Kedelai (Glycine max L. Mer) merupakan salah satu komoditas pangan dari famili leguminosease yang dibutuhkan sebagai pelengkap gizi makanan. Biji kedelai memiliki kandungan gizi tinggi yang berperan untuk membentuk sel-sel tubuh dan menjaga kondisi sel-sel tersebut. Kebutuhan kedelai dari waktu ke waktu cenderung terus meningkat seiring dengan bertambahnya jumlah penduduk. Tujuan penelitian adalah mengkaji pengaruh pemberian inokulan Rhizobium serta macam pupuk kandang terhadap pertumbuhan dan produksi tanaman kedelai (Glycine max L.). Penelitian dilakukan di Kebun Percobaan Agroteknologi, Universitas Trunojoyo Madura. Penelitian ini menggunakan rancangan petak terbagi (RPT), dengan petak utama adalah macam pupuk kandang dan anak petak adalah peggunaan inokulan Rhizobium. Macam pupuk kandang terdiri dari 2 taraf yakni pupuk kandang sapi (P1) dan ayam (P2, sedangkan perlakuan inokulan Rhizobium terdiri dari 2 taraf yakni tanpa pemberian (R0) dan dengan inokulan Rhizobium (R1). Hasil penelitian menunjukkan bahwa aplikasi inokulan Rhizobium menjadikan tanaman kedelai mampu membentuk bintil akar; dan perlakuan kombinasi pupuk kandang ayam dengan pemberian inokulan Rhizobium cenderung memberikan hasil tertinggi pada variabel bobot kering polong dan bobot kering biji kedelai. Kata kunci: Tanaman Kedelai, Inokulan Rhizobium, Bintil Akar.

Soybean (Glycine max L Merr) is one of food commodities from leguminosease family that is needed to supplement food nutrition. Soybean seeds have a high nutrient content that plays a role to form the body's cells and maintain the good condition of these cells. The need for soybeans over time tends to increase as the population increases. This research aimed to investigate the effects of Rhizobium inoculant and manure type application on growth and production of soybean plant (Glycine max L.). The research was conducted in Experimental station, Agrotechnology Department, University of Trunojoyo Madura. The experiment was arranged on a split plot design (SPD), with the main plot was manure types and the sub plot was inoculant application. The main plot consisted of two levels namely cow (P1) and chicken manure (P2), while the sub plot contained 2 levels, without (R0) and with inoculant Rhizobium (R1). There were 4 combination treatments; and each treatment was replicated for 6 times to end up on 24 experimental unis. As at each experimental unit there were three sample plants so that there were 72 plant samples. The results showed that rhizobium application caused plant root to form nodules that can potentially fix nitrogen; and the combination of Rhizobium inoculant and chicken manure tended to gave the highest result on pod and seed dry weight. Keywords: Soybean Plants, Rhizobium Inoculants, Root Nodule.

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