Abstract
Soil Zn deficiency and drought are serious stress factors limiting the Zn nutrition of crops in northwest China. Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau. Results show that Zn application does not increase the grain yield of winter wheat,but can increase the grain Zn contents. The increases are varied with the Zn application methods,the grain Zn contents are increased by about 40%,up to 40 mg / kg for foliar application and soil + foliar application,not significant with soil application,although the soil DTPA- Zn is triply increased.Zinc use efficiency of the foliar applied Zn is higher than those of the soil and soil + foliar applied Zn. Each one kg / ha foliar applied Zn is observed to be able to increase the grain Zn content by 6. 70-13. 04 mg / kg. The grain Zn utilization and total Zn utilization efficiency are respectively 6. 02%-9. 40% and 19. 78%-30. 91% for the foliar applied Zn,which are correspondingly 80 and 132- 221 times more than those for the soil applied Zn. Nitrogenrates have no effect on the yield and Zn utilization. Therefore,the foliar application of Zn is more cost-effective and environmental friendly than the soil application,and is one of the important practices to improve grain Zn concentration on Zn- deficient soils in dryland areas of northwestern China.
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Claims 10
Claim · model-written summary
Zn application did not increase the grain yield of winter wheat.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- Zn applicatione1
- Outcome
- grain yielde1
- Direction
- does not increasee1
- Setting
- middle part of Loess Plateaue0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e1“Zn application does not increase the grain yield of winter wheat,but can increase the grain Zn contents”
Claim · model-written summary
Foliar and soil plus foliar Zn application increased grain Zn content by about 40%, up to 40 mg/kg.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- foliar application and soil + foliar applicatione2
- Outcome
- grain Zn contentse2
- Direction
- increasede2
- Value
- about 40%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e2“the grain Zn contents are increased by about 40%,up to 40 mg / kg for foliar application and soil + foliar application,not significant with soil application”
Claim · model-written summary
Soil application of Zn did not significantly change grain Zn content of winter wheat.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- soil applicatione2
- Outcome
- grain Zn contentse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e2“the grain Zn contents are increased by about 40%,up to 40 mg / kg for foliar application and soil + foliar application,not significant with soil application”
Claim · model-written summary
Each 1 kg/ha of foliar applied Zn increased grain Zn content by 6.70-13.04 mg/kg.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- one kg / ha foliar applied Zne3
- Outcome
- grain Zn contente3
- Direction
- increasee3
- Value
- 6. 70-13. 04 mg / kge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e3“Each one kg / ha foliar applied Zn is observed to be able to increase the grain Zn content by 6. 70-13. 04 mg / kg”
Claim · model-written summary
Grain Zn utilization of foliar applied Zn was 6.02%-9.40%.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- foliar applied Zne4
- Outcome
- grain Zn utilizatione4
- Value
- 6. 02%-9. 40%e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e4“The grain Zn utilization and total Zn utilization efficiency are respectively 6. 02%-9. 40% and 19. 78%-30. 91% for the foliar applied Zn”
Claim · model-written summary
Total Zn utilization efficiency of foliar applied Zn was 19.78%-30.91%.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- foliar applied Zne4
- Outcome
- total Zn utilization efficiencye4
- Value
- 19. 78%-30. 91%e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e4“The grain Zn utilization and total Zn utilization efficiency are respectively 6. 02%-9. 40% and 19. 78%-30. 91% for the foliar applied Zn”
Claim · model-written summary
Zinc use efficiency of foliar applied Zn was higher than that of soil and soil plus foliar applied Zn.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- foliar applied Zne6
- Outcome
- Zinc use efficiencye6
- Direction
- highere6
- Comparator
- soil and soil + foliar applied Zne6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e6“Zinc use efficiency of the foliar applied Zn is higher than those of the soil and soil + foliar applied Zn”
Claim · model-written summary
Grain and total Zn utilization of foliar applied Zn were 80 and 132-221 times those of soil applied Zn.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- foliar applied Zne4
- Outcome
- grain Zn utilization and total Zn utilization efficiencye4
- Direction
- times moree5
- Value
- 80 and 132- 221 timese5
- Comparator
- soil applied Zne5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e4“The grain Zn utilization and total Zn utilization efficiency are respectively 6. 02%-9. 40% and 19. 78%-30. 91% for the foliar applied Zn”
e5“which are correspondingly 80 and 132- 221 times more than those for the soil applied Zn”
Claim · model-written summary
Nitrogen rates had no effect on yield and Zn utilization of winter wheat.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Nitrogenratese7
- Outcome
- yield and Zn utilizatione7
- Direction
- no effecte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e7“Nitrogenrates have no effect on the yield and Zn utilization”
Claim · model-written summary
The authors recommend foliar Zn application over soil application as more cost-effective and environmentally friendly for raising grain Zn concentration of wheat.
- Taxon
- winter wheatTriticum aestivume0
- Outcome
- the foliar application of Zne1
- Comparator
- soil applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field experiments were conducted to study the effects of soil application,foliar application and soil + foliar application of Zn on yield,Zn contents and accumulation in grain,and Zn use efficiency of winter wheat grown under two N rates at two locations in the middle part of Loess Plateau”
e1“Therefore,the foliar application of Zn is more cost-effective and environmental friendly than the soil application”
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See all 275 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.