Abstract
Phosphorus is one of the most important elements for rice growth,and hyacinth can absorb large quantities of phosphorus and accumulate in their tissues.In this study,the field experiment was conducted to investigate the effects of hyacinth mulching on phosphorus(P) concentration,uptake,efficiency and allocation in rice plant at different growth stages.Yun 2645 was selected as the material,and two different levels of N input: Low(LN,120 kg hm-2) and normal N(NN,240 kg hm-2) were designed in 2009.The results showed that:(1) Compared with AMB(the treatment without hyacinth mulching),hyacinth mulching significantly increased phosphorus concentration in rice plant over the season and phosphorus accumulation in rice plant.(2) Hyacinth mulching had no significant effect on phosphorus allocation pattern in stems,leaves and spikes at different growth stages of rice.(3) Except for mid-tillering,hyacinth mulching resulted in a significant decrease in phosphorus use efficiency for biomass(PUEp) over the season and in phosphorus use efficiency for grain yield(PUEg) at grain maturity,but no effect was observed on phosphorus harvest index(PHI).(4) Hyacinth mulching significantly increased rice yield in 2009.(5) With the increasing of N application,phosphorus concentration and accumulation at most growth stages of rice increased(P 0.05 or 0.01),however PUEp and PUEg showed the opposite trends.(6) Interactions between hyacinth mulching×N were not observed for phosphorus uptake and utilization.Hyacinth mulching increased phosphorus concentration and uptake,but PUEp and PUEg were decreased at most growth stages of rice plant.
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Claims 8
Claim · model-written summary
Hyacinth mulch increased rice phosphorus concentration.
- Taxon
- rice
Oryza sativae0t0 - Treatment
- hyacinth mulchinge0
- Outcome
- phosphorus concentratione0
- Direction
- increasede0
- Comparator
- AMBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with AMB(the treatment without hyacinth mulching),hyacinth mulching significantly increased phosphorus concentration in rice plant over the season”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
Hyacinth mulch increased phosphorus accumulation.
- Taxon
- riceOryza sativae0t0
- Treatment
- hyacinth mulchinge0
- Outcome
- phosphorus accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hyacinth mulching significantly increased phosphorus concentration in rice plant over the season and phosphorus accumulation in rice plant”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
Hyacinth mulch did not significantly affect phosphorus allocation.
- Taxon
- riceOryza sativae0t0
- Treatment
- Hyacinth mulchinge0
- Outcome
- phosphorus allocation patterne0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hyacinth mulching had no significant effect on phosphorus allocation pattern in stems,leaves and spikes at different growth stages of rice.”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
Hyacinth mulch reduced biomass phosphorus use efficiency except at mid-tillering.
- Taxon
- riceOryza sativae0t0
- Treatment
- hyacinth mulchinge0
- Outcome
- phosphorus use efficiency for biomass(PUEp)e0
- Direction
- decreasee0
- Qualifier
- Except for mid-tilleringe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except for mid-tillering,hyacinth mulching resulted in a significant decrease in phosphorus use efficiency for biomass(PUEp) over the season”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
Hyacinth mulch increased rice yield in 2009.
- Taxon
- riceOryza sativae0t0
- Treatment
- Hyacinth mulchinge0
- Outcome
- rice yielde0
- Direction
- increasede0
- Qualifier
- 2009e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hyacinth mulching significantly increased rice yield in 2009.”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
Increasing nitrogen increased phosphorus concentration and accumulation.
- Taxon
- riceOryza sativae0t0
- Treatment
- increasing of N applicatione0
- Outcome
- phosphorus concentration and accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of N application,phosphorus concentration and accumulation at most growth stages of rice increased(P 0.05 or 0.01),however PUEp and PUEg showed the opposite trends.”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
Increasing nitrogen decreased phosphorus use efficiencies.
- Taxon
- riceOryza sativae0t0
- Treatment
- increasing of N applicatione0
- Outcome
- PUEp and PUEge0
- Direction
- opposite trendse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increasing of N application,phosphorus concentration and accumulation at most growth stages of rice increased(P 0.05 or 0.01),however PUEp and PUEg showed the opposite trends.”
t0“Rice Plant (Oryza sativa L.)”
Claim · model-written summary
No mulch by nitrogen interaction was observed for phosphorus uptake and use.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- hyacinth mulching×Ne0
- Outcome
- phosphorus uptake and utilizatione0
- Direction
- not observede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interactions between hyacinth mulching×N were not observed for phosphorus uptake and utilization.”
t0“Rice Plant (Oryza sativa L.)”
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