PENGARUH TEKNIK PERBAIKAN TEGAKAN RUMPUN TERHADAP PENINGKATAN PRODUKTIVITAS BATANG BAMBU TALI (Gigantochloa apus KURZ.) (The effect of repairing technique to clumps stand to the culm productivities of bambu tali (Gigantochloa apus Kurz) ) - Yamin Mile, Sutiyono (2013)