Abstract
Abstract A field experiment was conducted during wet and dry seasons of 1987–88 and 1988–89 to evaluate the performance of green manures with and without fertilizer nitrogen in lowland rice and their residual effect on succeeding crop of chickpea grown under rice‐chickpea cropping system. Incorporation of Ipomea carnea (green leaves), Cassia tora and Parthenium hysterophorus (green young plants) ca. 5 t/ha fresh weight significantly improved yield and yield components namely panicles per hill, panicle length, grains per panicle and test weight of transplanted rice. The results showed that at least 20 kg/ha fertilizer nitrogen applied to rice could be replaced by incorporation of 5 t/ha fresh weight green manure. Supplementation of 60 kg N/ha through urea to the green manures treated plots proved to be the best in respect of grain yield and was comparable to the yield obtained under 80 kg N/ha as urea alone. Plant N‐uptake followed the similar pattern of rice grain yield. Residual fertility in terms of available nitrogen increased under the green manure treatments, whereas urea nitrogen alone made no impact on fertility build‐up. Green manures showed significantly higher residual response than fertilizer N alone to seed yield and N uptake of chickpea.
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Claims 10
Claim · model-written summary
Ipomea carnea green manure improved rice yield and components.
- Taxon
- rice
Oryza sativae0 - Treatment
- Ipomea carnea (green leaves)e0
- Outcome
- yield and yield componentse0
- Direction
- improvede0
- Value
- ca. 5 t/ha fresh weighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of Ipomea carnea (green leaves), Cassia tora and Parthenium hysterophorus (green young plants) ca. 5 t/ha fresh weight significantly improved yield and yield components namely panicles per hill, panicle length, grains per panicle and test weight of transplanted rice”
Claim · model-written summary
Cassia tora green manure improved rice yield and components.
- Taxon
- riceOryza sativae0
- Treatment
- Cassia torae0
- Outcome
- yield and yield componentse0
- Direction
- improvede0
- Value
- ca. 5 t/ha fresh weighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of Ipomea carnea (green leaves), Cassia tora and Parthenium hysterophorus (green young plants) ca. 5 t/ha fresh weight significantly improved yield and yield components namely panicles per hill, panicle length, grains per panicle and test weight of transplanted rice”
Claim · model-written summary
Parthenium hysterophorus green manure improved rice yield and components.
- Taxon
- riceOryza sativae0
- Treatment
- Parthenium hysterophorus (green young plants)e0
- Outcome
- yield and yield componentse0
- Direction
- improvede0
- Value
- ca. 5 t/ha fresh weighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of Ipomea carnea (green leaves), Cassia tora and Parthenium hysterophorus (green young plants) ca. 5 t/ha fresh weight significantly improved yield and yield components namely panicles per hill, panicle length, grains per panicle and test weight of transplanted rice”
Claim · model-written summary
Green manure replaced at least 20 kg/ha fertilizer N in rice.
- Taxon
- riceOryza sativae0
- Outcome
- fertilizer nitrogen applied to rice could be replacede0
- Value
- at least 20 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at least 20 kg/ha fertilizer nitrogen applied to rice could be replaced by incorporation of 5 t/ha fresh weight green manure”
Claim · model-written summary
Adding 60 kg N/ha urea to green manure produced the best rice grain yield, comparable with 80 kg N/ha urea.
- Taxon
- riceOryza sativat0
- Treatment
- 60 kg N/ha through urea to the green manures treated plotse0
- Outcome
- grain yielde0
- Direction
- beste0
- Comparator
- 80 kg N/ha as urea alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of 60 kg N/ha through urea to the green manures treated plots proved to be the best in respect of grain yield and was comparable to the yield obtained under 80 kg N/ha as urea alone”
t0“Rice”
Claim · model-written summary
Rice N uptake followed the grain yield pattern.
- Taxon
- riceOryza sativae0
- Outcome
- Plant N‐uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant N‐uptake followed the similar pattern of rice grain yield”
Claim · model-written summary
Green manure increased available nitrogen residual fertility.
- Taxon
- riceOryza sativat0
- Treatment
- green manure treatmentse0
- Outcome
- Residual fertility in terms of available nitrogene0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Residual fertility in terms of available nitrogen increased under the green manure treatments”
t0“Rice”
Claim · model-written summary
Urea alone did not build residual soil fertility.
- Taxon
- riceOryza sativat0
- Outcome
- fertility build‐upe0
- Direction
- no impacte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“urea nitrogen alone made no impact on fertility build‐up”
t0“Rice”
Claim · model-written summary
Green manure had a higher residual effect on chickpea seed yield than fertilizer nitrogen alone.
- Taxon
- chickpea
Cicer arietinume0 - Treatment
- Green manurese0
- Outcome
- seed yielde0
- Direction
- highere0
- Comparator
- fertilizer N alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Green manures showed significantly higher residual response than fertilizer N alone to seed yield and N uptake of chickpea”
Claim · model-written summary
Green manure had a higher residual effect on chickpea N uptake than fertilizer nitrogen alone.
- Taxon
- chickpeaCicer arietinume0
- Treatment
- Green manurese0
- Outcome
- N uptakee0
- Direction
- highere0
- Comparator
- fertilizer N alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Green manures showed significantly higher residual response than fertilizer N alone to seed yield and N uptake of chickpea”
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See all 3,455 papers →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.