Update Artikelilmiah: 45776

MELLA RACHACA

NIM

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk menentukan dosis biochar dan asam humat terhadap penurunan kadmium dalam tanah serta pertumbuhan dan hasil tanaman pakcoy. Penelitian dilaksanakan di Screenhouse Desa Kebanggan bulan Agustus 2023 - Januari 2024. Analisis dilakukan di Wahana Laboratorium Semarang, Laboratorium Agroekologi, Laboratorium Tanah dan Sumberdaya Lahan Faperta Unsoed. Penelitian ini menggunakan Rancangan Acak Kelompok Non Faktorial yang terdiri dari 9 perlakuan dan setiap perlakuan dilakukan pengulangan sebanyak 3 kali dengan dosis biochar dan asam humat, yaitu AB1 = Biochar 5 ton/ha dan asam humat 10 kg/ha, AB2 = Biochar 10 ton/ha dan asam humat 10 kg/ha, AB3 = Biochar 15 ton/ha dan asam humat 10 kg/ha, AB4 = Biochar 5 ton/ha dan asam humat 20 kg/ha, AB5 = Biochar 10 ton/ha dan asam humat 20 kg/ha, AB6 = Biochar 15 ton/ha dan asam humat 20 kg/ha, AB7 = Biochar 5 ton/ha dan asam humat 30 kg/ha, AB8 = Biochar 10 ton/ha dan asam humat 30 kg/ha, AB9 = Biochar 15 ton/ha dan asam humat 30 kg/ha. Variabel yang diamati yaitu kandungan kadmium dalam tanah dan tanaman jumlah bakteri total, tinggi tanaman, jumlah daun, luas daun, bobot basah tanaman dan kandungan klorofil daun. Hasil penelitian menunjukkan bahwa aplikasi biochar dan asam humat dosis 15 ton/ha dan 30 kg/ha merupakan perlakuan terbaik karena mampu menurunkan kadmium dalam tanah sebesar 39,53%. Pada tanaman pakcoy terdapat kandungan logam berat sebesar 0,08 ppm yang terakumulasi pada jaringan tanaman. Aplikasi biochar 15 ton/ha dan asam humat 30 kg/ha mampu meningkatkan tinggi tanaman sebesar 10,14%, jumlah daun sebesar 30%, luas daun sebesar 37,36%, bobot basah sebesar 20,75% dan kadar klorofil total sebesar 132,1%.

Abtrak (Bhs. Inggris)

The purpose of this research was to the dose of biochar and humic acid to reduce cadmium content in soil as well as the growth and yield of pakcoy plants. The research was conducted at the Screenhouse of Kebanggan Village, Sumbang Subdistrict, Banyumas Regency from August 2023 - January 2024. Analyses were conducted at Wahana Laboratorium Semarang, Agroecology Laboratory, Soil and Land Resources Laboratory, Faculty of Agriculture, Unsoed. This study used a Non-Factorial Randomized Group Design consisting of 9 treatments and each treatment was repeated 3 times with the treatment given was the dose of biochar and humic acid, namely AB1 = Biochar 5 tons/ha and humic acid 10 kg/ha, AB2 = Biochar 10 tons/ha and humic acid 10 kg/ha, AB3 = Biochar 15 tons/ha and humic acid 10 kg/ha, AB4 = Biochar 5 tons/ha and humic acid 20 kg/ha, AB5 = Biochar 10 tons/ha and humic acid 20 kg/ha, AB6 = Biochar 15 tons/ha and humic acid 20 kg/ha, AB7 = Biochar 5 tons/ha and humic acid 30 kg/ha, AB8 = Biochar 10 tons/ha and humic acid 30 kg/ha, AB3 = Biochar 15 tons/ha and humic acid 30 kg/ha. The observed variables were cadmium content in soil and total bacterial count, plant height, number of leaves, leaf area, plant wet weight and leaf chlorophyll content. The results showed that the application of biochar and humic acid doses of 15 tons/ha and 30 kg/ha was able to reduce the cadmium content in the soil with a percentage of 39.53%. In pakcoy plants there is a heavy metal content of 0.08 ppm which accumulates in plant tissues. The application of biochar 15 tons/ha and humic acid 30 kg/ha was able to increase the percentage of growth and yield of pakcoy plants, namely plant height by 10.14%, number of leaves by 30%, leaf area by 37.36%, wet weight by 20.75% and total chlorophyll content by 132.1%.

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