Abstract
In pot experiments with spring wheat and oats the application of the urease inhibitor phosphoric acid phenyl ester diamide (PPDA) in addition to top dressing with /sup 15/N-urea revealed a 10% better utilization of the /sup 15/N-urea by the plant (related to the N amount applied). The loss-reducing effect of PPDA was especially felt when there were favourable conditions for NH/sub 3/ volatilization such as rapid hydrolysis of urea on the wet surface of light soil during shooting of the wheat. PPDA did not have any adverse influence on the course of the nitrogen uptake by the cereals during the time of shooting from the urea applied in top dressing. The utilization of the urea-N by the wheat, being about 5 to 6% lower in comparison to ammonium nitrate, under conditions that do not allow NH/sub 3/ losses, is to be attributed to the increased immobilization of the urea-N in the soil. The processes responsible for the nitrogen losses were concluded 3 to 4 weeks after top dressing to the cereals during the shooting period.
Matzel, W;
Mueller, S;
Lippold, H;
Heber, R
[1]
- Akademie der Landwirtschaftswissenschaften der DDR, Leipzig-Potsdam. Inst. fuer Duengungsforschung
Citation Formats
Matzel, W, Mueller, S, Lippold, H, and Heber, R.
Effect of the urease inhibitor phosphoric acid phenyl ester diamide on the utilization of urea-N in top dressing of spring wheat and oats.
Germany: N. p.,
1979.
Web.
Matzel, W, Mueller, S, Lippold, H, & Heber, R.
Effect of the urease inhibitor phosphoric acid phenyl ester diamide on the utilization of urea-N in top dressing of spring wheat and oats.
Germany.
Matzel, W, Mueller, S, Lippold, H, and Heber, R.
1979.
"Effect of the urease inhibitor phosphoric acid phenyl ester diamide on the utilization of urea-N in top dressing of spring wheat and oats."
Germany.
@misc{etde_5246809,
title = {Effect of the urease inhibitor phosphoric acid phenyl ester diamide on the utilization of urea-N in top dressing of spring wheat and oats}
author = {Matzel, W, Mueller, S, Lippold, H, and Heber, R}
abstractNote = {In pot experiments with spring wheat and oats the application of the urease inhibitor phosphoric acid phenyl ester diamide (PPDA) in addition to top dressing with /sup 15/N-urea revealed a 10% better utilization of the /sup 15/N-urea by the plant (related to the N amount applied). The loss-reducing effect of PPDA was especially felt when there were favourable conditions for NH/sub 3/ volatilization such as rapid hydrolysis of urea on the wet surface of light soil during shooting of the wheat. PPDA did not have any adverse influence on the course of the nitrogen uptake by the cereals during the time of shooting from the urea applied in top dressing. The utilization of the urea-N by the wheat, being about 5 to 6% lower in comparison to ammonium nitrate, under conditions that do not allow NH/sub 3/ losses, is to be attributed to the increased immobilization of the urea-N in the soil. The processes responsible for the nitrogen losses were concluded 3 to 4 weeks after top dressing to the cereals during the shooting period.}
journal = []
volume = {23:8}
journal type = {AC}
place = {Germany}
year = {1979}
month = {Jan}
}
title = {Effect of the urease inhibitor phosphoric acid phenyl ester diamide on the utilization of urea-N in top dressing of spring wheat and oats}
author = {Matzel, W, Mueller, S, Lippold, H, and Heber, R}
abstractNote = {In pot experiments with spring wheat and oats the application of the urease inhibitor phosphoric acid phenyl ester diamide (PPDA) in addition to top dressing with /sup 15/N-urea revealed a 10% better utilization of the /sup 15/N-urea by the plant (related to the N amount applied). The loss-reducing effect of PPDA was especially felt when there were favourable conditions for NH/sub 3/ volatilization such as rapid hydrolysis of urea on the wet surface of light soil during shooting of the wheat. PPDA did not have any adverse influence on the course of the nitrogen uptake by the cereals during the time of shooting from the urea applied in top dressing. The utilization of the urea-N by the wheat, being about 5 to 6% lower in comparison to ammonium nitrate, under conditions that do not allow NH/sub 3/ losses, is to be attributed to the increased immobilization of the urea-N in the soil. The processes responsible for the nitrogen losses were concluded 3 to 4 weeks after top dressing to the cereals during the shooting period.}
journal = []
volume = {23:8}
journal type = {AC}
place = {Germany}
year = {1979}
month = {Jan}
}