Exploration of Mycorrhiza from Lombok soils in media sterilized by gamma irradiation and their effect on Sorghum plants

Abstract Mycorrhiza which plays a role in increasing P uptake of plants and also as a soil amendment to rehabilitate degraded lands. This research was conducted with the aim of isolating, characterizing, and purifying mycorrhiza from two different soil types. The results showed that the mycorrhiza species found were Glomus etunicatum, Gigaspora margarita, Sclerocytis rubiformis. A completely randomized design (CRD) consisted of 6 treatments were applied into two types of soil, was Lombok soil and Parung soil. Each treatment was repeated 3 times, so that there were 36 experimental units. Treatments given were as follow: (1) Without mycorrhiza and without P source (Control); (2) fertilizer SP-36; (3) Mycofer mycorrhiza; (4) Mycofer Mycorrhiza + SP 36 fertilizer; (5) Mikorbi mycorrhiza from Lombok; (6) Mikorbi mycorrhiza from Lombok + SP 36 fertilizer. The results showed that combination mikorbi mycorrhiza and fertilizer SP 36 on Parung soil can increase stover production by 57.35% compared to control, by 9.73% compared to the mycofer mycorrhiza and fertilizer SP 36. The results showed that mycorrhiza is suitable to use in soils with low P content, so that they could help increase the availability of P in the soil and be easily absorbed by plants.