Abstract
The effects of sewage irrigation on the growth of rice seedlings and soil environment under wheat straw returning were examined with a pot experiment. Root morphology, root activity, tiller number, plant height, dry matter accumulation of rice seedling, soil ferrous ions content, organic acid content and enzyme activity were measured. The results showed that sewage irrigation significantly increased the number of tillers and root activity at 41 days after transplanting under no N fertilizer application. Under the same N input level, sewage irrigation combined with N fertilizer promoted the growth of rice seedlings and root, and increased the root length, root surface area, root volume, root activity, tiller number and dry matter accumulation. Sewage irrigation significantly reduced the contents of soil ferrous ions and organic acid, while significantly increased the activities of soil urease and catalase. These results indicated that the combination of sewage irrigation and N fertilizer could effectively reduce the negative effect of straw returning on rice seedling and thus enhance soil fertility and quality.
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Claims 9
Claim · model-written summary
Sewage irrigation increased rice tiller number without nitrogen fertilizer at 41 days after transplanting.
- Taxon
- rice
Oryza sativat0 - Treatment
- sewage irrigatione0
- Outcome
- number of tillerse0
- Direction
- increasede0
- Qualifier
- at 41 days after transplanting under no N fertilizer applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sewage irrigation significantly increased the number of tillers and root activity at 41 days after transplanting under no N fertilizer application”
t0“rice seedlings”
Claim · model-written summary
Sewage irrigation increased rice root activity without nitrogen fertilizer at 41 days after transplanting.
- Taxon
- riceOryza sativat0
- Treatment
- sewage irrigatione0
- Outcome
- root activitye0
- Direction
- increasede0
- Qualifier
- at 41 days after transplanting under no N fertilizer applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sewage irrigation significantly increased the number of tillers and root activity at 41 days after transplanting under no N fertilizer application”
t0“rice seedlings”
Claim · model-written summary
Sewage irrigation with nitrogen fertilizer promoted rice seedling and root growth at the same nitrogen input.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- sewage irrigation combined with N fertilizere0
- Outcome
- growth of rice seedlings and roote0
- Direction
- promotede0
- Comparator
- same N input levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the same N input level, sewage irrigation combined with N fertilizer promoted the growth of rice seedlings and root”
Claim · model-written summary
Sewage irrigation with nitrogen increased rice root length, surface area, and volume at the same nitrogen input.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- sewage irrigation combined with N fertilizere0
- Outcome
- root length, root surface area, root volumee0
- Direction
- increasede0
- Comparator
- same N input levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the same N input level, sewage irrigation combined with N fertilizer promoted the growth of rice seedlings and root, and increased the root length, root surface area, root volume, root activity, tiller number and dry matter accumulation”
Claim · model-written summary
Sewage irrigation with nitrogen increased rice root activity, tiller number, and dry matter accumulation.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- sewage irrigation combined with N fertilizere0
- Outcome
- root activity, tiller number and dry matter accumulatione0
- Direction
- increasede0
- Comparator
- same N input levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the same N input level, sewage irrigation combined with N fertilizer promoted the growth of rice seedlings and root, and increased the root length, root surface area, root volume, root activity, tiller number and dry matter accumulation”
Claim · model-written summary
Sewage irrigation reduced soil ferrous ions and organic acid contents.
- Taxon
- riceOryza sativat0
- Treatment
- Sewage irrigatione0
- Outcome
- contents of soil ferrous ions and organic acide0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sewage irrigation significantly reduced the contents of soil ferrous ions and organic acid”
t0“rice seedlings”
Claim · model-written summary
Sewage irrigation increased soil urease and catalase activities.
- Taxon
- riceOryza sativat0
- Treatment
- Sewage irrigatione0
- Outcome
- activities of soil urease and catalasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sewage irrigation significantly reduced the contents of soil ferrous ions and organic acid, while significantly increased the activities of soil urease and catalase”
t0“rice seedlings”
Claim · model-written summary
The authors conclude that combining sewage irrigation and nitrogen fertilizer reduces the negative effect of straw incorporation on rice seedlings.
- Taxon
- rice seedlingOryza sativae0
- Treatment
- combination of sewage irrigation and N fertilizere0
- Outcome
- reduce the negative effect of straw returning on rice seedlinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of sewage irrigation and N fertilizer could effectively reduce the negative effect of straw returning on rice seedling”
Claim · model-written summary
The authors conclude that combining sewage irrigation and nitrogen fertilizer enhances soil fertility and quality.
- Taxon
- rice seedlingOryza sativae0
- Treatment
- combination of sewage irrigation and N fertilizere0
- Outcome
- enhance soil fertility and qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of sewage irrigation and N fertilizer could effectively reduce the negative effect of straw returning on rice seedling and thus enhance soil fertility and quality”
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