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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan)
Hilwa Walida
Progam Studi Agroteknologi Fakultas Sains dan Teknologi Universitas Labuhan Batu 21418 Sumatera Utara
Agriculture, Biological Sciences & Forestry Environmental Science

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DERAJAT INFEKSI MIKORIZA PADA PERSIAPAN LAHAN DAN PENGELOLAAN GULMA DI TIGA KABUPATEN DI PROVINSI SUMATERA UTARA F Fitria; Fitra Syawal Harahap; Hilwa Walida
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 1 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.077 KB) | DOI: 10.21776/ub.jtsl.2020.007.1.22

Abstract

This study was aimed to elucidate the level of degree of mycorrhiza infection with some way of land preparation and weed management in Deli Serdang, Karo and Simalungun Regencies of North Sumatera Province. The percentage of degrees of mycorrhiza infection in maize roots was observed in the laboratory at the end of the vegetative period using a magnification microscope of 100 times. It was carried out by choosing a fine root (root hair) from a representative of various sides of the roots with a diameter of between 0.2 and 2 mm, washed with clean running water then put the root into 10% KOH solution and left for 24 hours. Results of the study indicated that the best treatment of soil treatment and weed control was 32.67% in T3 treatment (OTS 21 and 42 HST weeded) and the lowest was 11.00% in T6 treatment (TOT 21 and 42 HST paraquat application) and had a significant effect on Karo Regency with the best value of 31.33% T1 (OTS 21 and 42 HST paraquat applications) and the lowest value of 10.00% in T10 treatment (TOT and no controlled weeds). Soil treatment with twice weedings caused the highest degree of mycorrhiza infection in Deli Serdang Regency, while soil treatment with twice application of paraquat resulted in the highest degree of mycorrhiza infection in Karo Regency.
PENGARUH PEMBERIAN ABU SEKAM PADI DAN KOMPOS JERAMI PADI TERHADAP SIFAT KIMIA TANAH ULTISOL PADA TANAMAN JAGUNG MANIS Fitra Syawal Harahap; Hilwa Walida; Roswita Oesman; R Rahmaniah; Iman Arman; Makruf Wicaksono; Dahrul Aman Harahap; Rosmidah Hasibuan
Jurnal Tanah dan Sumberdaya Lahan Vol. 7 No. 2 (2020)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.719 KB) | DOI: 10.21776/ub.jtsl.2020.007.2.16

Abstract

This study aimed to determine the effect of rice straw compost and rice husk ash on some chemical properties of an Ultisol soil under sweet corn plant. This study was conducted at the Labuhan Batu Rantau Prapat University Campus Land and the PT. Socfindo Laboratory. The design used in this study was a randomized factorial design consisting of two factors with two replications. The first factor was the application of rice husk ash with four dose levels (g 5 kg-1 of soil), i.e. P0 (0), P1 (10), P2 (20), and P3 (30). The second factor was the application of rice straw compost with four dose levels (g 5 kg-1 of soil), i.e. J0 (0), J1 (25), and J2 (50), J3 (75). Results of this study indicated that the application of rice straw compost significantly increased soil organic-C and available P contents, as well as plant height, plant dry weight, N and P uptake by the plant. The treatments, however, did not significantly increase soil pH and total-N content. The application of rice husk ash significantly increased soil organic-C content and N uptake by the plant, but it did not significantly increase pH, available P content, and total N content of the soil.
Co-Authors Dahrul Aman Harahap F Fitria Fitra Syawal Harahap Makruf Wicaksono R Rahmaniah Rosmidah Hasibuan Roswita Oesman