Update Artikelilmiah: 45936

AVRIL RATU WIDYANINGSIH

NIM

Judul Artikel

Abstrak (Bhs. Indonesia)

Kontaminasi logam berat kadmium (Cd) meningkat seiring dengan pesatnya perkembangan industri menghasilkan pencemar tanah/air kemudian masuk ke sumber irigasi pertanian. Upaya penanggulangan hal tersebut yaitu menggunakan bakteri bioremediasi dan pemberian bahan organik pembenah tanah seperti asam humat yang berguna untuk memperbaiki sifat tanah, sehingga pertumbuhan pakcoy dapat maksimal. Penelitian ini dilaksanakan di screenhouse Desa Kebanggan pada Agustus – Desember 2023. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) 2 faktorial dengan 9 kombinasi perlakuan dan 3 ulangan. Variabel yang diamati adalah kandungan kadmium (Cd) tanah dan tanaman, tinggi tanaman, jumlah daun, luas daun, kadar klorofil, dan bobot segar. Kandungan Cd awal tanah telah dianalisis (sebelum aplikasi) yaitu 0,4814 mg/kg. Berdasarkan hasil penelitian, perlakuan aplikasi konsorsium Bacillus sp. (M1 dan M2) dan asam humat dosis 10, 20, 30 kg/ha memberi pengaruh pada penurunan kandungan Cd tanah. Hasil terendah kandungan Cd akhir tanah yaitu 0,2864 ppm pada perlakuan konsorsium Bacillus sp. kode SJ3 + CR1 dan asam humat dosis 30 kg/ha (M2A3), dimana kadar Cd akhir tanah tersebut lebih rendah dibandingkan kandungan Cd awal tanah. Perlakuan aplikasi konsorsium Bacillus sp. (M1 dan M2) dan asam humat dosis 10, 20, 30 kg/ha memberikan hasil kandungan Cd tanaman lebih rendah dibandingkan perlakuan asam humat dosis 10, 20, 30 kg/ha tanpa aplikasi konsorsium Bacillus sp. Hasil terendah kandungan Cd tanaman yaitu 0,0190 ppm pada perlakuan konsorsium Bacillus sp. kode SJ3 + CR1 dan asam humat dosis 30 kg/ha (M2A3). Hal ini membuktikan bahwa aplikasi konsorsium Bacillus sp. (M1 dan M2) dan asam humat dosis 10, 20, 30 kg/ha lebih efektif dalam menghambat penyerapan Cd pada tanaman dibandingkan aplikasi asam humat dosis 10, 20, 30 kg/ha tanpa perlakuan konsorsium Bacillus sp. Hal ini membuktikan bahwa aplikasi konsorsium Bacillus sp. dan asam humat dapat menurunkan kandungan Cd pada tanah serta menghambat penyerapan Cd pada tanaman. Namun, aplikasi konsorsium Bacillus sp. dan asam humat belum efektif meningkatkan pertumbuhan tanaman pakcoy.

Abtrak (Bhs. Inggris)

Contamination of the heavy metal cadmium (Cd) increases along with the rapid development of industry, producing soil/water pollutants which then enter agricultural irrigation sources. Efforts to overcome this include using bioremediation bacteria and providing soil-improving organic materials such as humic acid which is useful for improving soil properties, so that pak choy growth can be maximized. This research was carried out at the Kebanggan Village screenhouse in August – December 2023. This research used a 2 factorial Randomized Group Design (RAK) with 9 treatment combinations and 3 replications. The variables observed were soil and plant cadmium (Cd) content, plant height, number of leaves, leaf area, chlorophyll content, and fresh weight. The initial Cd content of the soil has been analyzed (before application) which is 0,4814 mg/kg. Based on the results of the study, the application treatment of the Bacillus sp. consortium (M1 and M2) and humic acid doses of 10, 20, 30 kg/ha have an effect on reducing the Cd content of the soil. The lowest result of the final Cd content of the soil was 0,2864 ppm in the treatment of Bacillus sp. consortium code SJ3 + CR1 and humic acid dose of 30 kg/ha (M2A3), where the final Cd content of the soil was lower than the initial Cd content of the soil. The application treatment of Bacillus sp. consortium (M1 and M2) and humic acid doses of 10, 20, 30 kg/ha gave lower Cd content results in plants compared to the treatment of humic acid doses of 10, 20, 30 kg/ha without the application of the Bacillus sp. consortium. The lowest result of the Cd content of the plant was 0,0190 ppm in the treatment of Bacillus sp. consortium code SJ3 + CR1 and humic acid dose of 30 kg/ha (M2A3). This proves that the application of the Bacillus sp. consortium. (M1 and M2) and humic acid doses of 10, 20, 30 kg/ha are more effective in inhibiting Cd absorption in plants compared to the application of humic acid doses of 10, 20, 30 kg/ha without Bacillus sp. consortium treatment. This proves that the application of Bacillus sp. consortium and humic acid can reduce Cd content in the soil and inhibit Cd absorption in plants. However, the application of Bacillus sp. consortium and humic acid has not been effective in increasing the growth of pak choi plants.

Kata kunci

Pembimbing 1

Pembimbing 2

Pembimbing 3

Tahun

Jumlah Halaman