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AGRONOMIC AND ECONOMIC EVALUATION OF PERMANENT RAISED BEDS, NO TILLAGE AND STRAW MULCHING FOR AN IRRIGATED MAIZE-WHEAT SYSTEM IN NORTHWEST INDIA

Published online by Cambridge University Press:  18 August 2011

HARI RAM
Affiliation:
Punjab Agricultural University, Ludhiana -141 004 (Punjab), India
YADVINDER SINGH*
Affiliation:
Punjab Agricultural University, Ludhiana -141 004 (Punjab), India
K. S. SAINI
Affiliation:
Punjab Agricultural University, Ludhiana -141 004 (Punjab), India
D. S. KLER
Affiliation:
Punjab Agricultural University, Ludhiana -141 004 (Punjab), India
J. TIMSINA
Affiliation:
International Rice Research Institute, Dhaka, Bangladesh
E. J. HUMPHREYS
Affiliation:
International Rice Research Institute, Los Banos, Philippines
*
Corresponding author: Yadvinder16@rediffmail.com

Summary

No-tillage and raised beds are widely used for different crops in developed countries. A field experiment was conducted on an irrigated maize-wheat system to study the effect of field layout, tillage and straw mulch on crop performance, water use efficiency and economics for five years (2003–2008) in northwest India. Straw mulch reduced the maximum soil temperature at seed depth by about 3 °C compared to the no mulch. During the wheat emergence, raised beds recorded 1.3 °C higher soil temperature compared to the flat treatments. Both maize and wheat yields were similar under different treatments during all the years. Maize and wheat planted on raised beds recorded about 7.8% and 22.7% higher water use efficiency than under flat layout, respectively. Straw mulch showed no effect on water use and water use efficiency in maize. The net returns from the maize-wheat system were more in no tillage and permanent raised beds than with conventional tillage. Bulk density and cumulative infiltration were more in no tillage compared with conventional tillage.

Information

Type
Research Article
Copyright
Copyright © Cambridge University Press 2011

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