Abstract
The potential for using crop wastes as a source of nutrients on the yields of rice grown under submerged conditions was studied in both field and pot experiments at the Experimental Farm of the Agricultural and Food Engineering Department, Indian Institute of Technology, Kharagpur during 1992/93 and 1993/94. The application of groundnut haulm at 3·0 t/ha, maize stover at 5·0 t/ha, mustard stover at 3·0 t/ha and green manure at 1·5 t/ha contributed considerable amounts of nutrients, which improved components of yield, yield and nutrient uptake by rice and also improved the organic carbon (OC) content and available N, P and K in the soil. Yields and soil fertility were both further improved when these organic materials were combined with inorganic fertilizer to supply the recommended amounts of nutrients, except that inorganic fertilizer alone did not cause an increase in the OC content of the soil. In the pot experiment, the production of NH 4 -N and NO 3 -N was both larger and more consistent when organic and inorganic nutrient sources were added together than when inorganic sources alone were used.
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Claims 15
Claim · model-written summary
Application of groundnut haulm at 3·0 t/ha improved components of yield, yield and nutrient uptake by rice.
- Taxon
- rice
Oryza sativae2 - Treatment
- groundnut haulm at 3·0 t/hae1
- Outcome
- components of yield, yield and nutrient uptakee2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“groundnut haulm at 3·0 t/ha”
e2“improved components of yield, yield and nutrient uptake by rice”
Claim · model-written summary
Application of maize stover at 5·0 t/ha improved components of yield, yield and nutrient uptake by rice.
- Taxon
- riceOryza sativae2
- Treatment
- maize stover at 5·0 t/hae1
- Outcome
- components of yield, yield and nutrient uptakee2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“maize stover at 5·0 t/ha”
e2“improved components of yield, yield and nutrient uptake by rice”
Claim · model-written summary
Application of mustard stover at 3·0 t/ha improved components of yield, yield and nutrient uptake by rice.
- Taxon
- riceOryza sativae2
- Treatment
- mustard stover at 3·0 t/hae1
- Outcome
- components of yield, yield and nutrient uptakee2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“mustard stover at 3·0 t/ha”
e2“improved components of yield, yield and nutrient uptake by rice”
Claim · model-written summary
Application of green manure at 1·5 t/ha improved components of yield, yield and nutrient uptake by rice.
- Taxon
- riceOryza sativae2
- Treatment
- green manure at 1·5 t/hae1
- Outcome
- components of yield, yield and nutrient uptakee2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“green manure at 1·5 t/ha”
e2“improved components of yield, yield and nutrient uptake by rice”
Claim · model-written summary
Application of groundnut haulm at 3·0 t/ha improved soil organic carbon content.
- Taxon
- wetland ricet0
- Treatment
- groundnut haulm at 3·0 t/hae1
- Outcome
- organic carbon (OC) contente2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“groundnut haulm at 3·0 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of maize stover at 5·0 t/ha improved soil organic carbon content.
- Taxon
- wetland ricet0
- Treatment
- maize stover at 5·0 t/hae1
- Outcome
- organic carbon (OC) contente2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“maize stover at 5·0 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of mustard stover at 3·0 t/ha improved soil organic carbon content.
- Taxon
- wetland ricet0
- Treatment
- mustard stover at 3·0 t/hae1
- Outcome
- organic carbon (OC) contente2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“mustard stover at 3·0 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of green manure at 1·5 t/ha improved soil organic carbon content.
- Taxon
- wetland ricet0
- Treatment
- green manure at 1·5 t/hae1
- Outcome
- organic carbon (OC) contente2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“green manure at 1·5 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of groundnut haulm at 3·0 t/ha improved available N, P and K in the soil.
- Taxon
- wetland ricet0
- Treatment
- groundnut haulm at 3·0 t/hae1
- Outcome
- available N, P and Ke2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“groundnut haulm at 3·0 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of maize stover at 5·0 t/ha improved available N, P and K in the soil.
- Taxon
- wetland ricet0
- Treatment
- maize stover at 5·0 t/hae1
- Outcome
- available N, P and Ke2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“maize stover at 5·0 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of mustard stover at 3·0 t/ha improved available N, P and K in the soil.
- Taxon
- wetland ricet0
- Treatment
- mustard stover at 3·0 t/hae1
- Outcome
- available N, P and Ke2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“mustard stover at 3·0 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Application of green manure at 1·5 t/ha improved available N, P and K in the soil.
- Taxon
- wetland ricet0
- Treatment
- green manure at 1·5 t/hae1
- Outcome
- available N, P and Ke2
- Direction
- improvede2
Not reportedComparator
Verbatim
t0“wetland rice”
e1“green manure at 1·5 t/ha”
e2“improved the organic carbon (OC) content and available N, P and K in the soil”
Claim · model-written summary
Yields and soil fertility were further improved when the organic materials were combined with inorganic fertilizer supplying the recommended nutrient amounts.
- Taxon
- wetland ricet0
- Treatment
- combined with inorganic fertilizere1
- Outcome
- Yields and soil fertilitye1
- Direction
- further improvede1
Not reportedComparator
Verbatim
t0“wetland rice”
e1“Yields and soil fertility were both further improved when these organic materials were combined with inorganic fertilizer to supply the recommended amounts of nutrients”
Claim · model-written summary
Inorganic fertilizer alone did not increase the soil organic carbon content.
- Taxon
- wetland ricet0
- Treatment
- inorganic fertilizer alonee1
- Outcome
- OC content of the soile1
- Direction
- did not cause an increasee1
Not reportedComparator
Verbatim
t0“wetland rice”
e1“inorganic fertilizer alone did not cause an increase in the OC content of the soil”
Claim · model-written summary
In the pot experiment, production of NH4-N and NO3-N was larger and more consistent when organic and inorganic nutrient sources were added together than with inorganic sources alone.
Verbatim
t0“wetland rice”
e1“In the pot experiment, the production of NH 4 -N and NO 3 -N was both larger and more consistent when organic and inorganic nutrient sources were added together than when inorganic sources alone were used”
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