<![CDATA[Abstract : In the effort to improve cultivation technique and weed control of potato crops, the research had been conducted with the aim to study the effect of tuber node number and organic mulch on growth, production and weed control efficiency in potato crops (Solanum tuberosum, L.). The research used the factorial randomized block design with two factors. The first factor was tuber node number consisted of 2, 4, and 6 nodes and the second factor was organic mulch consisted of without mulch, cogon grass mulch, coffee husk mulch and Tithonia mulch dosage 7 ton ha-1. The research conducted in MerahMunyang Village, AtuLintang District, Aceh Tengah Region.The result indicated that the treatment the two nodes tuber combined with organic mulch of cogon grass dosage 7 ton ha-1 could increase the yield of potato compared to without mulch, coffee husk mulch and Tithonia mulch by 1,16% ; 1,15 %; and 1,05 % respectively and also could improve the efficiency of weed control at potato crops. Abstrak : Dalam upaya memperbaiki teknik budidaya dan pengendalian gulma pada tanaman kentang telah dilaksanakan penelitian yang bertujuan untuk mengetahui pengaruh jumlah mata tunas dan mulsa organik terhadap pertumbuhan, produksi dan efisiensi pengendalian gulma pada tanaman kentang (Solanum tuberosum. L.). Penelitian ini menggunakan rancangan acak kelompok dengan dua faktor. Faktor pertama terdiri dari 2, 4 dan 6 mata tunas per umbi dan faktor kedua terdiri dari tanpa mulsa , mulsa alang-alang, mulsa kulit kopi dan mulsa Tithonia takaran 7 ton ha‾¹. Penelitian dilaksanakan di Kampung Merah Munyang Kecamatan Atu Lintang Kabupaten Aceh Tengah. Hasil penelitian menunjukkan bahwa perlakuan 2 mata tunas disertai dengan penggunaan mulsa alang-alang 7 ton ha‾¹ mampu meningkatkan produksi kentang dibandingkan dengan kontrol, mulsa tithonia dan mulsa kulit kopi masing-masing 1,16%; 1,15 %; dan 1,05 %, serta dapat mengurangi laju pertumbuhan gulma.]]>
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