Effect Of Biochar On Availability Of Nutrition Fe (Iron) In Acid Soil

Nur Indah Mansyur, Ayni Ayni, Eko Hary Pudjiwati

Abstract


Iron (Fe) is a micro nutrient that is absolutely fulfilled in plant metabolic reactions. Iron is needed in relatively small amounts, but the solubility of iron in acid soils is very high. The high content of soluble iron in the soil causes the growth and production of the resulting plant is not optimal. The application of soil amendments such as biochar can reduce the solubility of iron in acid soils. This study aims to examine the effect of the application of biochar as a soil enhancer on the availability of Fe nutrients in acid soils. This research is an experimental research conducted in a laboratory. This study used a completely randomized design (CRD) with 1 factor, namely the dose of biochar, consisting of 5 dose levels as treatment, namely: dose 0 g/100 g soil, dose 2.1 g/100 g soil, dose 4.4 g/100 g soil, dose 6.3 g/100 g soil, and dose 8.4 g/100 g soil, and each treatment was incubated for 8 weeks. The observed soil parameters were pH, C-Organic content, Fe-available, which were carried out at incubation times of 0, 1, 4, and 8 weeks. The results showed that the application of biochar had an effect on the availability of Fe in acid soils. The application of different doses of biochar has a different effect on significantly the availability of Fe in acid soils. In all incubation periods, the application of biochar at a dose of 2.1 g/100 g soil was able to reduce the available Fe content in the soil to 4.17, 3.59, 3.51 ppm at 1, 4, and 8 weeks of incubation, respectively

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DOI: https://doi.org/10.35334/iciksa.v0i0.67

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