Abstract
The author aims at the main nutritional characteritics and different effects of various applying ratios of nitrogen(N), phosphate(P) and potassium(K) on yield and quality of Brazilian upland rice IAPAR9, based on the field experiment with the orthogonal rotational combinatorial design.The results are as follows: the maximum tillers,effective ears,accumulation rate of dry matter and N application are highly correlated.The rice yield and P application are distinctly positively correlated.The rice yield and N, K application are highly positively correlated as well.The amount of K fertilization is positively related with seedgrain weight.N,P,K application and tillerbearing percent are of indistinct negative correlation.The effect of N,P,K application to brown rice and milled rice is not significantly different,while that of head rice,chalky rice,and protein content is significantly different. The correlation among main yield components characters of IAPAR9 is analysed.The results show that the effective tiller number,mean grains per panicle, 1000 grains weight and seedsetting percentage are positively correlated to actual yield.In addition, the improvement of actual yield in IAPAR9 could be achieved by increasing effective tiller and seedsetting percentage.
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Claims 9
Claim · model-written summary
Maximum tillers, effective ears, dry matter accumulation rate and N application were highly correlated.
Not reportedTaxonDirection
Verbatim
e0“the maximum tillers,effective ears,accumulation rate of dry matter and N application are highly correlated”
Claim · model-written summary
Rice yield was distinctly positively correlated with P application.
- Taxon
- rice
Oryza sativae0 - Treatment
- P applicatione0
- Outcome
- rice yielde0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rice yield and P application are distinctly positively correlated”
Claim · model-written summary
Rice yield was highly positively correlated with N and K application.
- Taxon
- riceOryza sativae0
- Treatment
- N, K applicatione0
- Outcome
- rice yielde0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rice yield and N, K application are highly positively correlated”
Claim · model-written summary
K fertilization was positively related to seed grain weight.
Not reportedTaxon
Verbatim
e0“The amount of K fertilization is positively related with seedgrain weight”
Claim · model-written summary
N, P and K application had an indistinct negative correlation with tiller bearing percent.
Not reportedTaxon
Verbatim
e0“N,P,K application and tillerbearing percent are of indistinct negative correlation”
Claim · model-written summary
N, P and K application did not differ significantly in its effect on brown and milled rice.
- Taxon
- riceOryza sativae0
- Treatment
- N,P,K applicatione0
- Outcome
- brown rice and milled ricee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of N,P,K application to brown rice and milled rice is not significantly different”
Claim · model-written summary
N, P and K application differed significantly in its effect on head rice, chalky rice and protein content.
- Outcome
- head rice,chalky rice,and protein contente0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“while that of head rice,chalky rice,and protein content is significantly different”
Claim · model-written summary
Effective tiller number, grains per panicle and thousand grain weight were positively correlated with actual yield.
Not reportedTaxonOrgan / stage
Verbatim
e0“the effective tiller number,mean grains per panicle, 1000 grains weight and seedsetting percentage are positively correlated to actual yield”
Claim · model-written summary
Increasing effective tillers and seed setting percentage could improve actual yield in IAPAR9.
- Outcome
- improvement of actual yielde0
- Qualifier
- increasing effective tiller and seedsetting percentagee0
Not reportedTaxon
Verbatim
e0“the improvement of actual yield in IAPAR9 could be achieved by increasing effective tiller and seedsetting percentage”
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