Abstract
Pot experments wer ocnducted to investigate the effects of controlled relase fertilizer (CRF), applyed as only one basal, on nitrogen release and rice absorbing dynamic. It was observed that th maximum N releasing date of the CFR treatment appeared by 8th to 10th day, and the perild of sufficient N supply was maintiained for 40-50d for late crops and 50-60d for early crops after peak date. However, the maixmum N relaeasing date of teh rice special fertilizer as only one basal treament occurred at first day to third day, and the date of sufficienc N supply was maintained for 30-35d after peak date. In addition, the CRF miantiened relatively higher N supply than the specieal ric efertilizer treaments at late stages. N supplying levele the the CRF treament in the late crops was higher than that in the early crops. In comparison to the special fetilizer either in splits or as one basl, the rate of absorption for N and P the CRF treatment was ghiher at whole rice growth satge, and the K absorbing rate of the CRF treatment was higher at early growth stage, but lower at medium and late growth stage. The amount of acumulating absorpion for N, P and K of the CRF treatment reached maximum in the 3 fertilization treatments at harvest stage. The results slso showed that the CRF treatment trached maximum in the 3 fertilization treatments of harvest stage. THe results also showed that the CRF treatment hightened significantly fertilizer N utilization efficiency, and N utilization efficiency fo CRF was increased by 12.2-13.5% and 20.0-22.7% respectively, comparing to the special rice fertilizer in splits and as basal. Apart from N, and apllication of the CTRF aslo increased the utilization efficiency of P and K.
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Claims 14
Claim · model-written summary
With controlled release fertilizer the maximum N release date occurred at 8th to 10th day after application.
- Taxon
- rice
Oryza sativat0 - Treatment
- CFR treatmente1
- Outcome
- maximum N releasing datee1
- Value
- 8th to 10th daye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“th maximum N releasing date of the CFR treatment appeared by 8th to 10th day”
Claim · model-written summary
With the rice special fertilizer applied as one basal dose the maximum N release date occurred at first day to third day.
- Taxon
- riceOryza sativat0
- Treatment
- rice special fertilizere2
- Outcome
- maixmum N relaeasing datee2
- Value
- first day to third daye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e2“the maixmum N relaeasing date of teh rice special fertilizer as only one basal treament occurred at first day to third day”
Claim · model-written summary
Sufficient N supply lasted 40-50 d after peak date for late crops with controlled release fertilizer.
- Taxon
- riceOryza sativat0
- Outcome
- perild of sufficient N supplye3
- Value
- 40-50de3
- Qualifier
- late cropse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e3“the perild of sufficient N supply was maintiained for 40-50d for late crops and 50-60d for early crops”
Claim · model-written summary
Sufficient N supply lasted 50-60 d after peak date for early crops with controlled release fertilizer.
- Taxon
- riceOryza sativat0
- Outcome
- perild of sufficient N supplye3
- Value
- 50-60de3
- Qualifier
- early cropse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e3“the perild of sufficient N supply was maintiained for 40-50d for late crops and 50-60d for early crops”
Claim · model-written summary
Controlled release fertilizer maintained relatively higher N supply than the rice special fertilizer at late stages.
- Taxon
- riceOryza sativat0
- Organ / stage
- late stagese4
- Treatment
- CRFe4
- Outcome
- N supplye4
- Direction
- highere4
- Comparator
- specieal ric efertilizer treamentse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e4“the CRF miantiened relatively higher N supply than the specieal ric efertilizer treaments at late stages”
Claim · model-written summary
N supplying level under controlled release fertilizer was higher in late crops than in early crops.
- Taxon
- riceOryza sativat0
- Organ / stage
- late cropse5
- Treatment
- CRF treamente5
- Outcome
- N supplying levelee5
- Direction
- highere5
- Comparator
- early cropse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e5“N supplying levele the the CRF treament in the late crops was higher than that in the early crops”
Claim · model-written summary
Controlled release fertilizer increased the rate of absorption of N and P over the whole rice growth stage compared with the special fertilizer.
- Taxon
- riceOryza sativat0
- Organ / stage
- whole rice growth satgee6
- Treatment
- CRF treatmente6
- Outcome
- rate of absorption for N and Pe6
- Direction
- ghihere6
- Comparator
- special fetilizere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e6“In comparison to the special fetilizer either in splits or as one basl, the rate of absorption for N and P the CRF treatment was ghiher at whole rice growth satge”
Claim · model-written summary
Controlled release fertilizer increased K absorption rate at early growth stage.
- Taxon
- riceOryza sativat0
- Organ / stage
- early growth stagee7
- Treatment
- CRF treatmente7
- Outcome
- K absorbing ratee7
- Direction
- highere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e7“the K absorbing rate of the CRF treatment was higher at early growth stage, but lower at medium and late growth stage”
Claim · model-written summary
Controlled release fertilizer decreased K absorption rate at medium and late growth stage.
- Taxon
- riceOryza sativat0
- Organ / stage
- medium and late growth stagee7
- Treatment
- CRF treatmente7
- Outcome
- K absorbing ratee7
- Direction
- lowere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e7“the K absorbing rate of the CRF treatment was higher at early growth stage, but lower at medium and late growth stage”
Claim · model-written summary
Accumulated N, P and K absorption under controlled release fertilizer reached its maximum among the three fertilization treatments at harvest stage.
- Taxon
- riceOryza sativat0
- Organ / stage
- harvest stagee1
- Treatment
- CRF treatmente1
- Outcome
- amount of acumulating absorpion for N, P and Ke1
- Direction
- maximume1
- Comparator
- the 3 fertilization treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“The amount of acumulating absorpion for N, P and K of the CRF treatment reached maximum in the 3 fertilization treatments at harvest stage”
Claim · model-written summary
Controlled release fertilizer significantly increased fertilizer N utilization efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- CRF treatmente1
- Outcome
- fertilizer N utilization efficiencye1
- Direction
- hightenede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“THe results also showed that the CRF treatment hightened significantly fertilizer N utilization efficiency”
Claim · model-written summary
Controlled release fertilizer raised N utilization efficiency by 12.2-13.5% compared with the special rice fertilizer applied in splits.
- Taxon
- riceOryza sativat0
- Treatment
- CRFe1
- Outcome
- N utilization efficiencye1
- Direction
- increasede1
- Value
- 12.2-13.5%e1
- Qualifier
- in splitse1
- Comparator
- special rice fertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“N utilization efficiency fo CRF was increased by 12.2-13.5% and 20.0-22.7% respectively, comparing to the special rice fertilizer in splits and as basal”
Claim · model-written summary
Controlled release fertilizer raised N utilization efficiency by 20.0-22.7% compared with the special rice fertilizer applied as basal.
- Taxon
- riceOryza sativat0
- Treatment
- CRFe1
- Outcome
- N utilization efficiencye1
- Direction
- increasede1
- Value
- 20.0-22.7%e1
- Qualifier
- as basale1
- Comparator
- special rice fertilizere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“N utilization efficiency fo CRF was increased by 12.2-13.5% and 20.0-22.7% respectively, comparing to the special rice fertilizer in splits and as basal”
Claim · model-written summary
Controlled release fertilizer also increased the utilization efficiency of P and K.
- Taxon
- riceOryza sativat0
- Treatment
- CTRFe1
- Outcome
- utilization efficiency of P and Ke1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e1“Apart from N, and apllication of the CTRF aslo increased the utilization efficiency of P and K”
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