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INDONESIA
CROP AGRO, Scientific Journal of Agronomy
Published by Universitas Mataram
ISSN : 19788223     EISSN : 26215748     DOI : -
Core Subject : Agriculture,
Jurnal ilmiah yang diterbitkan oleh Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Mataram yang memuat tulisan berupa hasil penelitian yang terkait dengan bidang budidaya tanaman, terbit enam bulan sekali. Redaksi menerima naskah dalam bahasa Indonesia atau Inggris.
Arjuna Subject : -
Articles 209 Documents
RETENSI HARA BEBERAPA BIOCHAR DARI LIMBAH TANAMAN DAN PENGARUHNYA TERHADAP SERAPAN N,P, K TANAMAN PAGI GOGO. Sukartono Sukartono
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.969 KB) | DOI: 10.29303/caj.v12i01.247

Abstract

ABSTRACT Application of biochar to agriculture soils has been considered as means to improve soil quality and carbon sequiestration. Therefore, the understanding of chemical and physical properties of biochars is important to identify suitable use of biochar for improving soil fertility and carbon sequestration. Biochars were produced from phyrolizing five different feedstock from crops residues (rice straw- BPJ, rice husk- BPS, maize cobs- BJT, peanuts shell- BKC and soybean residues-BKE). Using muffle furnace heating under 400oC. The potential nutrients retention of those biochars in particular for NH4+, K+. Ca++, dan Mg++. was tested. througha leaching experiment established in Soil Physic laboratory at Faculty of Agriculure, University of Mataram . The physicochemical properties of biochars were likely varied among fives feedstocks. The biochars derived from soybean residues (BKE), peanut biomass (BKC) and maize cobs (BJT) contained higher mutrients (i.e. C, N, K, Ca and Mg) compared to biochars produced from rice straw (BJP) and rice husks (BPS). Total-C of BKE, BKC dan BJT were 51,73; 57,36 dan 53,53 % respecively. The variation of phyisicochemical properties from different biomass strongly related to different nutrient retention whenever the biochars are applied in soils. Biochars produced from legume crops biomass such as soybean and dan peanuts werethe highest nutrients retention, followed by maize cobsand rice straw biochars. Unde glass house test, the tree biochars namely BPS, BJT and BKE have similar effect on N,P, K uptake as well as to dry weight biomass.
Pertumbuhan dan Hasil Berbagai Varietas Kacang Tanah antara Penanaman secara Monokrop dan Bersama Padi Beras Merah pada Sistem Irigasi Aerobik Emi Iryani; Wayan WANGIYANA; Ni Wayan Dwiani Dulur
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (522.694 KB) | DOI: 10.29303/caj.v12i01.315

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ABSTRAK Penelitian ini bertujuan untuk membandingkan pertumbuhan dan hasil lima varietas kacang tanah antara penanaman secara tunggal dan bersama padi beras merah pada sistem aerobik, dengan melaksanakan percobaan penanaman di pot dalam rumah plastik. Percobaan ditata menurut Rancangan Acak Lengkap (RAL) dengan dua faktor perlakuan yang ditata secara factorial, yaitu varietas kacang tanah (Biawak, Hypoma 1, Galur G300-II, lokal Wajik dan lokal Bima) dan pola tanam (secara tunggal dan bersama padi beras merah), dan setiap kombinasi perlakuan dibuat dalam 3 ulangan. Data dianalisis dengan analisis keragaman (ANOVA) dan uji Beda Nyata Jujur (Tukey’s HSD) pada taraf nyata 5%, menggunakan program CoStat for Windows ver. 6.303. Hasil penelitian menunjukkan bahwa ada pengaruh interaksi antara pola tanam dan varietas terhadap berat berangkasan segar dan berat polong kering per rumpun, yang menunjukkan perbedaan respon antar varietas kacang tanah terhadap pola tanam. Dibandingkan dengan sistem monokrop, penanaman bersama padi signifikan menurunkan berat berangkasan segar, tetapi hanya pada varietas Hypoma-1, dan menurunkan berat polong kering, tetapi hanya pada varietas Hypoma-1 dan galur G300-II. Namun, hasil biji per rumpun secara umum tidak dipengaruhi oleh pola tanam, dan bahkan ada kecenderungan jumlah biji per rumpun lebih tinggi pada penanaman bersama padi, pada varietas Biawak dan lokal Wajik. Sebaliknya, berat 20 biji, jumlah daun dan jumlah cabang rata-rata lebih rendah, tetapi tinggi tanaman lebih tinggi, pada penanaman bersama padi dibandingkan pada sistem monokrop.
VARIASI WAKTU VERNALISASI DALAM PENINGKATAN PRODUKSI DAN VIABILITAS BIJI BAWANG MERAH Muji bptp
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.722 KB) | DOI: 10.29303/caj.v12i01.252

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ABSTRACT True Shallot Seed(TSS) is a new agricultural innovation technology as a solution to overcome the problems of shallot production in Indonesia. Many factors influence the successful of TSS production such as climate, availability of pollinator insects, quality of shallot bulbs used and various other technological components in spurring the formation of flowers and true seed yield. Vernalisation is one of the important components in the successful production of TSS. This research aim to observe growth performance and productivity of shallot growing from bulbs and viability of true seed yield based on different vernalisation period. The research consists of two stages, the first phase investigate growth variability and TSS yield by testing 4 treatments with 3 replications. The treatments were: 1) without vernalisation, 2)2 weeks vernalisation period, 3) 4 weeks vernalisation period and 4) 6 weeks vernalisation period.The experiment was conducted in East Lombok - Indonesia from May to November 2016, followed by the second phase from December 2016 to January 2017 by testing the viability of TSS produced from first phase. The results showed that 4 weeks vernalisation period gave the best growth performance as indicated by the fastest flower occurring time, largest flower diameter, and highest number of seed yield. In addition, TSS from 4 weeks vernalisation period showed the highest viability in the field.
APLIKASI PUPUK KADANG AYAM DAN PUPUK HAYATI EKSTRAGEN SEBAGAI UPAYA PENGEMBANGAN TANAMAN OKRA (Abelmoschus Esculentus) SECARA ORGANIK Muliadi Muliadi
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (478.066 KB) | DOI: 10.29303/caj.v12i01.249

Abstract

mungdsainsone@gmail.com ABSTRAK Penelitian ini bertujuan untuk mengetahui dosis pupuk kandang ayam dan dosis pupuk hayati ekstragen yang tepat sebagai upaya pengembangan tanaman okra (Abelmoschus esculentus) secara organik. Percobaan dilaksanakan mulai Maret sampai dengan Juni 2018 di lahan pertanian desa Pijot Kecamatan Keruak Kabupaten Lombok Timur. Metode yang digunakan adalah metode ekperimental dengan percobaan di lapangan. Rancangan yang digunakan adalah rancangan acak kelompok dengan 3 ulangan. Faktor pertama adalah Faktor kedua adalah pupuk kandang ayam dengan 4 taraf dosis yaitu 0 kg/plot, 7,5 kg/plot, 9,5 kg/plot, 11,5 kg/plot. pupuk hayati ekstragen dengan 4 taraf dosis yaitu 0 ml/tanaman, 9,3 ml/tanaman, 13,8 ml.tanaman, 18,6 ml/tanaman. Terdapat 16 kombinasi perlakuan dan 48 petak percobaan. Data dianalisis menggunakan analisis sidik ragam, apabila berbeda nyata, maka dilanjutkan dengan uji BNJ pada taraf 5%. Hasil penelitian menunjukkan bahwa pupuk kandang ayam berpengaruh nyata terhadap pertumbuhan vegetatif terutama pada laju pertambahan diameter batang tanaman dan pertumbuhan generatif. Pupuk hayati ekstragen berpengaruh tidak nyata terhadap pertumbuhan vegetatif dan generatif tanaman. Disarankan untuk melakukan penelitian pada dosis pupuk kandang ayam untuk budidaya okra adalah 9,5 kg/plot atau sama dengan 25 ton/ha karena berbeda nyata dengan dosis 0 kg/plot, namun berbeda tidak nyata dengan dosis 7,5 kg/plot dan 11,5 kg/plot pada penelitian ini, sedangkan dosis pupuk hayati ekstragen disarankan melakukan penelitian lebih lanjut karena tidak adanya pengaruh signifikan terhadap pertumbuhan vegetatif dan generatif tanaman. Kata kunci: Okra, pupuk hayati ekstragen, pupuk kandang ayam
PENGARUH CEKAMAN KEKERINGAN TERHADAP PERTUMBUHAN DAN HASIL BEBERAPA GENOTIP TANAMAN OKRA (Abelmoschus esculentus L.) husnul khotimah
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.506 KB) | DOI: 10.29303/caj.v12i01.253

Abstract

ABSTRACT Okra (Abelmoschus esculentus L.) is one of horticulture crop that contain high nutrition. Growth and yield of this crop determined by genetic and environment factor especially water. The objective of this research was to know the effect of drought stress toward growth and yield of several okra genetypes. This research was undertaken in plastic house, Batu Kuta village Sub regency of Narmada using Split Plot design with drought stress as main plot and genotype as sub plot. Main plot consist of drought stress and without drought stress. Sub plot consist of Dompu genotype, Hybrid genotype, Red genotype and Long genotype. Every treatment combination was replicated three times. Result of this study showed that interaction between treatment and genotype of okra effected on canopy wet weight, canopy dry weight, plant height at 60 days after planting, number of leaf at 30, 60 and 90 days after planting, number of flower becoming fruit and number of good fruit. Treatment of okra genotype effected on almost all parameters except wet weight of root, dry weight of root and diameter of stem 30 days after planting. While, treatment of drought stress only effected on canopy wet weight and plant height at 60 and 90 days after planting. Long genotype had the best growth on the condition of drought. Red genotype had the best number of good fruit on the condition of drought stress and without drought stress.
UJI TEKNIK PENGENDALIAN HAMA LALAT BIBIT (Ophiomyia phaseoli Try.) PADA TANAMAN KEDELAI (Glycine Max L.) Uswatun Hasanah; Tarmizi Tarmizi; Meidiwarman Meidiwarman
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.745 KB) | DOI: 10.29303/caj.v12i01.215

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ABSTRAK Penelitian ini bertujuan untuk membandingkan teknik pengendalian yang lebih baik, guna mengurangi serangan hama Lalat Bibit Ophiomyia phaseoli Try. pada tanaman kedelai. Penelitian ini menggunakan metode eksperimental. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 4 perlakuan, setiap perlakuan diulang sebanyak 3 kali sehingga didapatkan 12 petak perlakuan. Perlakuan-perlakuan yang digunakan adalah K0 (Tanpa pelakuan), K1 (Penutup tanah), K2 (Seed treatment), K3 (Pupuk Hayati). Data hasil pengamatan dianalisis menggunakan analisis of variance (Anova) pada taraf 5%. Apabila siginificant (berbeda nyata) dilakukan uji lanjut menggunakan Uji Beda Nyata Jujur (BNJ) pada taraf 5%. Selanjutnya dilakukan regresi linier sederhana menggunakan Minitab 17. Hasil penelitian menunjukkan bahwa teknik pengendalian menggunakan seed treatment berpengaruh nyata terhadap populasi hama dan tingkat kerusakan tanaman. Populasi hama lalat bibit O. phaseoli Try. berpengaruh nyata terhadap tingkat kerusakan tanaman. ABSTRACT The aim of this study was to compare better control techniquesin order to reduce pest attacks of bean fly Ophiomyia phaseoli Try. on soybean plants. This study used an experimental method. The experimental design used was Randomized Complete Block Design (RCBD) with 4 treatments, each treatment was repeated 3 times, so that 12 treatment plots were obtained. The treatments used are K0 (without treatment), K1 (ground cover), K2 (seed treatment), K3 (biological fertilizer). Result of data observation were analyzed using analysis of variance (ANOVA) at the level of 5%. Honestly Significant Difference (HSD) Test at the level of 5% was carried out on significant results (significantly different). Furthermore, simple linear regression was performed using Minitab 17. The results of the study showed that the technical control using seed treatment had a significant effect on pest populations and plant attack rates. Population of bean fly O. phaseoli Try. were significantly affect the level of attack to plants.
hr KETERSEDIAAN FOSFOR PADA LAHAN PADI SAWAH BERDASARKAN INTENSITAS PENGGUNAANNYA DI KECAMATAN GERUNG KABUPATEN LOMBOK BARAT Habiburrahman Habiburrahman Habiburrahman
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 01 (2019): Jurnal Crop Agro Januari 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.235 KB) | DOI: 10.29303/caj.v12i01.251

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This research was aimed to know the phosphorus availability in rice fields based on use intensity in Sub District of Gerung West Lombok Regency. The research conducted from February 2018 until April 2018 with 3 location criteria (Less Intensive, Intensive, Very Intensive). Method which used is descriptive method with survey technical. The results showed, the phosphorus availability on intensive rice field in all criteria location is range from high to very high containing. The land use with very intensive (3 times plant) indicate very high accumulation of nutrient P with the range 85% of the land area was researched. Correlation of using SP36/TSP with availability of P in each location criteria have a positive relationship and which have a very strong correlation ( r = 0.994) that is in Less Intensive location. Keywords : Phosphorus Availability, Intensive Rice Fields
RADIOSENSITIVITAS BAWANG MERAH (Allium ascalonicum L.) LOKAL SULAWESI TENGGARA TERHADAP IRADIASI GAMMA (THE RADIOSENSITIVITY OF SOUTHEAST SULAWESI LOCAL ONION TO GAMMA IRRADIATION) ni wayan sri suliartini *1); Asniah *2); Wa Ode Nuraida*2)
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 2 (2019): Jurnal Crop Agro Juli 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (594.712 KB) | DOI: 10.29303/caj.v12i2.316

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ABSTRACT Onion is one of the vegetable commodities that have significance for the community, both from economic value and nutritional content. In the last decade the demand for onion for consumption and for domestic seeds has increased, so that Indonesia must import to meet those needs. The production and quality of onion shall always be enhanced through intensification and extensification. Induction of mutation as one of the methods of plant breeding to obtain genetic diversity is expected to meet the expectations in increased onion production.The purpose of this research was to find out radiosensitivity and the effect of various dosages of gamma on onion (Allium ascalonicum L.) growing. The research materials were two Southeast Sulawesi onion landraces namely Landrace Tomia and Landrace Buton. Gamma irradiation was conducted at the Center for Application Technology Isotope and Radiation, National Nuclear Agency, Jakarta. Onion bulbs were irradiated by 60Co gamma at dosages of 2, 4,6, and 8 Gy. It was found that the landrace Buton was more sensitive than the landrace Tomia. Gamma irradiation increases plant height, number of leaves mutant landace Tomida except dose 8 Gy and increases number of tillers at all doses of gamma irradiation. Gamma irradiation increases plant height, number of leaves and number of tillers at all treatment doses. All of the observed variables underwent increases after the gamma irradiation except for a dose of 8 Gy on Landrace Tomia. Based on the observed data, the results of this research showed: (1) the Buton was more sensitive than the Tomia; (2) the dosages of irradiation affect the sensitivity of the plant. Keywords: Onion, gamma rays, radiosensitivity, Southeast Sulawesi ABSTRAK Bawang merah merupakan salah satu komoditas sayuran yang mempunyai arti penting bagi masyarakat, baik dilihat dari nilai ekonomis maupun kandungan gizi. Dalam dekade terakhir ini permintaan akan bawang merah untuk konsumsi dan untuk bibit dalam negeri mengalami peningkatan, sehingga Indonesia harus mengimpor untuk memenuhi kebutuhan tersebut. Produksi dan mutu hasil bawang merah harus senantiasa ditingkatkan melalui intensifikasi dan ekstensifikasi. Induksi mutasi sebagai salah satu metode pemuliaan tanaman untuk memperoleh keragaman genetik diharapkan dapat memenuhi harapan dalam peningkatan produksi bawang merah. Penelitian bertujuan untuk mengetahui radiosensitivitas dan pengaruh iradiasi gamma terhadap pertumbuhan dua landrace bawang merah Sulawesi Tenggara. Bahan penelitian yaitu dua landrace bawang merah Sulawesi Tenggara yaitu Landrace Tomia dan Landrace Buton. Iradiasi gamma dilakukan dengan 60Co di Pusat Aplikasi Isotop dan Radioaktif Badan Tenaga Atom Nasional (PATIR BATAN), Pasar Jumat Jakarta. Bawang merah diradiasi pada dosis 2,4,6 dan 8 Gy. Hasil penelitian menunjukkan bahwa Landrace Buton lebih sensitif terhadap iradiasi gamma dibandingkan dengan Landrace Tomia. Kata kunci: bawang merah,sinar gamma, radiosensitivitas, Sulawesi Tenggara
Uji Predasi Tungau Predator (Neoseulus longspnosus) Terhadap Tungau Hama (Tetranychus sp.) Yang Berasosiasi Pada Ekosistem Tanaman Kentang (Solanum tuberosum. Linn). Saeful Hadi; M. Sarjan; Tarmizi Tarmizi
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 2 (2019): Jurnal Crop Agro Juli 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (598.604 KB) | DOI: 10.29303/caj.v12i2.245

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ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh kepadatan mangsa terhadap kemampuan mempredasi dari tungau Predator Neoseiuluslongispinosus terhadap Tungau Hama Tetranychus sp. yang berasosiasi pada ekosistem tanamankentang (Solanum tuberosum Linn.). Penelitian ini telah dilaksanakan dari bulan Junisampai Agustus 2018 pada lahan budidaya kentangDesa Beririjarak,Kecamatan Wanasaba, Kabupaten Lombok Timur dan Laboratorum Proteksi Tanaman Fakultas Pertanian Universitas Mataram. Metode yang digunakan dalam penelitian ini adalah metode eksperimental RAL dengan pengambilan sampel di lapangan dan dilakukan pengujian di laboratorium. Hasil pengujian kemampuanmemangsa menunjukkan bahwapenambahan kepadatan mangsa tidak berpengaruh terhadap pemangsaan predatorNeoseoulusLongispinosus. ABSTRACK This study aims to determine the effect of prey on the prediction ability of Neoseiulus longispinosus mites against Tetranychus sp. which is associated with the plant ecosystem of potatoes (Solanum tuberosum Linn.). This research has been carried out from June to August 2018 in the field of cultivation of the Beririjarak Village, Wanasaba District, East Lombok Regency and the Village Protection Laboratory of the Faculty of Agriculture, Mataram. The method used in this study is the experimental RAL method with sampling in the field and testing in the laboratory. The results of the ability show that the amount of density is not the same as the predator Neoseoulus Longispinosus.
PERTUMBUHAN DAN HASIL TANAMAN PADI VAR. CIHERANG DENGAN TEKNIK BUDIDAYA “SRI (SYSTEM OF RICE INTENSIFICATION)” PADA BERBAGAI UMUR DAN JUMLAH BIBIT PER LUBANG TANAM Wayan Wangiyana1; Zapril Laiwan2; Laiwan1 .
CROP AGRO, Scientific Journal of Agronomy Vol 2 No 1 (2009): Jurnal Crop Agro
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (511.584 KB)

Abstract

ABSTRAK Perbedaan pelaksanaan yang paling prinsip antara teknik SRI dan konvensional dalam budidaya padi adalah pengairan yang intermittent selama fase vegetatif dan mengutamakan pupuk organik, di samping anjuran penanaman bibit muda dan tunggal pada SRI. Penelitian ini ditujukan untuk menguji pengaruh umur dan jumlah bibit per lubang tanam terhadap hasil padi pada teknik budidaya SRI, dengan melakukan percobaan pot yang ditempatkan di halaman terbuka dan ditata menurut Rancangan Acak Lengkap dengan 3 ulangan dan 2 faktor perlakuan, yaitu umur bibit pindah tanam (5, 10 atau 15 HSS) dan jumlah bibit per lubang tanam (1, 2 atau 3 bibit). Percobaan dilaksanakan di desa Gerung (Lombok Barat) pada bulan Juli sampai Nopember 2006, menggunakan padi (Oryza sativa L.) varietas Ciherang. Hasil penelitian menunjukkan bahwa tidak terdapat interaksi yang nyata antara kedua faktor perlakuan, tetapi faktor umur bibit memberikan lebih banyak pengaruh nyata, yaitu terhadap pertumbuhan jumlah daun, tinggi tanaman, jumlah anakan, berat jerami kering, jumlah anakan produktif dan persentase gabah hampa, dibandingkan dengan jumlah bibit per lubang tanam, yaitu hanya terhadap pertumbuhan jumlah daun dan anakan. Persentase gabah hampa semakin rendah dengan semakin muda umur bibit pindah tanam, terutama kalau menggunakan penanaman bibit tunggal. Walaupun tidak signifikan, ada kecenderungan bahwa hasil gabah tertinggi diperoleh pada kombinasi perlakuan umur bibit 10 hari dengan penanaman 2 atau 3 bibit per lubang tanam, yang juga didukung oleh adanya kecenderungan jumlah anakan produktif yang tinggi, terutama dengan 3 bibit per lubang tanam. Namun perlu dicarikan solusi bagaimana mengurangi persentase gabah hampa dan/atau meningkatkan indeks panen. ABSTRACT The main differences in the implementation of SRI versus conventional techniques of rice culture are the application of intermittent irrigation during vegetative stages and the importance of manures besides transplanting of very young and single seedlings in SRI practice. This research was aimed to examine the effects of age and number of seedlings per hill at transplanting on yield of rice under SRI technique, by conducting a pot experiment on an open field, designed based on Completely Randomized Design with three replicates and two factorial treatment factors, i.e. seedling ages at transplanting (5, 10 or 15 days after sowing) and number of seedlings per hill (1, 2 or 3 seedlings). The experiment was carried out at Gerung village (West Lombok) from July to November 2006, using “Ciherang” variety of rice (Oryza sativa L.). The results indicated that there was no significant interaction between the two treatment factors, but seedling age factor showed significant effects on more observation variables, including growth rates of leaf number, plant height, and tiller number, and dry straw weight, productive tillers and percentage of unfilled grains, when compared with the treatment factor of seedling number per hill, which showed significant effects only on growth rate of leaf number and tiller number. Percentages of unfilled grains were lower when younger seedlings were transplanted, especially when transplanting single seedlings. Although it was not significant, there was a tendency that highest yield could be obtained from the treatment combination of transplanting 2 or 3 seedlings of ten-days old, which was supported by a tendency to obtain the highest number of productive tillers, especially with transplantation of 3 seedlings per hill. However, more researches need to be conducted to find out how to reduce percentage of unfilled grains and/or to increase harvest index.