Abstract
The cultivation of green manure crops plays an important role in soil quality and the sustainability of agricultural systems. Field experiments were conducted during one season (2007/2008) to evaluate the effects of different seeding methods on the biomass and N production of hairy vetch ( Vicia villosa ) and barley ( Hordeum vuglare ). The effects of treatments on rice yield and its components were also investigated. Specifically, the following four treatments were evaluated: broadcasting before rice harvesting (BBRH), partial tillage seeding (PTS), group seeding (GS) and drill seeding (DS). The overall results showed the following ranking of biomass and nitrogen production of hairy vetch by different seeding methods: BBRH > PTS > DS > GS. Additionally, biomass and nitrogen production of barley was lower than those of hairy vetch at all tested seeding treatments. BBRH and PTS treatments led to an increase in soil bulk density, porosity and soil organic content. The application of green manure with BBRH and PTS treatments led to a significant increase in rice yield (5,330 and 5,320 kg ha -1 ) when compared to conventional fertilization. Based on the results, BBRH and PTS are good practices for production of green manure in paddy soil. Chemical fertilizers can be replaced with hairy vetch as green manure in rice-based cropping systems.
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Claims 7
Claim · model-written summary
Hairy vetch biomass and nitrogen production ranked BBRH > PTS > DS > GS across seeding methods.
- Taxon
- hairy vetch
Vicia villosae0 - Treatment
- different seeding methodse0
- Outcome
- biomass and nitrogen production of hairy vetche1
- Direction
- BBRH > PTS > DS > GSe1
- Setting
- Field experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted during one season (2007/2008) to evaluate the effects of different seeding methods on the biomass and N production of hairy vetch ( Vicia villosa ) and barley ( Hordeum vuglare )”
e1“The overall results showed the following ranking of biomass and nitrogen production of hairy vetch by different seeding methods: BBRH > PTS > DS > GS”
Claim · model-written summary
Barley biomass and nitrogen production were lower than those of hairy vetch at all tested seeding treatments.
- Taxon
- barley
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Hordeum vulgaree0 - Treatment
- all tested seeding treatmentse2
- Outcome
- biomass and nitrogen production of barleye2
- Direction
- lowere2
- Comparator
- hairy vetche2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Field experiments were conducted during one season (2007/2008) to evaluate the effects of different seeding methods on the biomass and N production of hairy vetch ( Vicia villosa ) and barley ( Hordeum vuglare )”
e2“Additionally, biomass and nitrogen production of barley was lower than those of hairy vetch at all tested seeding treatments”
Claim · model-written summary
BBRH and PTS increased soil bulk density, porosity and soil organic content in paddy soil.
- Taxon
- rice yield in rice-based cropping systemst0
- Treatment
- BBRH and PTS treatmentse3
- Outcome
- soil bulk density, porosity and soil organic contente3
- Direction
- increasee3
Not reportedComparator
Verbatim
t0“rice yield in rice-based cropping systems”
e3“BBRH and PTS treatments led to an increase in soil bulk density, porosity and soil organic content”
Claim · model-written summary
BBRH significantly increased rice yield to 5,330 compared with conventional fertilization.
- Taxon
- rice
Oryza sativae4 - Treatment
- BBRHe4
- Outcome
- rice yielde4
- Direction
- increasee4
- Value
- 5,330e4
- Comparator
- conventional fertilizatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of green manure with BBRH and PTS treatments led to a significant increase in rice yield (5,330 and 5,320 kg ha -1 ) when compared to conventional fertilization”
Claim · model-written summary
PTS significantly increased rice yield to 5,320 compared with conventional fertilization.
- Taxon
- riceOryza sativae4
- Treatment
- PTSe4
- Outcome
- rice yielde4
- Direction
- increasee4
- Value
- 5,320e4
- Comparator
- conventional fertilizatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The application of green manure with BBRH and PTS treatments led to a significant increase in rice yield (5,330 and 5,320 kg ha -1 ) when compared to conventional fertilization”
Claim · model-written summary
BBRH and PTS are good practices for green manure production in paddy soil.
- Taxon
- riceOryza sativat0
- Treatment
- BBRH and PTSe5
- Outcome
- good practices for production of green manure in paddy soile5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice yield in rice-based cropping systems”
e5“BBRH and PTS are good practices for production of green manure in paddy soil”
Claim · model-written summary
Chemical fertilizers can be replaced with hairy vetch as green manure in rice-based cropping systems.
- Taxon
- hairy vetchVicia villosae6
- Outcome
- Chemical fertilizers can be replaced with hairy vetche6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Chemical fertilizers can be replaced with hairy vetch as green manure in rice-based cropping systems”
The same questions in other papers
tillage · yield · Oryza sativa (rice)Positive and negative results
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- positive
- positive
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See all 729 papers →transplanting · yield · Oryza sativa (rice)Positive and negative results
921 papers in the same direction as this paper · 132 in the opposite direction · 24 reporting no difference from an alternative
- no effect
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- no effect
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See all 1,078 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.