NUTRIENT RELEASE DUE TO SOIL SOLARIZATION IN ALFISOLS

Article Id: ARCC3149 | Page : 217-222
Citation :- NUTRIENT RELEASE DUE TO SOIL SOLARIZATION IN ALFISOLS.Indian Journal Of Agricultural Research.2000.(34):217-222
1i.K. Basavaraju and H.V. Nanjappa
Address : Deptt. of Agronomy, University of Agricultural Sciences, Gandhi Krishi Vignana Kendra, Bangalore-560 065, India

Abstract

Two field experiments were conducted to examine the effect of soil solarization on nutrient content of alfisols. Soil solarization due to its ability to rise the soil temperature, reduced the organic carbon content of the soil (0.15–0.24% in 1996 and 0.15–0.22% in 1997) and enhanced the levels of available P 2O 5 (8.7–11.0 kg/ha in 1996 and 6.2–12.2 kg/ha in 1997) and Kp (22.0–47.0 kg/ha in 1996 and 24.0–45.7 kg/ha in 1997) contents over the non-solarized control. The influence of soil solarization DTPA extractable Zn +2, Cu +2 and Mn +2 was not significant but Fe +3 level was enhanced upon solarizlilion. The month, thickness of transparent polyethylene films (TPEs) and duration of soil temperature had higher influence on soil nutrient release.

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