http://repository.ipb.ac.id/handle/123456789/29116 Sat, 25 Apr 2026 16:00:06 GMT 2026-04-25T16:00:06Z http://repository.ipb.ac.id/handle/123456789/110778 AKTIVITAS NANOMAGNETIT terhadap KANDUNGAN KLOROFIL pada TANAMAN BAYAM (Amaranthus spp); Nanomagnetite Activity toward Chrophyll inside Spinach (Amaranthus spp.) Hartono, Maiyani; Sugiarti, Sri; Darusman, Latifah K. Synthesis of nanomagnetite was complete by hydrothermal on mixtures of urea, citric acid and some of iron salts: FeCl3·6H2O at 200 o C (FE120), FeCl3·6H2O at 250 o C (FE125), FeSO4·7H2O at 200 o C (FE220), and FeSO4·7H2O at 250 o C formula. Each of formula showed that averages of crystal sizes were 24.89 nm, 25.82 nm, 28.22 nm and 50.78 nm by XRD identification. Application of FE120 nanomagnetites was applied into spinaches increased concentration of iron and nitrogen after 30 days growth. The iron concentration was increased 3.62 % on soil media and 38.81 % on compos soil media. Nitrogen concentrations were increased 27.32 % on soil media and 66.67 % on compos soil media. Based on increased of iron and nitrogen concentration, there were influent of chlorophyll concentration 20.80 % on compos soil media and 8.87 % on soil media. Spinach that applied into media show the physics quality of stem diameter, leaf number, leaf area, and stem number better than control. Soil media and compos soil media weren’t contaminated by iron and nitrogen inside of FE120 nanomagnetite. Fri, 01 Jan 2016 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/110778 2016-01-01T00:00:00Z http://repository.ipb.ac.id/handle/123456789/98664 Population and Habitat Study of Javan Green Peafowl (Pavo muticus muticus Linnaeus 1758 ) at Ciawitali Teak forest Plantation of BKPH Buahdua and BKPH Songgom, KPH Sumedang Hernowo, Jarwadi B; Hernawan, Endang Kajian !erhadap populasi dan habitat merak hijau jawa (Pavo mutlcus mUlicus Linnacus, 1758) !elah dilakukan selama 4 bulan, Juni - September 2002 di hutan tanaman jati Ciawitali BKPH. Buahdua dan Songgom, KPH Sumedang. Pengamatan !erhadap populasi dilakukan dengan metode langsung dengan menggunakan transek di areal hutan' tanaman jali, tumpang sari serta areal terbuka dan ekotonnya. Habitat merak hijau dikaji dcngan pcndekatan analisis vegetasi serta analisis prcfercnsi terhadap fungsi habitat. Hasil pcnelitian menunjukkan bahwa kelimpahan populasi merak hijau jawa berbeda pada berbagai tipe habitat : umur tegakan, areal terbub (rcrumputan dan scsemakan), areal tumpang sari. ekoton berbagai habitat serta patch. Kelimpahan populasi yang paling tinggi pada habitat mosaik antara hutan tanaman jati umur tua, tempatterbuka (rerumputan dan sescmakan). riparian serta ekotonnya. Struktur umur seolah populasi tua, dan nisbah kelamin sepcrti pol a hidup monogamus. Habitat yang disukai merak hijau di hutan jati merupakan mosaik hutan jati, tempat terbuka (rerumputan dan sesemakan), areal tumpang sari, dacrah riparian serta ekoton dari berbagai habitatterscbut. Tempat untuk mencari pakan, merak hijau menyukai tempat terbuka daerah rcrumputan dan sesemakan ataupun di areal tumpang sari. Merak hijau memilih tempat tidur pada pohon yang tinggi. pcrcabangan mendatar. dekat pohon untuk tidur terdapat tempat terbuka. Tempat untuk berteduh dipilih pohon yang rindang. Untuk berlindung memilih vegetasi yang rapat. Sarang diletakkan pada tempat terbuka (dacrah rerumputan dan sesemakan). Gangguan terhadap merak hijau yang sangat mengkhawatirkan adalah perburuan baik burung maupun telurnya. Wed, 01 Jan 2003 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/98664 2003-01-01T00:00:00Z http://repository.ipb.ac.id/handle/123456789/98663 Studi Morfologi, Perilaku Reproduksi, Habitat dan Kadungan Pestisida Pada Burung Wilwo (Mycteria cinerea) Dalam Musim Berbiak Di Suaka Margasatwa Pulau Rambut, Jakarta Hernowo, Jarwadi B; Gani, Fadli A; Sugiri, Nawangsari; Mardiastuti, Ani The researc~ was conducted to examine the morphology of male and female of Mil'''' Stork In the field, nest trees and reproduction (sexual' feeding re t· behnTa vior and growt h a f young and pes'tic i.d e content within I"e gg shells. S Tmheg research has been C?~~uc~ed from February 2000 to February 2001. The research consisted of twcractlv~tles .,.e. (1~ ~n Rambut Island for 6 months (2) in the Lab of Biochemistry and ~~zlmatlc, Balitblo, Bogar, for 4 months to analyze the content of the egg shell pesticide. The sexual morphology of Milky Stork was different based on the color of the beaks head, face color of feathers on the body on neck. Morphological characters can be used to distinguish the sex of the bird. The male neck, part of cervical vertebrae bend forward, while the back band upward when nesting. The population of Milky Stork in February and March was 26 individuals, but the total young in March, April and May were 29 individuals, so that at the end of the breading season there were 55 individuals. Milky Stork used most Kepuh trees (Sterculia foetida) for nesting because the trees are tall, have large strong but branches not rigid. The average height of the nest trees was 21,46± 4,48 m and the average diameter was 1.003 ± 0.15 m. The Milky Stork needed 3.45 ± 0.37 minutes for courtship and 2.5 ± 2.9 seconds for copulation. The average time to get materials for the nest was 12.0 ± 3.1 minutes for male and 9.0 ± 4.1 minutes on female. To build the nests most were done by the female (1Ot 3.1 minutes) while by the male was 12.1± 9.0 minutes. The average size of the Milky Stork nest is 55.3 em long, 7.14 cm thick, and 48.5 cm wide. The female needed 42.27 ± 26.57 minutes for incubation, while the male needed 43.39 ± 27. 13 minutes. The male spent 47.50 ± 16.25 minutes to get food, while the female spent 56.51± 3.54 minutes. The resting time of male was 28.58 ± 9.54 minutes and of the female wa~ 30.25 ± 12.59 minutes. The growth of body weight and length started from 5 until 25 days, the beak and the weight grew faster after 20 days old. Breast and the tibiotarsus also grew faster after 20 days old. The tarsometarsus, radius and ulna grew faster after 10 days old. While, the tail (pygostyle) grew after 15 days old. ~ seems that the young grew normally. During the development. of the young th: ha~ not been seen any abnormality. The average concentration of endosulp an reSidue in the shell was 0.04 ± 0.007 ppm. Sat, 01 Jan 2005 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/98663 2005-01-01T00:00:00Z http://repository.ipb.ac.id/handle/123456789/98662 Demographic Parameters and Behaviours of Sulawesi Warty PIG (Sus celebensis Muller and Schlegel 1843) in Tanjung Peropa Wildlife Reserve, Southeast Sulawesi J.B. Hernowo; M. Jamaludin; A. H. Mustari; J.A. Burton Studi ini bertujuan untuk mengetahui kepadatan populasi, ukuran populasi, struktur umur, jumlah anak per kelahiran (litter size) dan perilaku babi hutan sulawesi (warty pig) di Suaka Margasatwa Tanjung Peropa di Sulawesi Tenggara. Hasil penelitian menunjukkan bahwa kepadatan populasi babi hutan sulawesi di suaka margasatwa mencapai 43 individu per km2 berarti jumlah populasi total diperkirakan sebanyak 13.594 individu (dalam area berhutan seluas 389,37 km2). Di bagian selatan suaka margasatwa dimana studi ini dilaksanakan secara invensif, didapatkan jumlah individu menurut struktur umur berturut-turut untuk bayi, muda, dewasa dan tua adalah 34, 29, 23 dan 2 individu. Seks rasio 1 : 1,44 untuk populasi total dan 1:1,25 untuk populasi reproduktif, dan litter size adalah 1-3 bayi. Kategori perilaku yang diamati terdiri dari mencari makan, berkubang dan istirahat. Sedangkan perilaku sosial babi hutan sulawesi yang ditemukan terdiri dari perilaku makan, berkubang, aktivitas seksual dan penghindaran predator. Tue, 01 Jan 2008 00:00:00 GMT http://repository.ipb.ac.id/handle/123456789/98662 2008-01-01T00:00:00Z