ISSN:
1573-5036
Schlagwort(e):
Apparent N
;
recovery
;
Denitrification
;
IBDU N
;
concentration
;
Neem cake
;
Nitrification inhibitors
;
Nitrapyrin (N-Serve)
;
N loss
;
N uptake
;
Rice
;
Sandy clay loam
;
Slow-release
;
N fertilizers
;
Sulphur-coated urea
;
Urea
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
Notizen:
Summary A field experiment conducted for two rainy seasons (1974 and 1975) on a sandy clay loam soil at the Indian Agricultural Research Institute, New Delhi showed that at 100kg N/ha the apparent recovery of urea nitrogen by the rice crop was only 28%, which was raised to 41.7% by treating urea with Nitrapyrin and to 47.4% by coating urea withneem (Azadirachta indica Juss) cake. The recovery with sulphur-coated urea was 37.7%. Dry matter production nitrogen concentration in plant and uptake by rice were increased as the rate of nitrogen was increased from 0 to 150kg N/ha. Advantage of treating urea with Nitrapyrin or coating withneem cake was seen more in grain than straw yield.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02182699
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