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The water balance of post-monsoonal dryland crops

Published online by Cambridge University Press:  27 March 2009

J. F. Angus ,
S. Hasegawat ,
T. C. Hsiao ,
S. P. Liboon  and
H. G. Zandstra
J. F. Angus
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
S. Hasegawat
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
T. C. Hsiao
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
S. P. Liboon
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
H. G. Zandstra
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
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Summary

Six dryland crops (mungbean, cow pea, soya bean, groundnut, maize and sorghum) and two rice cultivars (C·171·136 and IR 36) were grown under rainfed and irrigated conditions on a dryland site with a clay loam soil at the International Rice Research Institute, Philippines. After the first 30 days of growth there was no effective rain, and the rainfed crops encountered different water deficits. Crop productivity, leaf area, plant water status, root distribution, and soil water use were measured.

Neither rice cultivar yielded seed under rainfed conditions, but all other crops did. With mungbean and cow pea there was little difference between the yields under rainfed and irrigated conditions, but groundnut, soya bean, sorghum and maize gave higher yields under irrigation.

The rainfed crops extracted different amounts of stored soil water, ranging from 100 mm for IR 36 to 250 mm for groundnut. The different amounts were associated with different growth durations, rooting depths and rates of soil water depletion from within the root zone. Biological productivity of the six rainfed crops with the C 3 photosynthetic pathway was linearly related to transpiration, which was estimated from soil water extraction and soil evaporation. Biological productivity per unit of transpiration for the two crops with the C 4 pathway was 2·2 times higher than for those with the C 3 pathway. The different seed yields of the rainfed crops were due to differences in harvest index and the chemical composition of seeds, as well as to biological productivity.

The results are discussed in relation to the potential for growing dryland crops after rice in rice-based cropping systems.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 3 , December 1983 , pp. 699 - 710
Copyright
Copyright © Cambridge University Press 1983

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References

Bubch, G. J., Smith, R. C. G. & Masen, W. K. (1978). Agronomic and physiological responses of soya bean and sorghum crops to water deficits. II. Crop evaporation, soil water depletion and root distribution. Australian Journal of Plant Physiology 5, 169–177.Google Scholar
Day, W., Lego, B. J., French, B. K., Johnston, A. E., Lawlob, D. W. & Jeffers, DE C., W. (1978). A drought experiment using mobile shelters: the effects of drought on barley yield, water use and nutrient uptake. Journal of Agricultural Science, Cambridge 91, 599–623.CrossRefGoogle Scholar
Fischer, R. A. & Turner, N. C. (1978). Plaint productivity in the arid and semiarid zones. Annual Review of Plant Physiology 29, 277–317.Google Scholar
Hasegawa, S. & Yoshida, S. (1982). Water uptake by a dryland rice root system during a soil drying cycle. Soil Science and Plant Nutrition 28, 191–204.Google Scholar
Lego, B. J., Day, W., Lawlor, D. W. & Pabkinson, K. J. (1979). The effects of drought on barley growth: models and measurements showing the relative importance of leaf area and photosynthetic rate. Journal of Agricultural Science, Cambridge 92, 703–716.CrossRefGoogle Scholar
Penning De Vries, F. W. T. (1975). Use of assimilates in higher plants. In Photosynthesis and Productivity in Different Environments (ed. Cooper, J. P.), pp. 459–480. Cambridge: Cambridge University Press.Google Scholar
Rawson, H. M., Bego, J. E. & Woodward, R. G. (1978). The effect of atmospheric humidity on photosynthesis, transpiration and water use efficiency of leaves of several plant species. Planta 134, 5–10.CrossRefGoogle Scholar
Syarifuddin, A. & Zandstra, H. G. (1981). Soil fertility, tillage, and mulching effects of rainfed maize grain after rice. Research Paper Series No. 66. LosBaños, Philippines: The International Rice Research Institute.Google Scholar
Tanneb, C. B. & Sinclair, T. R. (1983). Efficient water use in crop production: research or re-search. In Limitations to Efficient Water Use in Crop Production (ed. Taylor, H. M., Jordan, W. A. and Sinclair, T. R.), ASA Monograph Series. Madison, Wisconsin: American Society of Agronomy (in the Press).Google Scholar
Watt, B. K. & Merrill, A. L. (1963). Composition of food – raw, processed, prepared. Agriculture Handbook No. 8. Agricultural Research Service, Washington, D. C.: U.S.D.A.Google Scholar
Willatt, S. T. & Taylor, H. M. (1978). Water uptake by soya-bean roots as affected by their depth and by soil water content. Journal of Agricultural Science, Cambridge 90, 205–213.CrossRefGoogle Scholar
Zandstra, H. G. (1977). Cropping systems research for the Asian rice farmer. In Symposium on Cropping Systems Research and Development for the Asian Rice Farmer, pp. 11–30. Los Baños, Philippines: The International Rice Research Institute.Google Scholar