Abstrak. Penelitian ini bertujuan untuk mengetahui efek dari residu pembenah tanah terhadap pertumbuhan dan hasil tanaman kangkung. Penelitian ini dilaksanakan pada bulan Maret hingga April 2019. di Kebun Percobaan dan Laboratorium Gulma Fakultas Pertanian Universitas Syiah Kuala, Darussalam, Banda Aceh. Bahan tanaman adalah kangkung Varietas Bika. Rancangan penelitian yang digunakan adalah Rancangan Acak Kelompok non faktorial yang terdiri dari 15 perlakuan dengan 3 ulangan. Perlakuan penelitian terdiri dari kontrol 0% NPK, kontrol (N dan K), kontrol NPK 50 % rekomendasi, sekam padi 10 t/ha + NPK 0 %, ekam padi 10 t/ha + N dan K, sekam padi 10 t/ha + NPK 50%, biochar sekam padi + 0 % NPK, biochar sekam padi + N dan K, biochar sekam padi + NPK 50 %, kotoran sapi 10 t/ha + NPK 0%, kotoran sapi 10 t/ha + N dan K, kotoran sapi 10 t/ha + NPK 50% rekomenndasi, kotoran sapi 20 t/ha + NPK 0%, kotoran sapi 20 t/ha + N dan K, kotoran sapi 20 t/ha + NPK 50% rekomendasi. Hasil penelitian menunjukkan bahwa residu pembenah tanah berpengaruh sangat nyata terhadap diameter tanaman 3 MST, berat basah produksi dan berat kering produksi. Hasil penelitian menunjukkan residu pembenah tanah berpengaruh nyata terhadap tinggi tanaman 4 MST, jumlah daun 3 MST dan berat kering tajuk (Shoot). Pertumbuhan dan hasil tanaman kangkung yang terbaik terdapat pada perlakuan residu pembenah tanah kotoran sapi 20 ton ha-1 + N dan K. Kata kunci : Biochar, Pembenah tanah, Pertumbuhan dan Kangkung Abstract. This study aims to determine the effect of soil remover residues on growth and yield of kale. The research was conducted in March to April 2019. at the Weed Experimental Garden and Laboratory of the Faculty of Agriculture, Syiah Kuala University, Banda Aceh. Plant material is water spinach variety Bika. The study design used was a non factorial randomized block design consisting of 15 treatments with 3 replications. The research treatment consisted of 0% NPK control, control (N and K), 50% NPK control recommendation, 10 t / ha rice husk + 0% NPK, 10 t / ha + N rice bran and N, K, 10 t / ha rice husk + NPK 50%, biochar rice husk + 0% NPK, biochar rice husk + N and K, biochar rice husk + NPK 50%, cow manure 10 t / ha + NPK 0%, cow manure 10 t / ha + N and K , cow manure 10 t / ha + NPK 50% recommendation, cow manure 20 t / ha + NPK 0%, cow manure 20 t / ha + N and K, cow manure 20 t / ha + NPK 50% recommendation. The results showed that soil residual residues had a very significant effect on plant diameter of 3 MST, production wet weight and production dry weight. The results showed that soil residue residues significantly affected plant height of 4 MST, number of leaves of 3 MST and shoot dry weight (Shoot). The best growth and yield of water spinach plants is found in the treatment of residual soil-enhancing cow dung 20 tons ha-1 + N and K. Keyword : Biochar, Soil Amendment, Growth and Kangkung.