha, N uptake by 10 kg/ha, apparent N recovery by 10% and agronomic efficiency of N by 5-7 kg grain/kg fertilizer-N over no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of rice. Fertilizer N applied along with wheat residue was better conserved and resulted in higher available N content in soil than N applied after rice transplanting. Advantage of incorporation of wheat residue over its removal or burning was seen only when 40 kg N/ha was applied at the time of its incorporation.
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Claims 8
Claim · model-written summary
Splitting nitrogen with 40 kg N/ha at wheat residue incorporation increased rice grain yield by 0.5-0.7 tonnes/ha over later applications.
- Taxon
- rice
Oryza sativae0 - Treatment
- Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiatione0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 0.5-0.7 tonnes/hae0
- Comparator
- no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiation increased the grain yield by 0.5-0.7 tonnes/ha, straw yield by 0.5-1.0 tonne/ha, N uptake by 10 kg/ha, apparent N recovery by 10% and agronomic efficiency of N by 5-7 kg grain/kg fertilizer-N over no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of rice”
Claim · model-written summary
The same nitrogen split increased rice straw yield by 0.5-1.0 tonne/ha.
- Taxon
- riceOryza sativae0
- Treatment
- 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporatione0
- Outcome
- straw yielde0
- Direction
- increaseinferrede0
- Value
- 0.5-1.0 tonne/hae0
- Comparator
- no nitrogen application at the time of incroporation of wheat residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiation increased the grain yield by 0.5-0.7 tonnes/ha, straw yield by 0.5-1.0 tonne/ha, N uptake by 10 kg/ha, apparent N recovery by 10% and agronomic efficiency of N by 5-7 kg grain/kg fertilizer-N over no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of rice”
Claim · model-written summary
The same nitrogen split increased rice N uptake by 10 kg/ha.
- Taxon
- riceOryza sativae0
- Treatment
- 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporatione0
- Outcome
- N uptakee0
- Direction
- increaseinferrede0
- Value
- 10 kg/hae0
- Comparator
- no nitrogen application at the time of incroporation of wheat residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiation increased the grain yield by 0.5-0.7 tonnes/ha, straw yield by 0.5-1.0 tonne/ha, N uptake by 10 kg/ha, apparent N recovery by 10% and agronomic efficiency of N by 5-7 kg grain/kg fertilizer-N over no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of rice”
Claim · model-written summary
The same nitrogen split increased apparent rice N recovery by 10%.
- Taxon
- riceOryza sativae0
- Treatment
- 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporatione0
- Outcome
- apparent N recoverye0
- Direction
- increaseinferrede0
- Value
- 10%e0
- Comparator
- no nitrogen application at the time of incroporation of wheat residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiation increased the grain yield by 0.5-0.7 tonnes/ha, straw yield by 0.5-1.0 tonne/ha, N uptake by 10 kg/ha, apparent N recovery by 10% and agronomic efficiency of N by 5-7 kg grain/kg fertilizer-N over no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of rice”
Claim · model-written summary
The same nitrogen split increased agronomic efficiency by 5-7 kg grain/kg fertilizer-N.
- Taxon
- riceOryza sativae0
- Treatment
- 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporatione0
- Outcome
- agronomic efficiency of Ne0
- Direction
- increaseinferrede0
- Value
- 5-7 kg grain/kg fertilizer-Ne0
- Comparator
- no nitrogen application at the time of incroporation of wheat residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 40 kg N/ha (one-third of the total dose for rice) at the time of wheat residue incorporation, 40 kg N/ha at transplanting and the rest 40 kg N/ha at panicle initiation increased the grain yield by 0.5-0.7 tonnes/ha, straw yield by 0.5-1.0 tonne/ha, N uptake by 10 kg/ha, apparent N recovery by 10% and agronomic efficiency of N by 5-7 kg grain/kg fertilizer-N over no nitrogen application at the time of incroporation of wheat residue and 60 kg N/ha each at transplanting and panicle initiation of rice”
Claim · model-written summary
Fertilizer nitrogen applied with wheat residue was better conserved than nitrogen applied after rice transplanting.
- Taxon
- riceOryza sativae1
- Treatment
- Fertilizer N applied along with wheat residuee0
- Outcome
- better conservede0
- Direction
- bettere0
- Comparator
- N applied after rice transplantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer N applied along with wheat residue was better conserved and resulted in higher available N content in soil than N applied after rice transplanting”
e1“rice-wheat cropping system”
Claim · model-written summary
Fertilizer nitrogen applied with wheat residue increased soil available N relative to post-transplant application.
- Taxon
- riceOryza sativae1
- Treatment
- Fertilizer N applied along with wheat residuee0
- Outcome
- available N content in soile0
- Direction
- highere0
- Comparator
- N applied after rice transplantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer N applied along with wheat residue was better conserved and resulted in higher available N content in soil than N applied after rice transplanting”
e1“rice-wheat cropping system”
Claim · model-written summary
Wheat residue incorporation had an advantage over removal or burning only when 40 kg N/ha was applied during incorporation.
- Taxon
- riceOryza sativae1
- Treatment
- incorporation of wheat residuee0
- Outcome
- Advantagee0
- Direction
- Advantagee0
- Qualifier
- only when 40 kg N/ha was applied at the time of its incorporatione0
- Comparator
- removal or burninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Advantage of incorporation of wheat residue over its removal or burning was seen only when 40 kg N/ha was applied at the time of its incorporation”
e1“rice-wheat cropping system”
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See all 464 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.