foliar applications of uan32 in irrigated spring wheat
DESCRIPTION
Foliar Applications of UAN32 in Irrigated Spring Wheat. Ivan Ortiz-Monasterio CIMMYT. Materials and Methods Y05-06. Five soil N rates 0, 50, 100, 150, 200 kgN/ha (locations). Within each rate/location; two crops (Durum, Jupare and bread wheat, Kronstad) as main plots - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/1.jpg)
Foliar Applications of UAN32 in Irrigated Spring Wheat
Ivan Ortiz-MonasterioCIMMYT
![Page 2: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/2.jpg)
![Page 3: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/3.jpg)
![Page 4: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/4.jpg)
![Page 5: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/5.jpg)
![Page 6: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/6.jpg)
• Five soil N rates 0, 50, 100, 150, 200 kgN/ha (locations).
• Within each rate/location; two crops (Durum, Jupare and bread wheat, Kronstad) as main plots
• Four foliar N rates 0, 30, 60, 90 kgN/ha as subplots.
• Two reps• Plot size 1.8 x 5 m long (8 row plots, 20 cm
between rows).
Materials and MethodsY05-06
![Page 7: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/7.jpg)
Materials and MethodsY05-06
• Soil applications at planting with urea.
• Foliar applications with 295 L water/ha.
• Foliar application of 90 kgN/ha UAN 32 was 19 L UAN32 in a 20 L backpack sprayer.
![Page 8: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/8.jpg)
Materials and MethodsY05-06
• Planted Dec 02, 2005
• Foliar application with UAN32 on Jan 17, 2006.
• Zadoks stage Z31 (46 days after planting).
![Page 9: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/9.jpg)
![Page 10: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/10.jpg)
N SOIL (0kgN/ha)
Foliar Nitrogen (kg/ha)
0 30 60 90
Yie
ld (
kg/h
a)
0
2000
4000
6000
8000
10000
JupareKronstadPlot 1 Regr
8030 kg/ha Jupare6927 kg/ha Kronstad
97%
86%
![Page 11: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/11.jpg)
0 30 60 90
0
2000
4000
6000
8000
10000
N SOIL (50 kgN/ha)
Foliar Nitrogen (kg/ha)
Yie
ld (
kg/h
a)
JupareKronstadPlot 1 Regr
114%
106%
![Page 12: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/12.jpg)
0 30 60 90
0
2000
4000
6000
8000
10000
N SOIL (100 kgN/ha)
Foliar Nitrogen (kg/ha)
Yie
ld (
kg/h
a)
JupareKronstadPlot 1 Regr
106%
100%
![Page 13: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/13.jpg)
0 30 60 90
0
2000
4000
6000
8000
10000
N SOIL (150 kgN/ha)
Foliar Nitrogen (kg/ha)
Yie
ld (
kg/h
a)
JupareKronstadPlot 1 Regr
100%
91%
![Page 14: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/14.jpg)
0 30 60 90
0
2000
4000
6000
8000
10000
JupareKronstadPlot 1 Regr
N SOIL (200 kgN/ha)
Foliar Nitrogen (kg/ha)
Yie
ld (
kg/h
a)
100%
99%
![Page 15: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/15.jpg)
Soil N kg ha-1
0 50 100 150 200
Whe
at
yiel
d kg
ha-
1
3000
4000
5000
6000
7000
8000
9000
JupareKronstad
![Page 16: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/16.jpg)
![Page 17: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/17.jpg)
![Page 18: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/18.jpg)
![Page 19: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/19.jpg)
![Page 20: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/20.jpg)
![Page 21: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/21.jpg)
![Page 22: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/22.jpg)
![Page 23: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/23.jpg)
![Page 24: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/24.jpg)
![Page 25: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/25.jpg)
Conclusions
• As the rate of foliar N increased, levels of leaf necrosis also increased 9 DAA.
• Necrosis due to UAN32 foliar applications was higher in Kronstand than in Jupare.
• Both crops were able to fully recover by 36 DAA.
![Page 26: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/26.jpg)
Conclusions
• Foliar applications of UAN32 at Z31 are a viable alternative to fully correct N deficiency in wheat, except perhaps for Kronstad under sever N deficiency.
![Page 27: Foliar Applications of UAN32 in Irrigated Spring Wheat](https://reader031.vdocuments.mx/reader031/viewer/2022020111/56813c0e550346895da57f58/html5/thumbnails/27.jpg)
Thank you