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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Agromet MEDIA KONSERVASI Forum Pasca Sarjana Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences SAINS DAN MATEMATIKA BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Penelitian Hutan Tanaman Biogenesis: Jurnal Ilmiah Biologi AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya Jurnal Agro Journal of Tropical Biodiversity and Biotechnology Biosaintifika: Journal of Biology & Biology Education Jurnal Entomologi Indonesia Journal of Tropical Ethnobiology Jurnal Tanah dan Iklim Action Research Literate (ARL) Journal Of Sustainability Perspectives Journal of Sustainability Perspectives Policy Brief Pertanian, Kelautan, dan Biosains Tropika (Journal of Environmental Sustainability Management)
IBNUL QAYIM
Departemen Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor 16680
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Veterinary

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Journal : HAYATI Journal of Biosciences

 1 
Nitrogen Resorption and Nitrogen Use Efficiency in Cacao Agroforestry Systems Managed Differently in Central Sulawesi TRIADIATI TRIADIATI; SOEKISMAN TJITROSEMITO; EDI GUHARDJA; SUDARSONO SUDARSONO; IBNUL QAYIM; CHRISTOPH LEUSCHNER
HAYATI Journal of Biosciences Vol. 14 No. 4 (2007): December 2007
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.519 KB) | DOI: 10.4308/hjb.14.4.127

Abstract

Cacao agroforestry is a traditional form of agriculture practiced by the people of Central Sulawesi. These agroforestry systems vary from a simple system following selective cutting of forest trees, to a more sophisticated planting design. The cacao was planted under remaining forest covers (CF1), under planted trees (CF2), and between shade trees Gliricidia sepium (CP). The objectives of this study were to quantify nitrogen use efficiency (N NUE) and nitrogen resorption in cacao agroforestry systems. The N NUE at the ecosystem scale (N NUEES) for the cacao agroforestry systems were compared with the natural forest. The results showed that CP produced the highest litterfall and cacao foliar nitrogen. CP and CF1 produced litterfall and the nitrogen resorption that not were significantly different. In contrast, CF2 produced the lowest litterfall, hence required lower nitrogen supply. The nitrogen resorption of CF2 was less than that of CF1 and CP. However, N NUE in cacao plant (N NUEC) of CF2 was higher than that of the CP. The N NUEES of either CF1 or CF2 were similar to that of the natural forest, but higher than that of the CP. Using shade trees in cacao plantations increased foliar nitrogen concentration, nitrogen resorption, N NUEC and N NUEES; thus, might be one reason for a higher productivity of cacao in unshaded systems. Key words: cacao agroforestry system, cacao foliar nitrogen, nitrogen resorption, N NUE
Melissopalynology and Vegetation Analysis Surrounding Sunggau of Giant Honey Bee Apis dorsata in Belitung Regency Dwika Bramasta; Ibnul Qayim; Nina Ratna Djuita; Rika Raffiudin; Ramadhani Eka Putra; RC Hidayat Soesilohadi; Hery Purnobasuki
HAYATI Journal of Biosciences Vol. 30 No. 6 (2023): November 2023
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.30.6.1167-1174

Abstract

The forest conversion into oil palm plantations in Belitung impacts the plant source for pollen and nectar to support the honey bee Apis dorsata. This study aimed to identify the plants used by A. dorsata as pollen sources in honey and bee bread in honey bee nests and to analyze the vegetation composition and structure surrounding the sunggau (artificial nesting site) in Belitung Regency. Honey from A. dorsata was collected from bee nests in sunggau on Kampak Island and Tanjung Rusa. The pollen grains from 20 ml honey were acetolysed and counted until 1,200 grains for each honey sample. In Kampak Island, we found eight pollen types in honey dominated by Rhizophora mucronate mangrove pollen and eleven pollen types in bee bread dominated by Melaleuca cajuputi. The pollen type in honey in Tanjung Rusa was similar to those in Kampak Island, and nine pollen types were found in the bee bread dominated by Elaeis guineensis. The vegetation analysis revealed that mangrove and heath forests in Kampak Island were dominated by Lumnitzera littorea and Melaleuca cajuputi, respectively. The results of this study confirm the bees' notable use of the mangrove ecosystem, which adds conservation value, especially in supporting bee management efforts in Belitung.
Co-Authors , Triadiati ABDUL MUNIF Abdul Munif Abdul Qadir Akhmad Rizali Alfian Helmi Amigunani, Zahra Wajdini Amperanoto, Agus Arief Sabdo Yuwono Aulia Andi Mustika Budi Purwanto Christoph Leuschner D Djokosetianto Dede Setiadi Dede Setiadi Didie Soepandi Didy Sopandie Dodik Ridho Nurrochmat Dwi Utami , Anisa Dwika Bramasta Edi Guhardja Edi Guhardja Edi Guhardja Erizal , Erizal Erizal Erma Prihastanti Ervizal A. M. Zuhud Ervizal AMZU Febrita, Joana Fifi Gus Dwiyanti Handian Purwawangsa Hery Purnobasuki Hidayat, Febrian R Hudaya, Aang Husin Alatas Ignatius Muhadiono Ilma Rahmawati Inggit Puji Astuti IPB, BPKB ISKANDAR ZULKARNAEN SIREGAR Iwan Hilwan Jamili Jamili Jani Master Jani Master, Jani Khairul Amri Khairunnisa, Zayyaan Nabiila Khoirunisa, Hana Khoirunnisa, Hana Laksono Trisnantoro Lilik B Prasetyo Lilik B. Prasetyo Lilik B. Prasetyo Mangunah Mangunah Meti Ekayani Muhadiono, Ignatius Muhammad Basrowi Nadita Zairina Suchesdian Nina Ratna Djuita Nyoto Santoso Peniwidiyanti Peniwidiyanti Putra, Heriansyah Qadir, Abdul Rahman, Firman Ali Rai Sita Ramadhani Eka Putra Ramadhanis, Zainab Dwi RC Hidayat Soesilohadi Rifnadhi, Bayu RIKA RAFFIUDIN Rina Mardiana Rukmana, Adi Rustam, Aswar Samin Botanri Sari, Windi Mayang Satyanto Krido Saptomo Sethyo Vieni Sari Simon Sutarno Slamet Arif Susanto Slamet, Alim S Sobri Effendy Soekisman T SOEKISMAN TJITROSEMITO Sudarsono Sulistijorini Sutoyo Sutoyo TATIK CHIKMAWATI Tjitrosoedirdjo, Soekisman Utami, Anisa D Utami, Anisa Dwi Utami, Annisa Dwi Wahdina Winda Utami Putri Winda Utami Putri WINDRA PRIAWANDIPUTRA, WINDRA Y. Purwanto Yohanes Purwanto Yohanes Purwanto Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yusli Wardiatno Zaenal Abidin