Jurnal Nusa Tani Volume 5 No. 2 Desember 2005

Jurnal Nusa Tani Volume 5 No. 2 Desember 2005

Pengaruh Sumber Unsur Nitrogen Terhadap Pertumbuhan Species Draceana

Oleh :

Heni Juhaeni ¹⁾, Aisyah ²⁾, Singgih Andyantoro ³⁾

Program Studi Agroteknologi

Fakultas Pertanian Universitas Nusa Bangsa Bogor

Email:jurnal.nusatani@yahoo.co.id

Abstrak

Nitrogen merupakan unsure kunci pertumbuhan tanaman hias daun (Conover, 1980). Sekalipun Nitrogen di alam cukup banyak, yaitu sekitar 78% tetapi tanaman sering mengalami kekurangan.

Tujuan penelitian ini adalah untuk mengetahui pengaruh enpat jenis pupuk sebagai sumber unsure Nitrogen terhadap pertumbuhan spesies Draceana. Penelitian dilakukan di kebun percobaan Balai Penelitian Tanaman Hias Segunung Cianjur, pada bulan oktober 2002 sampai dengan bulan Juni 2003.

Hasil penelitian menunjukan bahwa pupuk Kalium Nitrat dan Amonium nitrat memberikan pengaruh yang baik terhadap pertumbuhan batang Draceana saneriana dan Draceana comfacta dibanding dengan urea dan ZA, dan juga berpengaruh nyata terhadap panjang daun Draceana sanderiana. Kalium Nitrat dan Amonium klorofil dan Draseana surculosa dan Draceana comfacta. Semua unsure Nitrogen baik Urea, Amonium Nitrat, Amonium Sulfat dan Kalium Nitrat memberikan pengaruh yang sama terhadap pertumbuhan batang daun Draceana surculosa.

Kata kunci : Unsur Nitrogen, pertumbuhan species Draceana.

Abstract

Juhaeni H., Aisyah, S. Andyantoro, 2005. influence source Of Element of Nitrogen To Growth of Species of  Dracaena. Nusa Tani Journal Vol. 5 No. 2 Desember 2005 : 1 – 9

Nitrogen is element key growth of decorative crop of leaf (Conover, 1980). Even if Nitrogen in nature quite a lot, that is about 78% but crop often experience of insuffiency.

This Research target is to know influence four type fertilizi as Nitrogen element source to growth of Dracaena species. Research conducted in garden attempt of Hall Research Of Decorative Crop Segunung of Cianjur, in October 2002 up to June 2003.

Research result indicate that Potassium Nitrate fertilizer and Amonium nitrate give influence which do well by growth of stick of Draceana sanderiana and Draceana comfacta compared to urea and ZA, as well as having an effect on reality to leaf length of Dracaena sanderiana. Potassium Nitrate and Amonium Nitrate is the crouse of better Nitrogen at average of wide, area, leaf chlorophyll content and wight of Draceana surculosa and Draceana comfacta. All of good Nitrogen element such as Urea, Amonium Nitrate, Anomium Sulphate and Potassium Nitrate give the same influence to growth of leaf stick of Dracaena surculosa.

Keyword s: Element Nitrogen, growth of Draceana species.

1)	Alumni Fakultas Pertanian Universitas Nusa Bangsa.
2)	Dosen Tetap Program Studi Agroteknologi Fakultas Pertanian Universitas Nusa Bangsa.
3)	Dosen Tetap Program Studi Agroteknologi Fakultas Pertanian Universitas Nusa Bangsa.

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