PENGARUH PEMBERIAN RHIZOBIUM DAN KOMPOS DAUN GAMAL TERHADAP PERTUMBUHAN SEMAI SENGON LAUT (Paraserianthes Falcataria L. Nielsen) PADA TANAH ULTISOL

PENGARUH PEMBERIAN RHIZOBIUM DAN KOMPOS DAUN GAMAL TERHADAP PERTUMBUHAN SEMAI SENGON LAUT (Paraserianthes Falcataria L. Nielsen) PADA TANAH ULTISOL

Indra R. Tarifuddin1, Yusran2, Asgar Taiyeb2, Rahmawati2
Jurusan Kehutanan, Fakultas Kehutanan Universitas Tadulako
Jl. Soekarno Hatta Km. 9 Palu, Sulawesi Tengah 94118
1Mahasiswa Fakultas Kehutanan Universitas Tadulako
Email: indratarifuddin@gmail.com
2Staf Pengajar Fakultas Kehutanan Universitas Tadulako

Abstract
Basically, sengon plants can grow on all types of soil, either on dry land or yards or on newly opened forest lands. even in marginal soils such as ultisols. Ultisol soil has a low pH, so the fertility level is also low due to the low solubility of macro elements. This study aims to determine the effect of the interaction between Rhizobium bacteria and gamal leaf compost on the growth of Sengon (Paraserianthes falcataria L. Nielsen) seedlings on ultisol soil. The research was conducted for 3 months, from December 2021 to March 2022, which is located in the Rano Indah Farmer Group Nursery, Uwemanje Village, Kinovaro District, Sigi Regency. This study used a completely randomized design method with a factorial pattern consisting of two observation parameters, namely seedling height, diameter, number of leaflets, number of petioles and the value of seedling robustness. Analysis of variance or F test is used to determine whether the treatment of a single factor or its interaction has a significant effect. And if it has a significant effect on the observation parameters, then it is continued with a further test of Honest Significant Difference (BNJ) at a significant level of 5%. The results showed that the application of Rhizobium and gamal leaf compost had a significant effect on the growth of sengon seedlings, namely the parameters of seedling height, stem diameter and number of leaflets, but did not significantly affect the number of leaf stalks of sengon seedlings. Keywords: Rhizobium, Gamal Leaf Compost, Sea Sengon, Ultisol.