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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Pusat Inovasi Masyarakat

Ade Wachjar

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Author-ID : 2427123

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Social Sciences

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Pengaruh Beberapa Jenis Pupuk Hayati terhadap Pertumbuhan Dua Klon Tanaman Teh (Camellia sinensis (L) O. Kuntze) Belum Menghasilkan Ade Wachjar; , Supijatno; Dina Rubiana
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 3 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was carried out to study the effect of biofertilizer on the growth of two clones of young tea. This experiment was conducted at Cikabayan Experiment Station, Faculty of Agricuture, IPB, Bogor, from July to November 2000. This experiment was arranged in Split Plot Design with three replications. The main factor was clone types consisted of two clones i.e.: RB 3 and Gambung 5, whereas the sub factor was biofertilizer consisted of five kinds i.e. : EMAS + 50 % inorganic fertilizer recommended dosage (i.f.r.d.), EM4 + 50 % i.f.r.d., OST + 50 % i.f.r.d., Soils Plus + 50 % i.f.r.d. and 100 % i.f.r.d. The results showed that the EMAS + 50 % i.f.r.d. and EM4 + 50 % i.f.r.d. treatments significantly increased plant height, stem diameter, leaf number, and bud length. The application of 6.25 g EMAS per plant (equivalent with 83.125 kg/ha) + 50 % i.f.r.d. and 10 ml EM4 (equivalent with 6.65 l/ha) + 50 % i.f.r.d. could reduce application of inorganic fertilizer dosage until 50 % and resulted in the growth of the plant which was better than that of inorganic fertilizer. In general, growth of the RB 3 clone was better than Gambung 5 clone. Key words : Biofertilizer, clones, vegetative growth, tea

Pengaruh Kombinasi Pupuk Organik Cair dan Pupuk Anorganik serta Frekuensi Aplikasinya terhadap Pertumbuhan Tanaman Kakao (Theobroma cacao L.) Belum Menghasilkan Ade Wachjar; Luga Kadarisman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 35 No. 3 (2007): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

This research was conducted from November 2002 to Mei 2003 in Cikabayan Research Station, Faculty of Agriculture, IPB. The objective of this research was to determine the effect of combination of liquid organic fertilizer Bioton and inorganic fertilizer and frequency of application on the growth of two year old cocoa (Theobroma cacao L.). This research was arranged in randomized block design with two factors. First factor was concentration of liquid organic fertilizer Bioton with five levels, i.e. 0 ml/l + 100% inorganic fertilizer recommended dosage (i.f.r.d.), 5 ml/l + 80% i.f.r.d., 10 ml/l + 60% i.f.r.d., 15 ml/l + 40% i.f.r.d., 20 ml/l + 20% i.f.r.d.; the second factors was frequency of application of liquid organic fertilizer Bioton with two levels, i.e. once every two weeks and once every four weeks. Every treatment was replicated three times with two plants in each experimental unit. The combination of liquid organic fertilizer Bioton and inorganic fertilizer gave the best result to the diameter of stem and the primary length of branch, and the frequency of application of liquid organic fertilizer Bioton gave no effect in all parameters. Interaction between frequency of application of liquid organic fertilizer Bioton and combination of fertilizer gave the effect only to the width of the biggest leaf at the sixteen weeks after the first treatment. The spraying of liquid organic fertilizer Bioton with concentration 15 ml/l + 40% i.f.r.d., gave the best result on the growth of plant compared to other concentrations (5 ml/l + 80% i.f.r.d., 10 ml/l + 60% i.f.r.d., and 20 ml/l + 20% i.f.r.d. Frrequency of Bioton application once every four weeks was suggested. Key words : Cocoa, liquid organic fertilizer, inorganic fertilizer, concentration, rotation of application

Pengaruh Inokulasi Dua Spesies Cendawan Mikoriza Arbuskula dan Pemupukan Fosfor terhadap Pertumbuhan dan Serapan Fosfor Tajuk Bibit Kelapa Sawit ( Elaeis guineensis Jacq.) Ade Wachjar; Yadi Setiadi; Ninin Yunike
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 30 No. 3 (2002): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The objective of this experiment was to evaluate the effect of two Arbuscular Mychorrhizal Fungi (AMF) species and phosphorus fertilization on growth and shoot P-uptake of oil palm seedling. Experiment was conducted from September 1999 to March 2000 at Darmaga, the Cikabayan Experiment Station of Bogor Agricultural University. The experiment was arranged in Randomized Bloqk Design with five replications. The first factor was species of AMF. consisted of without AMF. inoculation with Glomus aJlJlreJlatum (OG-I05) and inoculation with Glomus manihotis (INDO-I). The secondfactor was dosage of phosphorus consisted of 0, 0.577, 1.154 and 1.734 g P/seedling.The Arbuscular Mycorrhizal Fungi did not increase height of seedling, leaves total (except on leaves total at 28 weeks after planting), shoot biomass, total biomass. and shoot P-uptake compare to the control. Shoot P-uptake was significantly decreased on seedling which was inoculated with G. manihotis compare to inoculated G. aJlJlreJlatum and control. Phosphorus fertilizer and it's interaction with species of AMF did not give any influence on growth and shoot P-uptake of the oil palm seedling. Keywords.. Mycorrhizal fungi. Phosphorus fertilization, Oil palm

Pengaruh Pupuk Organik dan Intensitas Naungan terhadap Pertumbuhan Bibit Kopi Robusta (Coffee canephora Pierre ex Froehner) Ade Wachjar; Yadi Setiadi; Lies Wahyuni Mardhikanto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 30 No. 1 (2002): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed at study the effect of organic fertilizer and shading inetnsity on yhe growth of Robusta coffee seedling. Seven month old seedling of hybrid variety of BP 42 and BP 358 crossing were used in the experiment was conducted at Cikabayan Experimental Station Bogor Agriculture University, from July 2000 to January 2001. The experiment was arranged in split plot dessign with three replications. the main plot was shading intensity cinsisted of 25% (N1), 50% (N2), 75% (N3), and 100% (N4) shade. The sub plot was organic fertilizer consisting of 4 g EMAS + 1/2 dosage of inorganic fertilizier (d.i.f), 4 ml EM4 + 1/2 d.i.f (P2), 4 g OST + 1/2 d.i.f(P3), 20 ml Soils Plus + 1/2 d.i.f(P4) and 1 dosage of inorganic fertilizer (P5). Organic fertilizer affected growth, as shown by height and stem diameter of seedling at early period of experiment and shoot biomass at the end of experiment compared to one effect on all variable during the experiment. Keyword : Coffee, Shading, Oerganic fertilizer

PENGARUH PENGGUNAAN PUPUK HAYATI TERHADAP PERTUMBUHAN TANAMAN BELUM MENGHASlLKAN (TBM I) KOPI ROBUSTA (Coffea canephora Pierre ex Froehner) Ahmad Junaedi; Ade Wachjar; Achirul Rahman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 27 No. 2 (1999): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

This experiment was aimed to study the effect of biofertilizer on growth of young Robusta coffee. New planting of Robusta coffee BP 42 x BP 358 was used with Randomized Complete Block Design and 3 replications. Treatments were fertilization as follows : P1 (20 g EMAS + 50 % recognized dosage of inorganic fertilizer (d.a.p.a.)), P2 (10 ml EM 4 + 50 % d.a.p.a.), P3 j (25 g OST + 50 % d.a.p.a.), P4 (5 kg manure + 50 % d a.p.a.) and P5 (d.a.p.a., 23 g Urea, 28 g SP36 and 16 g KCI). The results showed that sum couple, length and sum node of plagiotrophic stems were significantly different from 2 till 6 month after treatment, but it were not significantly different for height and stem diameter: Manure + 50 % d.a.p.a. was the best responses for all variables. EMAS + 50 % d.a.p.a. and EM 4 + 50 % d.a.p.a. had responses as good as inorganic fertilizer: Whereas, OST+ 50 % d.a.p.a. had the lowest responses for all variables.

PENGARUH CARA DAN SIKLUS PETIK TERHADAP PRODUKSI DAN MUTU PUCUK TANAMAN THE (Camellia sinensis (L.) O. Kuntze) PRODUKTIF KLON RANCA BOLANG (RB) 3. Ade Wachjar; , Supiyatno; Grace Prilensia Damayanty
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 26 No. 3 (1998): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The objective of this experiment was to evaluate the effect of plucking method and cycle on shoot production and quality tea. The experiment was conducted at Gedeh Plantation, PTPN VIII, Cianjur, West Java from February to April 1997. The experiment was arranged in Randomized Block Design with 3 replications. The First factor was plucking method, consisted of hand plucking and scissor plucking. The second factor was cycle consisted of 3 levels: 3, 6, and 9 days. The result releaved that scissor plucking gave better production and better quality than hand plucking method, 9 days plucking cycle gave better production than 3 and 6 days plucking cycle, however 3 days plucking cycle gave better quality than 6 and 9 days plucking cycle. The highest production was obtained by combinations of 3 days plucking cycle with hand plucking

PENGARUH PUPUK BORON (B) DAN SENG (Zn) TERHADAP LAYU PENTIL DAN BUAH KAKAO (Theobroma cacao L.) YANG DAPAT DIPANEN Ani Kurniawati; Ade Wachjar; Anita Th. Sinaga
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 26 No. 3 (1998): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed to study the effect of B and Zn on Cherelle Wilt and cacao production. The experiment was conducted at Rajamandala Plantation from March to September 1997. Randomized Complete Block Design was used in this experiment with two factor and three replications. The first factor was 4 levels concentration of B fertilizer : 0 ppm Borax (BO), 3350 ppm Borax (B1), 6700 ppm Borax (B2), and 10050 ppm Borax (B3). The second factor was 4 levels concentration of Zn fertilizer : 0 ppm ZnSO4 (S0), 1250 ppm ZnSO4 (S0), 2500 ppm ZnSO4 (S0), and 3750 ppm ZnSO4 (S0). The result showed that B fertilizer decrease the cumulative numbers of new cherelle, cherelle wilt, good cherelle, and cacao production. Zn fertilizer did not influence all of the parameters. Interaction of B and Zn fertilizer increase the cumulative number of new cherelle and decrease the cumulative numbers of cherelle wilt.

PENGARUH DOSIS INOKULUM CENDAWAN MIKORIZA ARBUSKULA (GIGASPORA ROSEA) DAN PUPUK NITROGEN TERHADAP PERTUMBUHAN BIBIT KOPI ROBUSTA Ade Wachjar; Yadi Setiadi; Tirsa Rachma Hastuti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 26 No. 2 (1998): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed to study the effect of Gigaspora rosea inoculant and nitrogen fertilizer on the growth of coffee Robusta seedling. Coffee seedling which were used came from seedling of hybrid variety from BP 42 and BP 358 crossing, age 1 month. Micorrhiza fungi inoculations which were used came from Gigaspora rosea species. The experiment was conducted at Sukamantri Experiment Station Bogor Agriculture University, from December 1996 to August 1997. The experiment was arranged in Randomized Block Design with three replications. The first factor was dosage of micorhiza inoculation, consisted of 0, 5, 10 and 15 g/seedling. The second factor was dosage of nitrogen consisted of 0, 1.5, 3.0 and 4.5 g/seedling. Fungi inoculation treatment in the dosage 15 g/seedling showed the highest infection percentage but can not increase the growth of coffee seedling. Fungi inoculant in the dosage 5 g/seedling gave the best growth level, showed by variety height of seedling, trunk diameter; leaves total and leaves area, shoot and root biomass, compare to the other fungi inoculation dosages. The highest level of nitrogen in leaf was found in the dosage 4.5 g/seedling. Fungi inoculation in the dosage 5 g/seedling and nitrogen fertilizer in the dosage 3 g/seedling gave the highest level of leaves area and shoot biomass, compare to the other treatment combinations.

PENGARUH JUMLAH AJIR DAN JUMLAH DAUN PADA AJIR TERHADAP PERTUMBUHAN TUNAS DAN SAAT MANJING PETIK PERTAMA PADA PEMANGKASAN AJIR TANAMAN TEH (Camellia sinensis L.) DI DATARAN TINGGI Ade Wachjar; , Supijatno; Riswan Basyri Nasution
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 23 No. 1 (1995): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed to study the effect of number of lungs and leaves at lung to growth of shoots and first time harvest at lung pruning of height land tea (Camellia sinensis). The experiment carried out at Gedeh Tea Plantation, PTPN XII, Cianjur, West Java, from December 1993 to March 1994. In this case we used tea Clone TRI 2025. The experiment was arranged in Randomized Block Design with 3 replications. The first factor, number of lungs, consisted of 3 different level : 2, 3, 4 lungs per tea. The second factor, number of leaves at lung, consisted of 3 different levels : 25, 50, and 75 leaves per lung. The Experiment showed that number of shoots and first time harvest affected by number of lungs, but number of lungs didn't affect to height of shoot, percentage of banji, wet weight shoots on tipping and first pluck production were not affected. The tea with 4 lungs had significantly greater number of shoots than 2 or 3 lungs. The earliest first harvest time was achieved by 2 lungs tea (3 to 9 days earlier), but was significant with 3 lungs tea.

PENGARUH PUPUK FOSFOR DAN KALIUM TERHADAP PERTUMBUHAN DAN HASIL BENIH KENAF (Hibiscus cannabinus L.) PADA TANAH LATOSOL Ade Wachjar; Donathus Sutidjo; Syaiful Bahri
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 22 No. 1 (1994): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The experiment was aimed to study the effects of phosphorous and potassium fertilizers on growth and seed yield of kenaf on Latosol. The experiment was carried out at Tajur Experimental Station, IPB Bogor, from January 1991 to July 1991. The seed germination test was held in the Laboratory of Seed Science and Technology IPB, Bogor. Kenaf variety Hc-48 was used in this experiment. The two factor factorial experiment was arranged in Randomized Block Design with 3 replications. The first factor was 4 levels of phosphorous fertilizer: 0, 30, 60 and 90 kg P2O5/ha. The second factor was 3 levels of potassium fertilizer: 0, 60 and 120 kg K2O/ha. Phosphorous and potassium fertilization each increased significantly plant height, stem diameter, the number of mature and total fruit per plant, seed yield per hectar: however there were no significant effect on percentage of mature fruit, number of seeds per fruit, weight of 1,000 seeds and seed germination. The dosage of phosphorous fertilizer until 90 kg P2O5/ha still increased yield linearly, otherwise the optimum dosage of potassium fertilizer was reached on 69.31 kg K2O/ha with seed yield 2,036.48 kg/ha. There was no interaction effect between P and K fertilization.

Co-Authors , Supiyatno Abdul Gani Gani Tarigan Achirul Rahman AHMAD JUNAEDI Ani Kurniawati Anita Th. Sinaga Donathus Sutidjo Dr.-Ing. Dina Rubiana Widarda Edi Santosa Efendi, Darda Fajar Dianto Grace Prilensia Damayanty Herdhata Agusta Indra Mario Stefano Laksono Trisnantoro Lies Wahyuni Mardhikanto Luga Kadarisman Midian Romeo Siregar Moh. Faris Nofianto Nada Radilla Naelatur Rohmah Ninin Yunike Nur Khayati Pangeran Teguh Anugrah Ratih Sulistianingrum Rene Ugroseno Riswan Basyri Nasution Sofyan Zaman Sudarsono Supijatno Tirsa Rachma Hastuti Yadi Setiadi Yunna Ega Ash Yokawati

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