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PENGARUH BAHAN ORGANIK (Pueraria javanica) DAN FOSFAT ALAM TERHADAP PERTUMBUHAN DAN SERAPAN P TANAMAN JAGUNG (Zea mays) PADA ANDISOL PASIR SARONGGE
(Departemen Ilmu Tanah dan Sumberdaya Lahan IPB, 2003)
Phosphor (P) is the second esensial element after nitrogen which is needed by plants, however, its avalilability is a problem in vulcanic ash soils such as Andisol...