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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Buletin Tanaman Tembakau, Serat & Minyak Industri Jurnal Pembangunan dan Alam Lestari Journal of Tropical Plant Protection AGRIVITA, Journal of Agricultural Science JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Penelitian Pertanian Tanaman Pangan Biosaintifika: Journal of Biology & Biology Education Buletin Tanaman Tembakau, Serat & Minyak Industri Jurnal HPT (Hama Penyakit Tumbuhan)
Bambang Tri Rahardjo
Jurusan Hama Dan Penyakit Tumbuhan Fakultas Pertanian Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Environmental Science

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Journal : AGRIVITA, Journal of Agricultural Science

 1 
SAGO BARUK PALM (Arenga microcarpha Becc) AS A SUPERIOR LOCAL FOOD SOURCE AND SOIL CONSERVATION PLANT AT SANGIHE ISLAND REGENCY Marianus, Marianus; Ashari, Sumeru; Rahardjo, Bambang Tri; Polii-Mandang, Bobby
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i2.119

Abstract

Sagu Baruk Palm (Arenga microcarpha) is an endemic plant and producing carbohydrates as main source of local food to the people in Sangihe Island . The aim of this study is to analyze the production of  the sago and to analyze its the chemical composition and nutritional value. The research was conducted from October 2010 to June 2011 at Gunung Village Tabukan Tengah Regency Sangihe district Island. The village is spread from the coast up to the top of the hill with an altitude of ± 600 meters above sea level. The data analysis techniques in this research is descriptive analysis, F test, ANOVA.The results showed that the production of Sagu Baruk Palm at the third height position for the stem lenght 9.7-11m and stem diameter 14.3-15.7cm obtain wet sago flour 44-44.3kg and the stem rendemen from 21.3% to 22.3%, statistically only stem weight and pith weight has a significant different. The highest stem weight obtained at the bottom position, the highest pith weight obtain at the top position, and for the higest stem rendemen obtain at the top position . The chemical composition were significant differences in levels of protein, calcium, iron, magnesium, and pH at the three height positions.Key words: Superior local food sources, stem rendemen, production, sagu baruk palm.
Silica Fertilizer (Si) Enhances Sugarcane Resistance to The Sugarcane Top Borer Scirpophaga excerptalis Walker Rahardjo, Bambang Tri; Achadian, Etik Mar`ati; Taufiqurrahman, Achmad Fitriadi; Hidayat, Mohamad Rizkiy
AGRIVITA, Journal of Agricultural Science Vol 43, No 1 (2021)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v1i1.2654

Abstract

Sugarcane is an essential industrial that produce sugar in the world. Scirpophaga excerptalis attacks can reduce the productivity of sugarcane up to 34%. To enhance the resistance to multiple stresses, Silicon is one of the elements for its role. This research aimed to determine the effect of the provision of silica fertilizer as part of the Integrated Pest Management strategy. This research was conducted in the Plant Protection Department, Indonesian Sugar Research Institute. The compost given as treatment in this research was straw, cane, and corn composts. Organic silica fertilizer (compost) provides the same effect as inorganic silica fertilizer in increasing the induction of sugarcane resistance to sugarcane top borer (S. excerptalis). Rice straw compost was a compost fertilizer that provides the best sugarcane resistance to sugarcane top borer compared to sugarcane plants that treated with sugarcane and corn leave to compost
Sugarcane Leaf Litter as Soil Amendment to Stimulate Collembolan Diversity Bambang Tri Rahardjo; Rina Rachmawati; David Soetjipto
AGRIVITA, Journal of Agricultural Science Vol 41, No 2 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i2.2245

Abstract

The sugarcane leaf litter contains organic material and if it is returned to the soil, it will increase the diversity of Collembola. Collembola has an important role as a decomposer of soil organic matter and bioindicator of soil health. This study was conducted to determine the effect of sugarcane leaf litter on the diversity of Collembolan in sugarcane plantation at Kebonagung Sugar Factory, Malang. This study was conducted from March to June 2018. Transect method was used in sampling method. The pitfall traps were used to obtain Collembolan samples on the surface of the ground while the Berlese-Tullgren funnels were used to obtain Collembolan samples inside the soil. A total of 5,535 collembolan were collected. Five species were collected, including Brachystomella sp., Folsomides sp., Mesaphorura sp., Alloscopus sp., and Dicranocentrus sp. Applying sugarcane leaf litter to the soil has a positive effect on Collembolan diversity, as evidenced by the increasing value of diversity index on the soil surface from 0.53 to 1.11 and decreasing the value of dominance index on the soil surface from 0.76 to 0.43.
Co-Authors A. A. Ketut Aryawan Abdul Latief Abadi Achadian, Etik Mar`ati Achmad Faisal Akbar Ahmad Muhlisin Ahmad Muhlisin Akhmad Rizali Antika Anggraini Ayu Rosmayuningsih Ayu Rosmayuningsih BANDUNG SAHARI Bobby Polii David Soetjipto Dede Durahman Dede Durahman Fitriani, Ima Guntur Respyan Guntur Respyan Hagus Tarno Hagus Terno Hidayat, Mohamad Rizkiy Husni dan Zulfanazli Pudjianto Alfian Rusdy Isnainy Dinul Mursyalati Yus Isnainy Dinul Mursyalati Yus Jami'at Dwi Elriyono Jantje Pelealu Karisma Aditya Wardani Kristiana Sri Wijayanti Kurnia Paramita Sari Liza Afifah Liza Afifah Ludji Pantja Astuti Ludji Pantja Astuti Marianus Marianus Marwoto . Maspupah Huzni Maspupah Huzni Meity Nelltje Tanor Mufidah Afiyanti Muhammad Indar Pramudi Nurul Aini Presti Mardiyani Purwaningtyas, Presti Mardiyani PURNAMA HIDAYAT Putri Setya Rahmita Retno Dyah Puspitarini Rina Rachmawati Rina Rachmawati Rina Rachmawati Rizki Puji Widiastuti Rizki Puji Widiastuti Ronny Pamuji Ronny Pamuji Rose Novita Sari Handoko Senoaji, Wasis Sri Karindah Sri Karindah Sumeru Ashari Syamsuddin Djauhari Syamsuddin Djauhari Taufiqurrahman, Achmad Fitriadi Tita Widjayanti Toto Himawan Zeni Ningrum Zeni Ningrum