http://repository.ipb.ac.id/handle/123456789/54434 Fri, 24 Apr 2026 23:15:12 GMT 2026-04-24T23:15:12Z http://repository.ipb.ac.id/handle/123456789/54501 Pertumbuhan Tanaman Pokok Cendana (Santalum album Linn.) pada Sistem Agroforestri di Desa Sanirin, Kecamatan Balibo, Kabupaten Bobonaro, Timor Leste Julião de Araujo; Wijayanto, Nurheni One of Forest and Land Participatory Rehabilitation Program (RHLP) is the implementation of agroforestry system. Agroforestry chosen as the solution of optimal land utilization so it would provide additional output value of either physical or financial results.This research aims to study more the growth of Sandalwood (S. album) as primary tree in some agroforestry. Field activities done at Sanirin Village, Balibo Sub District, and Bobonaro District. The observed dimensions of main crop were height, diameter, length and width of the tree canopy. Biophysical environmental conditions of soil properties and tree canopy closure were also observed. Data was taken from several agroforestry patterns. The data then analysed descriptively to the growth parameters of main crops associated with the pattern of developed agroforestry and its management techniques. There are there types of agroforestry pattern, named AF1, AF2 and AF3. Each of AFs has combination of crops such as AF1 combination of S. album,Tectona grandis L., Sweteniasp., Aquilarium sp., Cajanus cajan, Zea mays, Cucurbita pepo, AF2 combination S. album,Sesbania sp., Cajanus cajan, Zea mays, Cucurbita pepo and AF3 is combination of S. album, Tectona grandis L., Swetenia sp., Zea mays, Manihot utilisima. The AF3 has worst performance in height and diameter growth, while AF2 is having best performance in height and diameter growth. In the crown covered, the AF2 type is gained highest percentage compared to the others. The results showed that the growth of primary tree in agroforestry pattern to produce cassava is the lowest thanto the others .The availability of P and K elements suspected to be the cause of low growth of primary crop. Land management activities are only focused on the productivity of agricultural crops caused the crops and the main crop is uneven. Sat, 01 Jan 2011 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/54501 2011-01-01T00:00:00Z http://repository.ipb.ac.id/handle/123456789/54500 Pengaruh Agroforestri Jarak Pagar (Jatropha curcas Linn.) Terhadap Produktivitas Lahan dan Kualitas Lingkungan di Areal Perum Perhutani KPH Bogor Istomo; Wasis, Basuki; Prihatiningtyas, Eva Agroforestry is one of society based forest management which have had important role to maintain and recover land productivity since years ago. Ecological consideration was needed for such agroforestry which involve the use of natural resources sustainable, by minimizing erosion and surface flow volume, and also biophysical environment. Jatropha planting was aimed to fulfill market demand of Bio-fuel as alternate energy. This research was aimed to quantify jatropha’s growth and land productivity in jatropha based agroforestry system; also to observe how jatropha based agroforestry system affected environmental change (soil physical, chemical and biological properties, and soil erosion). The result showed that the best jatropha’s growth response to height was the jatropha planting treatment as fencing in young mahogany plot. Land productivity showed by increasing total above-ground biomass rised the highest level in 2nd repetition of young mahogany plot, jatropha plant above ground biomass increased high in 1st repetition plot of young mahogany. Surface flow showed incisive decrease in young mahogany plot (with the smallest mean value). The jatropha based agroforestry system mixed with young mahogany also showed the lowest erosion level. The highest value of sedimentation was showed in marginal area as control treatment, and the lowest in jatropha based agroforestry system mixed with young mahogany. Content of soil C-organic, total-N and CEC were increase during observation, though jatropha planting was not significantly affected soil physical and chemical properties. The 2nd jatropha plantation mixed with young mahogany plot showed the best response to fungal content. Particularly jatropha based agroforestry mixed with young mahogany showed better impact on soil quality than marginal area. Sat, 01 Jan 2011 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/54500 2011-01-01T00:00:00Z http://repository.ipb.ac.id/handle/123456789/54499 Pengaruh Pemberian Pupuk Kompos terhadap Pertumbuhan Semai Mahoni (Swietenia macrophylla King.) pada Media Tanah Bekas Tambang Emas (Tailing) Wasis, Basuki; Sandrasari, Agustina Tailing is one form of waste produced in large quantities in the gold mining activities are nutrient poor. Therefore it is necessary for land revegetation in these tailings. Revegetation activities must be conducted on former mining land, but often encounter obstacles that revegetation efforts are quite heavy. The success of revegetation on land that is dominated by tailings require plants that are able to adapt as mahagony seedling (Swietenia macrophylla), which has the potential if planted in dry soil as the soil tailings. This study used a complete randomized design. The results showed 30 grams of compost fertilizer effect is very real influence with the percentage growth of 40.70% against the control with an average growth of 6.81 cm. Sat, 01 Jan 2011 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/54499 2011-01-01T00:00:00Z http://repository.ipb.ac.id/handle/123456789/54498 Hubungan antara Trypsin Inhibitor dan Alfa-Amylase Inhibitor Pohon Sengon terhadap Perkembangan Larva Boktor dalam Artificial Diet Siregar, Ulfah Juniarti; Haneda, Noor Farikhah; Flowrensia, Laura Sengon (Paraserianthes falcataria (L) Nielsen) is widely planted for reforestation programs, especially in establishment of community forest as its timber is utilized for constrction, package box, lighter as well as raw material of pulp and paper. However, there is main problem in sengon plantation, which is boktor (Xystrocera festiva Pascoe) pest attact. In the midgut of boktor larvae it was detected trypsin and α-amylase enzymes activity. Whereas on sengon tree it was reported contains inhibitory substance against trypsin and α-amylase enzymes of boktor larvae. The inhibitory activity was assumed as defense mechanism of sengon tree against the pest attack. In order to clarify the assumption an investigation on the correlation between trypsin and α-amylase inhibitor of sengon with larval growth on an artificial diet is necessary. The experiments aimed at obtaining correlations between the activities of trypsin and α-amylase inhibitors of sengon tree with the growth of boktor larvae, with small (±1,5 cm) and big sizes (±3 cm) on an artificial diet containing respective sengon tree materials. Sat, 01 Jan 2011 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/54498 2011-01-01T00:00:00Z