PEMAKAIAN KOMPOS ALANG-ALANG (Imperata cylindrica L. BEAUV) PADA TANAH ULTISOL DAN PENGARUHNYA TERHADAP KETERSEDIAAN P DAN PRODUKSI KEDELAI(Composed Alang-alang (Imperata cylindrica L. BEAUV) used to P-aviable and Soybean yield on Ultisol soil)

Burhanuddin, Burhanuddin and Zubaidah , Yulinar and Tasnim, Azhar (2010) PEMAKAIAN KOMPOS ALANG-ALANG (Imperata cylindrica L. BEAUV) PADA TANAH ULTISOL DAN PENGARUHNYA TERHADAP KETERSEDIAAN P DAN PRODUKSI KEDELAI(Composed Alang-alang (Imperata cylindrica L. BEAUV) used to P-aviable and Soybean yield on Ultisol soil). Stigma, VII (3). ISSN 0853-3776

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Abstract

The experiment was conductied at Green house in Agricultural Faculty of Unand and Laboratory of soil Departement. From march to July 1998. Soil used are Red Yellow Podzolic (Ultisol) soil from Ficulty of agricultural experimental Garden. The aim of the experiment was showing of influence of compose uplication of alang-alang to P-available and glycine max yield. The experiment was designed in Cornpletely Rondomized Design (CRD) with 4 levels of Composed use (0, 5, 10 dan 15 t/ha) and three replication.The results showed that application of alang-alang cornposed up to 15 t/ha increased C-Organic, pH and P-available respectively and Al excangable was decreased. Application of alang-alang Compposed did not give significont effect on glycine max yield.

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