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Effects of Crotalaria and Sesbania aculeata green manures and N fertilizer on soil fertility and the productivity of sugarcane

Published online by Cambridge University Press:  05 August 2003

S. M. BOKHTIAR ,
M. A. GAFUR  and
A. B. M. M. RAHMAN
S. M. BOKHTIAR
Affiliation:
Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh
M. A. GAFUR
Affiliation:
Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh
A. B. M. M. RAHMAN
Affiliation:
Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh
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Abstract

The effects of green manuring with dhaincha (Sesbania aculeata) and sunhemp (Crotalaria juncea) in combination with four levels of urea-N (0, 75, 150 and 225 kg N/ha) on the productivity of a subsequent sugarcane (Saccharum officinarum) crop and the fertility of the soil were examined. C. juncea contributed more nitrogen to the soils when ploughed down than S. aculeata (56·7 v. 40·0 kg N/ha). The green manures and the supplemented urea-N increased cane yield by 2 to 26% and 26 to 57%, respectively. The organic matter, total N, available P and S of the soil was only slightly increased by the incorporation of green manures.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 140 , Issue 3 , May 2003 , pp. 305 - 309
Copyright
© 2003 Cambridge University Press

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