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Jurnal MEDIA AKADEMIK Vol. 5 No.2 Agustus 2011 – STIKOM Dinamika Bangsa - Jambi
Journal from gdlhub / 2012-02-08 11:36:19
Oleh : Ir. Nasamsir (Universitas Batanghari - Jambi), STIKOM Dinamika Bangsa Jambi
Dibuat : 2012-02-07, dengan 1 file

Keyword : rock phosphate, Tithonia diversifolia, Hevea brasiliensis Muell.Arg
Sumber pengambilan dokumen : LPPM STIKOM Dinamika Bangsa - Jambi

Effort Nitrogen, Phosphorus, and Potassium fertilizer substitution by rock phosphate and Tithonia as green manure application to increase the growth Hevea seedling just to be done, because the price of commercial fertilizer is hight. This study aims to determine interaction of pruned Tithonia as green manure and rock phosphate to increase the growth Hevea seedling. This research was conducted in Pattimura street, Jambi in April to July 2011 was arranged in factorial by two treatment, namely ; rock phosphate dosages in 4 rates 5 g (P1), 10 g (P2), 15 g (P3), and 20 g polybag-1 (P4), the second factor Tithonia dosages in 4 rates too, 200 g (T1), 300 g (T2), 400 g (T3), dan 500 g polybag-1 (T4) in three replications. This experiment result showed that there was no interaction betwen rock phosphate and Tithonia applications to hight plant, total leaf area, and root-shoot ratio. The study recommend that 400 g polybag-1 of Tithonia as green manure and and 15 g polybag-1 rock phosphate was asuitable substitution of Nitrogen, Phosphorus, and Potassium fertilizers to increase the growth of Hevea seedling.

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