Produksi biochar menggunakan slow pyrolysis diakibatkan oleh terjadinya proses dekomposisi dan karbonisasi senyawa bioplimer dari biomassa, semakin tinggi suhu pirolisis maka produk biochar akan semakin sedikit. Hal tersebut terjadi karena pada suhu tinggi, senyawa biopolimer akan berubah menjadi gas dan menghasilkan biooil ketika adanya proses kondensasi
Kandungan pada pupuk biochar yang dipirolisis dengan suhu 4500C memiliki kandungan karbon yang tinggi 91,47%w dan rasio C/N yang cukup stabil yaitu 12,97 yang menandakan bahwa kekuatan biochar dalam menjaga kandungan mineral tanah dan mampu meningkatkan jumlah C organik tanah sebagai media penyerapan gas CO2 di udara. Selain itu, struktir fisik dari biochar yang porinya cendurung sarang akan membuat pertumbuhan mikroba pada tanah semakin meningkat sehingga produksi nutrisi tumbuhan pada tanah (Nitrat) akan melimpah dan membuat perumbuhan tanaman semakin baik.
Penggunaan pupuk komersial dapat menghasilkan emisi GRK yang berasal dari produksi pupuk itu sendiri. Hasil analisa LCA menggunakan OpenLCA menunjukkan bahwa dengan mengurangi jumlah penggunaan pupuk komersial dan menggantinya dengan pupuk biochar, pengurangan jumlah dampak yang diakibatkan emisi GRK dapat mencapai 2-20%.
5.2 Saran
Saran untuk penelitian kedepannya ialah melakukan penelitian secara langsung mengenai aplikasi biochar pada tanah dan menganalisa kandungan tanah serta peforma tanaman akibat pengaplikasian biochar sebagai pupuk.
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