Abstract
In general, weeds are obnoxious plants that live in an unwanted place and have negative impact towards human, other plants and the environment. The research aimed to know the weeds species composition that composed in the growing media of Guadua chacoensis bamboo. The research was conducted in an open space of the Bali Botanical Garden nursery at an altitude of 1200 m a.s.l. The research was conducted for 3 months from July to October 2004. Results showed that as many as 28 species of weeds were found which included in 15 families. Weeds species compositions in each of the type of growing media are significantly different. In the soil media weeds comprises of Amaranthus blitum L. (Amaranthaceae) and Galinsoga parviflora Cav. (Asteraceae), in the humus media the weeds are Cyperus rotundus L. (Cyperaceae) and Gynura aurantiaca (Bl.) DC. (Asteraceae), in the cow’s feces media, the weeds is Amaranthus blitum L. (Amaranthaceae) and laslty in the KOMPENIT fertilizer media the weeds comprises of Eleusine indica (L.) Gaertn.(Poaceae), Drymaria cordata (L.) Willd. ex R. & S. (Caryophyllaceae ) and Cyperus rotundus L. (Cyperaceae).
Highlights
obnoxious plants that live in an unwanted place
know the weeds species composition that composed in the growing media of Guadua chacoensis bamboo
The research was conducted in an open space of the Bali Botanical Garden nursery
Summary
Penelitian dilaksanakan di ruang terbuka Pembibitan Kebun Raya Eka Karya Bali Bedugul pada ketinggian tempat 1.200 m di atas permukaan laut. Media tanah diambil dari tanah lapisan atas yang terdapat di wilayah pembibitan Kebun Raya Eka Karya Bali. Media humus hutan diambil dari serasah hutan yang telah mengalami pelapukan di wilayah Kebun Raya Eka Karya Bali. Media kompenit adalah pupuk organik yang diproduksi oleh Kebun Raya Eka Karya Bali dengan cara mengolah sisa-sisa bahan organik berupa serasah daun tanaman koleksi, bekas cukuran rumput, sampah pengunjung dan lain-lain yang dalam proses pengerjaannya diperkaya dengan mikroorganisme Azotobacter pengikat Nitogen. Data kelimpahan dan komposisi jenis gulma pada seluruh plot sampling di tabulasikan dalam Excel dan digunakan untuk analisis of similarity (ANOSIM) Analisis ini bertujuan untuk mengetahui apakah ada perbedaan yang signifikan dalam hal komposisi jenis gulma pada tiap-tiap plot dengan media tanam tanaman pokok bambu yang berbeda-beda.
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