Growth of mycorrhizal cocoa on a red-yellow podzolic soil
Most of red-yellow-podzolic soils had poor supply of nutrients in supporting growth and production of crops. The effect of mycorrhizal inoculation, using spores of Gigaspora margarita, on growth of cocoa (Theobroma cacao L.) in a red-yellow podzolic soil of South Kalimantan was studied in a pot experiment. The experimental design was a factorial of 2 (mycorrhizal inoculation) x 2 (soil sterilization) x 3 (P fertilizer source). Plant growth was significantly increased by mycorrhizal infection and P fertilizer. In soil with low supply of P, mycorrhizal inoculation increased growth of cocoa plants. Rock phosphate was effectively used when the plants were mycorrhizal. Mycorrhizal inoculation gave no significant effect in unsterile soils which was due to the presence of effective indigenous fungi in the soil. Highest density of mycorrhizal spores was found in soil treated with rock phosphate.
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| Format: | biblioteca |
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Ene
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| Subjects: | THEOBROMA CACAO, MYCORRHIZAE, MICORRIZAS ARBUSCULARES VESICULARES, GIGASPORA MARGARITA, FOSFORO, PODZOLES, |
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