Update Artikelilmiah: 41410

FITRI NUR MAHFUDAH

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Abstrak (Bhs. Indonesia)

Padi (Oryza sativa L.) merupakan tanaman utama yang dikonsumsi oleh mayoritas penduduk Indonesia. Pengembangan produksi tanaman pangan di Indonesia terhalang pada masalah buruknya sifat-sifat kimia fisik tanah yang terjadi karena faktor-faktor produksi. Biochar berperan penting bagi tanaman sebagai bahan pembenah tanah (amelioran tanah). Biochar terbukti meningkatkan total karbon organik, kapasitas tukar kation, dan menurunkan kandungan Cd dan Pb. Tujuan dari penelitian ini adalah untuk mengetahui karakter fisiologi dan hasil tanaman padi pada tanah yang tercemar logam berat Pb & Cd dengan aplikasi biochar. Penelitian ini dilaksanakan di Screen house Balai Benih Tanaman Pangan dan Hortikultura, Unit Pelaksana Tugas (UPT) Pertanian Kebun Benih Padi dan Palawija Desa Bojongsari, Kecamatan Kembaran, Kabupaten Banyumas, Laboratorium Agronomi & Hortikultura, serta Laboratorium Agroekologi Fakultas Pertanian, Universitas Jenderal Soedirman. Penelitian dilaksanakan pada bulan Juli – Oktober 2022. Rancangan percobaan yang digunakan yaitu Rancangan Petak Terbagi (RPT) / Split Plot Design dengan 2 faktor. Setiap perlakuan masing-masing diulang sebanyak 3 kali, sehingga secara keseluruhan menghasilkan 36 unit percobaan. Hasil penelitian menunjukkan perlakuan asal tanah berpengaruh nyata pada laju pertumbuhan tanaman (LPT), laju asimilasi bersih (LAB), jumlah anakan produktif, jumlah gabah isi per rumpun, bobot gabah per rumpun, dan bobot kering tajuk fase akhir generatif. Aplikasi biochar hanya berpengaruh nyata pada kerapatan stomata dan bobot 1000 biji. Interaksi antara perlakuan asal tanah dan aplikasi biochar hanya berpengaruh pada kadar klorofil b dan jumlah gabah hampa per rumpun.

Abtrak (Bhs. Inggris)

Paddy (Oryza sativa L.) is the main crop consumed by the majority of the Indonesian population. The development of food crop production in Indonesia is hindered by the problem of poor soil physical chemical properties that occur due to production factors. Biochar plays an important role for plants as a soil ameliorant. Biochar is proven to increase total organic carbon, cation exchange capacity, and reduce Cd and Pb content. The purpose of this study was to determine the physiological characteristics and yield of rice plants in soil polluted with heavy metals Pb & Cd with biochar application. This research was conducted at the Screen house of the Food and Horticultural Plant Seed Center, the Agricultural Implementation Unit (UPT) of the Rice and Crops Seed Farm in Bojongsari Village, Kembaran District, Banyumas Regency, Agronomy & Horticulture Laboratory, and Agroecology Laboratory of the Faculty of Agriculture, Jenderal Soedirman University. The research was conducted from July to October 2022. The experimental design used was Split Plot Design with 2 factors. Each treatment was repeated 3 times, resulting in a total of 36 experimental units. The results showed that soil origin treatment had a significant effect on plant growth rate (LPT), net assimilation rate (LAB), number of productive tillers, number of filled grains per clump, grain weight per clump, and crown dry weight in the late generative phase. Biochar application only significantly affected stomatal density and 1000 seed weight. The interaction between soil origin treatment and biochar application only affected chlorophyll b content and the number of empty grains per clump.

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