Abstract
Enhancement of productivity of potato plants grown on poor-P soil such as Inceptisols due to application of arbuscular mycorrhizal fungi (AMF) has been acknowledged. However, whether this AMF improved the quality of potato tubers is still need further investigation. This study was conducted to evaluate the effectiveness of AMF in enhancing potato quality and determine whether the addition of compost and biochar to soil can support the productivity of this biofertilizer in enhancing the nutrient content in the tubers of potato plant. Screen house experiment was set up in factorial design with treatments were organic matter types (compost and compost plus biochar), and application of arbuscular mycorrhiza (without and with AMF consisted of Glomus sp. and Gigaspora sp.). Results of experiment showed that there was no interaction effect between organic matter and AMF on quality of potato tubers, however, the individual treatment especially AMF increased the content of protein and lipid of potato tubers. Biochar that added to soil with compost was also increased the lipid content of potato tubers. This finding showed that AMF application in potato production grown in poor P-soil was not only increased the yield of potato, but also increased the quality of potato tubers.
Highlights
Potato (Solanum tuberosum L.) is one of the most important food crops in the world, which is rich in essential minerals providing both biological and nutritional values to human beings (Ekin 2011)
The results of the analysis of variance showed that no significant difference on the potato tuber moisture contents among the treatments of organic matter and mycorrhiza (Table 3)
The treatments showed similar effects on ash contents of potato tubers (Table 2). Both compost and biochar resulted in the same ash contents of potato tubers
Summary
Potato (Solanum tuberosum L.) is one of the most important food crops in the world, which is rich in essential minerals providing both biological and nutritional values to human beings (Ekin 2011). Potato demands high level of soil nutrients for its tuber production due to relatively poor developed. There is a high demand for chemical-free foods (El-Sayed et al 2014). One of the solutions to reduce the use of chemicals in agriculture is by using biofertilizers contained of living microorganisms which have the ability to mobilize nutrients in soil from unavailable to available forms through biological processes. Application of biofertilizers to soil allows the microorganisms to colonize the rhizosphere together with the plants and increase the supply or availability of nutrients to the host plants (Vessey 2003) as well as increase the soil fertility and crop production in sustainable farming (Wu et al 2004, AL-Zabee and AL-Maliki 2019)
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