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All Journal Jurnal Penelitian Hutan dan Konservasi Alam Journal of Sylva Indonesiana Jurnal Agrotropika
Sri Wilarso
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences

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PENGARUH PEMBERIAN PUPUK ORGANIK M-DEXT TERHADAP PERTUMBUHAN TANAMAN PALAHLAR (Dipterocarpus spp.) DI WILAYAH PERUM PERHUTANI BKPH JASINGA, KPH BOGOR Istomo, Istomo; Wilarso, Sri; Hidayat, Haris Arifiyanto
Jurnal Penelitian Hutan dan Konservasi Alam Vol 7, No 1 (2010): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

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Abstract

Salah satu upaya yang bisa dilakukan untuk mengatasi dan mencegah punahnya jenis pohon bernilai tinggi palahlar (Dipterocarpus spp.) di Jawa Barat  adalah dengan penanaman. Dalam menunjang keberhasilanpenanaman salah satu kegiatan pemeliharaan tanaman yang penting adalah pemupukan. Tujuan penelitian adalah untuk mengkaji pengaruh pemberian pupuk organik M-dext terhadap respon pertumbuhan anakan palahlar (Dipterocarpus retusus Bl. dan D. hasseltii Bl.).  Penelitian dilakukan pada blok penanaman palahlar di wilayah BKPH Jasinga, KPH Bogor seluas 3,5 ha. Rancangan penelitian menggunakan rancangan acaklengkap dalam percobaan faktorial dengan dua perlakuan yaitu jarak tanam (5 m x 5 m dan 3 m x 3 m) dan pemberian pupuk organik M-Dext (0,0; 1,0; dan 2,5 ml/tanaman). Waktu yang diperlukan untuk mengukurrespon pertumbuhan tanaman setelah pemupukan adalah enam bulan. Hasil penelitian menunjukkan bahwa kombinasi perlakuan jarak tanam 3 m x 3 m dengan dosis pupuk satu ml/tanaman memberikan pengaruhsangat nyata terhadap pertumbuhan tinggi dan diameter untuk D. hasseltii  masing-masing sebesar 2,31 cm/bulan dan 0,06 cm/bulan dan untuk D. restusus masing-masing 2,33 cm/bulan dan 0,03 cm/bulan
EFEKTIVITAS FUNGI MIKORIZA ARBUSKULAR DENGAN PROVENAN JARAK PAGAR PADA CEKAMAN KEKERINGAN Lapanjang, Iskandar M.; Purwoko, Bambang S.; Hariyadi, Hariyadi; Wilarso, Sri; Melati, Maya
JURNAL AGROTROPIKA Vol 16, No 1 (2011): Agrotropika Vol.16 No.1 2011
Publisher : JURNAL AGROTROPIKA

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The study was conducted to investigate the effectiveness of Arbuscular Mycorrhizae Fungi (AMF) to make a symbiosis with physic nuts under drought stress condition. The experiment was carried out in plastic house in Kota Palu, Central Sulawesi, from October 2008 to January 2009. The experiment used completely randomized block design with 3 factors and 3 replications. The first factor was AMF type i.e. without AMF, AMF Glomus sp-1p, AMF Acaulospora sp-1p, and mixture of Glomus sp-1p and Acaulospora sp-1p. The second factor was the provenances of physic nut i.e. Palu, NTB, IP-1A, and IP-1P. The third factor was soil water content i.e. 80 and 40% of field capacity. The results showed that the application of AMF resulted in better growth of all provenances especially ecotype IP-1P, which was sensitive to drought, compared to control (without AMF). At 40% field capacity, mixture of Glomus sp-1p and Acaulospora sp-1p. was more effective compared to single AMF in improving plant growth. The highest AMF infection was found in ecotype Palu inoculated with mixture of Glomus sp-1p and Acaulospora sp-1p. Key words: infection level, Glomus, Acaulospora
The Role of MycoSilvi, Lime and Compost on The Growth of Balsa (Ochroma bicolor Rowlee.) Seedling in Post Silica Sand Mine Media Wilarso, Sri; Putri Maharani; Andi Sukendro; Cahyo Wibowo
Journal of Sylva Indonesiana Vol. 3 No. 01 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (830.277 KB) | DOI: 10.32734/jsi.v3i01.2040

Abstract

Problems arising from silica sand mining are decreasing soil fertility, as well as the presence of high heavy metals such as Fe and Al, which inhibits the growth of revegetation plants. The purpose of this study was to analyze the response of the growth of balsa seedlings (Ochroma bicolor Rowlee.) on silica sand post-mining media treated with MycoSilvi, compost, and lime and determine the most optimal combination of MycoSilvi, compost, and lime treatment. This study uses a completely randomized design (CRD) with a split-plot design with 3 treatment factors, namely the addition of MycoSilvi, compost, and lime. Each treatment consisted of five replications. The results showed that the planting media that were not treated (control) was not able to support the growth of balsa seedlings. The interaction of MycoSilvi, compost, and lime significantly affected the height, diameter, biomass, and percentage of mycorrhizal colonization parameters, and significantly affected the plant chlorophyll content. The combination of MycoSilvi type 1 treatment, namely Glomus mosseae and lime (C0K1M1) type, resulted in the highest total growth rate, diameter, biomass, and colonization percentage compared to other treatments. The addition of lime and compost to the growth medium can reduce the degree of mycorrhizal dependency of balsa seedling.
Co-Authors Andi Sukendro Bambang S. Purwoko Cahyo Wibowo Haris Arifiyanto Hidayat, Haris Arifiyanto Iskandar M. Lapanjang Istomo . Maya Melati Putri Maharani Yoga Yuniadi