Summary
Laboratory incubation and pot culture experiments conducted with five laterite, two red, two alluvial and one calcareous black, rice-growing soils showed that the power of extraction of silica both from dry and wet soils was in the descending order 0.2 N HCl, 0.025 M citric acid, N NaOAc at pH 4 and distilled water. Flooding increased the silica extracted by these four extractants which reached a peak in 20 days after which there was either no change or a slight decrease during the next forty days. The silica content and uptake in the crop was low in all except the black soil. The silica content of the dry-season crop was higher than that of the wet-season crop possibly because of more favourable climatic conditions prevailing during dry season which enhanced absorption. Correlation studies between silica extracted by different solutions both in dry and flooded soils and content and uptake of silica by the rice plant indicated that 0.025 M citric acid was the best extractant which could be used in the evaluation of the silicon supplying power of rice soils. re]19761012
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Imaizumi, K. and Yoshida, S., Edaphological studies on the silicon supplying power of paddy soils. Bull. Nat. Inst. Agric. Sci. Tokyo, B8, 261–304 (1958).
Kawaguchi, K., Ojima, T. and Matsuo, Y., A study of available silica in paddy soils. I. J. Sci. Soil Manure, Japan, 28, 493–496 (1958).
Mohanty, S. K., Patnaik, S. and Whittig, L. D., Characteristics of some rice growing soils of India. J. Indian Soc. Soil Sci. 22, 357–364 (1974).
Nayar, P. K., Status of Available Silica in the Rice Soils of Kerala State. M. Sc. Thesis Kerala Univ. pp. 70 (1966).
Nayar, P. K., Misra, A. K. and Patnaik, S., Rapid micro-determination of silicon in rice plant. Plant and Soil, 42, 491–494 (1975).
Okuda, A. and Tokahashi, E., The role of silicon. in, The Mineral Nutrition of the Rice Plant. The Johns Hopkins Press, Baltimore, Md., 123–146 (1964).
Patnaik, S., Laterite soils of India. FAO World Soil Resources Reports No. 41, 52–56 (1971).
Ponnamperuma, F. N., Dynamic aspects of flooded soils and the nutrition of the rice plant. in The Mineral Nutrition of the Rice Plant. Johns Hopkins Press, Baltimore, Md., 295–328 (1964).
Sahu, B. N., Bronzing disease of rice in Orissa as influenced by soil types and manuring and its control. J. Indian Soc. Soil Sci. 16, 41–54 (1968).
Takahashi, E., Silica as a nutrient to the rice plant. Japan Agr. Res. Quart. 3, 1–4 (1968).
Takijima, Y., Gunawardene, S. D. I. E., Wijiratne, H. M. S., Kanaganayagam M. and Senevaratne, J., Nutrient deficiency and physiological disease of low land rice in Ceylon. II. Phosphate fertilizer use for phosphorus deficiency of the rice plants. Soil Sci. Plant Nutr. Japan 15, 259–266 (1969).
Uda, K. and Yamaoka, M., Studies on old paddy soils. VII. Examination of a method for determining available silicate in soil. J. Sci. Soil Manure, Japan 30, 393–396 (1959).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Nayar, P.K., Misra, A.K. & Patnaik, S. Evaluation of silica-supplying power of soils for growing rice. Plant Soil 47, 487–494 (1977). https://doi.org/10.1007/BF00011505
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00011505