Hostname: page-component-5c6d5d7d68-sv6ng Total loading time: 0 Render date: 2024-08-20T23:25:27.894Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Mixed Row Cropping of Early and Late Maturing Rice Varieties on Crop Productivity under Intermediate Deepwater Conditions

Published online by Cambridge University Press:  03 October 2008

M. D. Reddy ,
A. R. Sharma  and
M. M. Panda
M. D. Reddy
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
A. R. Sharma
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
M. M. Panda
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
Get access Rights & Permissions [Opens in a new window]

Summary

Two early maturing semi-tall (120–130 cm) rice varieties, Kalinga-3 (85 days duration) and Banaprabha (95 days duration), were compared in pure and mixed crop stands under intermediate deepwater conditions (15–50 cm) with a modern late maturing (170 days duration) semi-dwarf (100 cm) variety, CR 1016. Parallel line seeding of CR 1016 and Kalinga-3 or Banaprabha in alternate rows (1:1 ratio) 20 cm apart yielded 19% more grain than a pure crop of CR 1016 alone. Mixed crop planting in a 1:2 or 2:1 ratio or with reduced inter-rovv spacing gave no additional yield advantage. Mixed row cropping prevented lodging in early varieties, whereas monocrops of the same varieties were partially lodged and showed some premature seed germination. The better and more stable yields obtained from such mixed cropping could be beneficial to resource poor farmers growing rice in conditions of excess water.

Type
Research Article
Information
Experimental Agriculture , Volume 27 , Issue 1 , January 1991 , pp. 79 - 85
Copyright
Copyright © Cambridge University Press 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Duara, D. N. (1975). The deepwater rice of Assam state. In Proceedings of the International Seminar on Deepwater Rice, 08 1974, 55–60. Dacca: Bangladesh Rice Research Institute.Google Scholar
Francis, P. & Griffin, G. (1982). Crop establishment practices for deepwater rice in Bangladesh. In Proceedings of the 1981 International Deepwater Rice Workshop, 415–424. Philippines: International Rice Research Institute.Google Scholar
Ghosh, D. C. & Maji, M. (1986). Growth and yield variation in rice cultivars grown in pure and mixed stand with varying fertility levels. Fertilizer News 31(7):32–35Google Scholar
Pande, H. K. & Reddy, M. D. (1984). Fertilizer use efficiency and water management in rice. Fertilizer News 29(4):17–26.Google Scholar
Rao, M. J. B. K. & Biswas, S. (1979). Rainfed lowland rice in India. In Rainfed Lowland Rice, 87–94. Philippines: International Rice Research Institute.Google Scholar
Subramanyam, K. (1987). Planting pattern and yield response of tall and dwarf cultivars of rice in mono-and mixed cultures. Oryza 24:30–36.Google Scholar
Yoshida, S. & Parao, F. T. (1976). Climatic influence on yield and yield components of lowland rice in the tropics. In Climate and Rice, 471–494. Philippines: International Rice Research Institute.Google Scholar