Abstract
Characteristics of rice dry matter accumulation and distribution in different water and fertilizer treatment,i.e.continuous submergence irrigation and alternate wet and dry irrigation(AWD) combined with three fertilizer level(F1,F2,F3),were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009,the rice breed was Xin-Liangyouxiang 4.The results showed that the accumulation of dry matter of rice performed the same dynamic trends under different water and fertilizer treatment.The accumulation of dry matter of early stage of tiller growth increased firstly with the rise of use of fertilizer(N and P),then decreased in the sequel,no significant difference was found between different irrigation mode.The accumulation of dry matter of different water and fertilizer treatment increased evidently from later stage of tiller growth to tasseling stage and showed significant difference,the accumulation of dry matter of continuous submergence irrigation mode were respectively 12.1%,22.1%,61.9% bigger than that of AWD accordingly with the fertilizer level F1,F2,F3 at tasseling stage.The summit of net dry matter accumulation(NDMA) and community growth rate(CGR) of AWD changed from tasseling stage-milk stage at F1 to later stage of tiller growth-heading stage at F2 and F3,and increased significantly.The distribution of dry matter of organs of yellow maturing stage of different water and fertilizer treatment were different from each other,but performed the same trends,it was grain,stem,leaf,root.The harvest index of rice of different irrigation mode decreased with the rise of use of fertilizer.The harvest index of continuous submergence irrigation mode decreased obviously,comparing with F1,it respectively decreased 12.4% at F2 and 17.9% at F3.The regression for dry matter accumulation over the rice growing and developing course showed that it could be fit by cubic equation better than that by Logistic equation.
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Claims 12
Claim · model-written summary
Higher fertilizer (N and P) use raised early tiller-stage dry matter accumulation, which then decreased.
- Taxon
- rice
Oryza sativae0 - Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- early stage of tiller growthe3
- Treatment
- use of fertilizer(N and P)e3
- Outcome
- accumulation of dry mattere3
- Direction
- increasede3
- Qualifier
- then decreased in the sequele3
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e3“The accumulation of dry matter of early stage of tiller growth increased firstly with the rise of use of fertilizer(N and P),then decreased in the sequel,no significant difference was found between different irrigation mode”
Claim · model-written summary
Irrigation mode made no significant difference to early tiller-stage dry matter accumulation.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- early stage of tiller growthe3
- Treatment
- different irrigation modee3
- Outcome
- accumulation of dry mattere3
- Direction
- no_changeinferrede3
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e3“The accumulation of dry matter of early stage of tiller growth increased firstly with the rise of use of fertilizer(N and P),then decreased in the sequel,no significant difference was found between different irrigation mode”
Claim · model-written summary
Dry matter accumulation increased significantly from later tiller growth to the tasseling stage under the water and fertilizer treatments.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- from later stage of tiller growth to tasseling stagee4
- Treatment
- different water and fertilizer treatmente4
- Outcome
- accumulation of dry mattere4
- Direction
- increasede4
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e4“The accumulation of dry matter of different water and fertilizer treatment increased evidently from later stage of tiller growth to tasseling stage and showed significant difference”
Claim · model-written summary
Continuous submergence dry matter accumulation was 12.1% higher than AWD at fertilizer level F1 at the tasseling stage.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- tasseling stagee5
- Treatment
- continuous submergence irrigation modee5
- Outcome
- accumulation of dry mattere5
- Direction
- biggere5
- Value
- 12.1%e5
- Qualifier
- fertilizer level F1e5
- Comparator
- AWDe5
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e5“the accumulation of dry matter of continuous submergence irrigation mode were respectively 12.1%,22.1%,61.9% bigger than that of AWD accordingly with the fertilizer level F1,F2,F3 at tasseling stage”
Claim · model-written summary
Continuous submergence dry matter accumulation was 22.1% higher than AWD at fertilizer level F2 at the tasseling stage.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- tasseling stagee5
- Treatment
- continuous submergence irrigation modee5
- Outcome
- accumulation of dry mattere5
- Direction
- biggere5
- Value
- 22.1%e5
- Qualifier
- F2e5
- Comparator
- AWDe5
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e5“the accumulation of dry matter of continuous submergence irrigation mode were respectively 12.1%,22.1%,61.9% bigger than that of AWD accordingly with the fertilizer level F1,F2,F3 at tasseling stage”
Claim · model-written summary
Continuous submergence dry matter accumulation was 61.9% higher than AWD at fertilizer level F3 at the tasseling stage.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- tasseling stagee5
- Treatment
- continuous submergence irrigation modee5
- Outcome
- accumulation of dry mattere5
- Direction
- biggere5
- Value
- 61.9%e5
- Qualifier
- F3e5
- Comparator
- AWDe5
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e5“the accumulation of dry matter of continuous submergence irrigation mode were respectively 12.1%,22.1%,61.9% bigger than that of AWD accordingly with the fertilizer level F1,F2,F3 at tasseling stage”
Claim · model-written summary
Under AWD, net dry matter accumulation and community growth rate peaked and increased significantly from tasseling-milk stage at F1 to later tillering-heading stage at F2 and F3.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Treatment
- AWDe6
- Outcome
- summit of net dry matter accumulation(NDMA) and community growth rate(CGR)e6
- Direction
- increasede6
- Qualifier
- at F2 and F3e6
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e6“The summit of net dry matter accumulation(NDMA) and community growth rate(CGR) of AWD changed from tasseling stage-milk stage at F1 to later stage of tiller growth-heading stage at F2 and F3,and increased significantly”
Claim · model-written summary
Dry matter was distributed among organs in the order grain, stem, leaf, root at the yellow maturing stage.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Organ / stage
- yellow maturing stagee7
- Treatment
- different water and fertilizer treatmente7
- Outcome
- distribution of dry matter of organse7
- Qualifier
- grain, stem, leaf, roote7
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e7“The distribution of dry matter of organs of yellow maturing stage of different water and fertilizer treatment were different from each other,but performed the same trends,it was grain,stem,leaf,root”
Claim · model-written summary
Higher fertilizer use decreased the harvest index of rice.
- Taxon
- riceOryza sativae3
- Material
- Xin-Liangyouxiang 4e1
- Treatment
- use of fertilizere3
- Outcome
- harvest indexe3
- Direction
- decreasede3
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e3“The harvest index of rice of different irrigation mode decreased with the rise of use of fertilizer”
Claim · model-written summary
Continuous submergence harvest index decreased by 12.4% at F2 compared with F1.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Treatment
- continuous submergence irrigation modee4
- Outcome
- harvest indexe4
- Direction
- decreasede4
- Value
- 12.4%e4
- Qualifier
- at F2e4
- Comparator
- F1e4
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e4“The harvest index of continuous submergence irrigation mode decreased obviously,comparing with F1,it respectively decreased 12.4% at F2 and 17.9% at F3”
Claim · model-written summary
Continuous submergence harvest index decreased by 17.9% at F3 compared with F1.
- Taxon
- riceOryza sativae0
- Material
- Xin-Liangyouxiang 4e1
- Treatment
- continuous submergence irrigation modee4
- Outcome
- harvest indexe4
- Direction
- decreasede4
- Value
- 17.9%e4
- Qualifier
- at F3e4
- Comparator
- F1e4
- Setting
- experimental farm of Centre Irrigation Experiment Station of Hubei provincee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Characteristics of rice dry matter accumulation”
e1“the rice breed was Xin-Liangyouxiang 4”
e2“were studied in experimental farm of Centre Irrigation Experiment Station of Hubei province from May to Sep in 2009”
e4“The harvest index of continuous submergence irrigation mode decreased obviously,comparing with F1,it respectively decreased 12.4% at F2 and 17.9% at F3”
Claim · model-written summary
A cubic equation fit rice dry matter accumulation better than a Logistic equation.
- Taxon
- riceOryza sativae5
- Outcome
- regression for dry matter accumulatione5
- Direction
- bettere5
- Qualifier
- cubic equatione5
- Comparator
- Logistic equatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The regression for dry matter accumulation over the rice growing and developing course showed that it could be fit by cubic equation better than that by Logistic equation”
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