APPLICATION OF MYCORRHIZA BIOFERTILIZER AND INTERCROPPING WITH MUNGBEAN INCREASE GROWTH AND YIELD OF TWO SWEET POTATO VARIETIES

Abstract

This study aimed to examine the effects of the application of a biofertilizer containing Arbuscular Mycorrhizal Fungi (AMF) and intercropping with mungbean plants on growth and tuber yield of two sweet potato varieties. The pot experiment was conducted in a plastic house, which was arranged according to Completely Randomized Design, testing three treatment factors, namely sweet potato varieties (V1= Antin-3, V2= Sukuh), intercropping with mungbean (I0= without, I1= intercropping with mungbean), and application of mycorrhiza biofertilizer (M0= without, M1= with mycorrhiza). Data were analyzed with analysis of variance (ANOVA) using CoStat for Windows ver. 6.303. The results indicated that the three treatment factors had a significant effect on tuber weight per pot, and among the treatment factors, mycorrhiza biofertilizer had the most significant effect. However, there were two-way interaction effects on some observation variables, and three-way interaction effects on the total length of branches and tuber weight per pot, and it was found that the highest tuber yield was on the sweet potato plants supplied mycorrhiza biofertilizer and intercropped with mungbean, with an average tuber weight of 301.8 g/pot (or 30.18 ton/ha) on Antin-3 variety or 287.0 g/pot (or 28.70 ton/ha) on Sukuh variety, and the lowest tuber yield was on the monocropped sweet potato plants without application of mycorrhiza biofertilizer, with an average tuber weight of 55.0 g/pot (or 5.50 ton/ha) on Antin-3 variety or 122.10 g/pot (or 12.21 ton/ha) on Sukuh variety.

Keywords

• additive intercropping
• mungbean
• sweet potato
• mycorrhiza
• biofertilizer