Abstract
In order to clarify the effect of zinc fertilization on the amounts of accumulation and transportation of N,P,K and Zn in above-ground organs of wheat,a field experiment with four zinc levels(ZnSO_4·7H_2O 0,11.25,22.5 and 33.75 kg/ha) was conducted on the Teaching and Demonstration Farm of Agricultural University of Hebei during 2001—2002.Two winter wheat cultivars 8901-11 and 4185 were used as experimental materials.The results showed that the concentration of Zn in various organs ranged from 4.14 to 54.18 mg/kg,with the order: grains husks leaves stems at anthesis and early grain filling period,and the order of grains leaves husks stems during late grain filling period.The amount of Zn required for 100 kg grain production ranged from 4.40 to 5.20 g.The accumulation of Zn at maturity was accounted for about 1/800—1/700 of N or K_2O,and about 1/500—1/300 of P_2O_5 respectively.Zinc(application) could enhance the accumulation of N,P,K and Zn in above-ground organs.And the transportation rate to grains also increased due to the increase of zinc fertilization.However,excess zinc fertilization could lower accumulation and transportation of these nutrients.Nutrient uptake and accumulation patterns were different for those tow cultivars,4185 had a stronger N and P uptake capacity before anthesis,while 8901-11 had a stronger uptake capacity on N and P after anthesis.The K and Zn uptake capacity of those two cultivars show a reversed pattern with that of N and P uptake before and after anthesis.The accumulation of N,P,K and Zn in 8901-11 went up with the increasing zinc fertilization.The highest accumulation was observed when the application rate of ZnSO_4·7H_2O was 22.5—33.75 kg/ha.The highest accumulation by 4185 was observed when the ZnSO_4·7H_2O application rate was 11.25 kg/ha.Therefore,we can conclude,with enough macro-element supply,the optimum rate of zinc fertilization was 11.25 kg/ha for the cultivar 4185,but 22.5—33.75 kg/ha for the cultivars 8901-11.
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Claims 18
Claim · model-written summary
Zinc concentration across wheat organs ranged from 4.14 to 54.18 mg/kg.
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- concentration of Zn in various organse0
- Value
- 4.14 to 54.18 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the concentration of Zn in various organs ranged from 4.14 to 54.18 mg/kg”
t0“wheat”
Claim · model-written summary
Zinc concentration ranked grains, husks, leaves, stems at anthesis and early filling.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grains husks leaves stemse0
- Qualifier
- at anthesis and early grain filling periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the order: grains husks leaves stems at anthesis and early grain filling period”
t0“wheat”
Claim · model-written summary
Zinc concentration ranked grains, leaves, husks, stems during late filling.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- grains leaves husks stemse0
- Qualifier
- during late grain filling periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the order of grains leaves husks stems during late grain filling period”
t0“wheat”
Claim · model-written summary
Zinc required for 100 kg grain ranged from 4.40 to 5.20 g.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- amount of Zn required for 100 kg grain productione0
- Value
- 4.40 to 5.20 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount of Zn required for 100 kg grain production ranged from 4.40 to 5.20 g”
t0“wheat”
Claim · model-written summary
Mature zinc accumulation was about 1/800–1/700 of N or K2O and 1/500–1/300 of P2O5.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- accumulation of Zn at maturitye0
- Value
- 1/800—1/700e0
- Qualifier
- 1/500—1/300 of P_2O_5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of Zn at maturity was accounted for about 1/800—1/700 of N or K_2O,and about 1/500—1/300 of P_2O_5 respectively”
t0“wheat”
Claim · model-written summary
Zinc application enhanced N, P and K accumulation in above-ground organs.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Zinc(application)e0
- Outcome
- accumulation of N,P,Ke0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc(application) could enhance the accumulation of N,P,K and Zn in above-ground organs”
t0“wheat”
Claim · model-written summary
Zinc application enhanced Zn accumulation in above-ground organs.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Zinc(application)e0
- Outcome
- Zn in above-ground organse0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc(application) could enhance the accumulation of N,P,K and Zn in above-ground organs”
t0“wheat”
Claim · model-written summary
Higher zinc fertilization increased nutrient transport to grains.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- increase of zinc fertilizatione0
- Outcome
- transportation rate to grainse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the transportation rate to grains also increased due to the increase of zinc fertilization”
t0“wheat”
Claim · model-written summary
Excess zinc fertilization lowered nutrient accumulation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- excess zinc fertilizatione0
- Outcome
- accumulatione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess zinc fertilization could lower accumulation and transportation of these nutrients”
t0“wheat”
Claim · model-written summary
Excess zinc fertilization lowered nutrient transportation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- excess zinc fertilizatione0
- Outcome
- transportation of these nutrientse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess zinc fertilization could lower accumulation and transportation of these nutrients”
t0“wheat”
Claim · model-written summary
Cultivar 4185 had stronger N and P uptake before anthesis.
- Taxon
- wheatTriticum aestivumt0
- Material
- 4185e0
- Outcome
- N and P uptake capacitye0
- Direction
- strongere0
- Qualifier
- before anthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4185 had a stronger N and P uptake capacity before anthesis,while 8901-11 had a stronger uptake capacity on N and P after anthesis”
t0“wheat”
Claim · model-written summary
Cultivar 8901-11 had stronger N and P uptake after anthesis.
- Taxon
- wheatTriticum aestivumt0
- Material
- 8901-11e0
- Outcome
- uptake capacity on N and Pe0
- Direction
- strongere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“8901-11 had a stronger uptake capacity on N and P after anthesis”
t0“wheat”
Claim · model-written summary
K and Zn uptake showed the reverse cultivar pattern to N and P.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- K and Zn uptake capacitye0
- Qualifier
- reversed pattern with that of N and P uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The K and Zn uptake capacity of those two cultivars show a reversed pattern with that of N and P uptake before and after anthesis”
t0“wheat”
Claim · model-written summary
N, P, K and Zn accumulation rose with zinc fertilization in 8901-11.
- Taxon
- wheatTriticum aestivumt0
- Material
- 8901-11e0
- Treatment
- increasing zinc fertilizatione0
- Outcome
- accumulation of N,P,K and Zne0
- Direction
- went upe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of N,P,K and Zn in 8901-11 went up with the increasing zinc fertilization”
t0“wheat”
Claim · model-written summary
Accumulation in 8901-11 was highest at 22.5–33.75 kg/ha zinc sulfate.
- Taxon
- wheatTriticum aestivumt1
- Material
- 8901-11t0
- Treatment
- 22.5—33.75 kg/hae0
- Outcome
- accumulatione0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest accumulation was observed when the application rate of ZnSO_4·7H_2O was 22.5—33.75 kg/ha”
t0“accumulation of N,P,K and Zn in 8901-11”
t1“wheat”
Claim · model-written summary
Accumulation in 4185 was highest at 11.25 kg/ha zinc sulfate.
- Taxon
- wheatTriticum aestivumt0
- Material
- 4185e0
- Treatment
- 11.25 kg/hae0
- Outcome
- accumulatione0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest accumulation by 4185 was observed when the ZnSO_4·7H_2O application rate was 11.25 kg/ha”
t0“wheat”
Claim · model-written summary
The authors recommend 11.25 kg/ha zinc sulfate for cultivar 4185 with adequate macroelements.
- Taxon
- wheatTriticum aestivumt0
- Material
- 4185e0
- Outcome
- optimum rate of zinc fertilization was 11.25 kg/hae0
- Qualifier
- with enough macro-element supplye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with enough macro-element supply,the optimum rate of zinc fertilization was 11.25 kg/ha for the cultivar 4185”
t0“wheat”
Claim · model-written summary
The authors recommend 22.5–33.75 kg/ha zinc sulfate for 8901-11 with adequate macroelements.
- Taxon
- wheatTriticum aestivumt0
- Material
- 8901-11e0
- Outcome
- 22.5—33.75 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“22.5—33.75 kg/ha for the cultivars 8901-11”
t0“wheat”
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