Abstract
The effectiveness of biofertilizer is influenced by the type of microbial constituent and the carrier media. This study is aimed to determine the effect of carrier media on microbial viability, mustard growth and productivity, and the type of carrier media with the best response to mustard. This study used three kinds of carrier media, consisting of molasses, rice water, and sucrose. Microbes used were Candida G3.2 and W3.8, with the addition of Azotobacter A10. The results showed that all biofertilizer carrier media improved microbial viability, with the highest TPC which was obtained by rice water with the value of 1.19x1014 cfu/ml, sucrose with the value of 1.18x1014 cfu/ml and molasses with the value of 9.65x1013 cfu/ml at 7 days of incubation times. Biofertilizer carrier media also gave the positive effect that was indicated by the increase of mustard growth and productivity. Molasses is the best carrier media that provides a high response in mustard growth and productivity, with the value of plant height which is 24.250 cm, the number of the leaf is 5.250, the leaf area is 2959.8 mm2 and the dry weight is 3.90 gram.
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