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I Komang Damar Jaya
Fakultas Pertanian Universitas Mataram
Agriculture, Biological Sciences & Forestry

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PENGARUH PEMANGKASAN CABANG TERHADAP HASIL TANAMAN BROKOLI (Brassica oleracea L. var. italica) DI DATARAN RENDAH I Komang Damar Jaya
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

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Abstract

ABSTRAK Satu percobaan yang bertujuan untuk mempelajari pengaruh pemangkasan cabang terhadap hasil tanaman brokoli sudah dilaksanakan di dataran rendah pulau Lombok. Lokasi percobaan terletak di Kecamatan Narmada, Kabupaten Lombok Barat (08o31’S and 116o13’T) pada ketinggian tempat 125 m di atas permukaan laut. Ada lima perlakuan yang diuji, yaitu: (A) kontrol, tanpa pemangkasan cabang, (B) pemangkasan cabang 25%, (C) pemangkasan cabang 50%, (D) pemangkasan cabang 75% dan (D) pemangkasan cabang 100%. Pemangkasan cabang dilakukan pada saat tanaman menginisiasi bunga. Semua perlakuan memiliki tiga ulangan dan dirancang dengan rancangan acak kelompok. Data hasil pengamatan dianalisis menggunakan analisis keragaman dilanjutkan pembandingan kontras ortogonal. Analisis pertumbuhan tanaman berdasarkan biomassa dan luas daun dilakukan dengan menggunakan prosedur yang sudah baku. Hasil penelitian menunjukkan bahwa pemangkasan mempercepat umur panen dan meningkatkan hasil brokoli yang dicerminkan lewat berat dan diameter bunga. Semakin tinggi tingkat pemangkasan, semakin tinggi hasil tanaman brokoli. ABSTRACT An experiment aimed at studying the effects of side shoots removal on yield of broccoli was done on the lowland of Lombok. The experimental site was situated in distric of Narmada, West Lombok (08o31’S and 116o13’E) at 125 m above sea level. There were five treatments tested, namely: (A) control, without side shoots removal, (B) 25% of side shoots removal, (C) 50% of side shoots removal, (D) 75% of side shoots removal and (E) 100% of side shoots removal. The side shoots removal was done at the head initiation phase. All the treatments had three replications and were arranged in a randomized block design. Data were analysed using analysis of variance continued with one degree of freedom analysis. Growth analysis based on dry matter and leaf area was done using the standard growth analysis methods. Results of the experiment show that the side shoots removal hastened harvest date and increased head weight and diameter of broccoli. The higher level of side shoots removal, the higher yield of broccoli.
MORPHOLOGY AND PHYSIOLOGY OF PITAYA AND IT FUTURE PROSPECTS IN INDONESIA I Komang Damar Jaya
CROP AGRO, Scientific Journal of Agronomy Vol 3 No 1 (2010): Jurnal Crop Agro
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRACT Pitaya or known as dragon fruit (Hylocereus spp.) is a fleshy fruit of climbing cacti, originated from America tropics. In Indonesia, this fruit is relatively new but has already got a good place and good price in the markets. The three most common pitaya species available in Indonesia are red skin with white flesh (Hylocereus undatus Haw. Britton&Rose), red skin with red flesh (Hylocereus sp.) and red skin with strong red flesh (Hylocereus polyrhizus Webb. Britton&Rose). Other two species available in small quantity are red skin with red-purple flesh (Hylocereus costaricencis Web. Britton&Rose) and yellow pitaya (Selenicereus megalanthus A. Berger Riccob). On the island of Lombok, pitaya plantations were first established in 2006 and the first production was in 2008. Cultural practices are very basic and some areas, such as stand (support systems), pruning, and fertilizer, pest, as well as disease managements need some improvements. Physiology, flowering behaviour, pollination, and fruit growth and development of pitaya are discussed in this paper. ABSTRAK Pitaya atau banyak dikenal dengan nama buah naga (Hylocereus spp.) adalah buah berdaging segar dari kaktus merambat yang berasal dari benua Amerika tropik. Di Indonesia, buah ini relatif baru dan sudah mendapatkan tempat dan harga yang baik di pasaran. Tiga spesies buah naga yang umum terdapat di Indonesia adalah buah naga merah dengan daging buah putih (Hylocereus undatus Haw. Britton&Rose), buah naga kulit merah dengan daging buah merah (Hylocereus sp.) dan kulit merah dengan daging buah sangat merah (Hylocereus polyhirzus Web. Britton&Rose). Dua spesies lainnya yang dijumpai dalam jumlah yang relatif sedikit adalah buah naga kulit merah dengan daging buah merah keunguan (Hylocereus costaricencis Web. Britton&Rose) dan buah naga kuning (Selenicerius megalanthus A. Berger Riccob). Di pulau Lombok, kebun-kebun buah naga pertama kali dijumpai sekitar tahun 2006 dan produksi pertama pada tahun 2008. Teknik budidaya yang diterapkan sangat sederhana sehingga dalam beberapa hal, seperti tiang penyangga, pemangkasan, pemupukan serta pengelolaan hama dan penyakit perlu dilakukan perbaikan. Fisiologi, perilaku pembungaan, penyerbukan, pertumbuhan dan perkembangan buah tanaman buah naga dibahas dalam tulisan ini.
EFEKTIVITAS PUPUK PETROBIO DAN NPK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KOL BUNGA (Brassica oleracea var. botrytis L.) Muhammad Suryadi; Mulyati Mulyati; I Komang Damar Jaya
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 (543.87 KB) | DOI: 10.29303/caj.v12i01.260

Abstract

ABSTRAK Salah satu cara untuk meningkatkan produktivitas lahan dan produksi tanaman adalah dengan mengaplikasikan pupuk hayati dan pupuk anorganik. Penelitian ini bertujuan mempelajari efektivitas dari pemberian pupuk hayati Petrobio dan pupuk anorganik NPK terhadap pertumbuhan dan hasil tanaman kol bunga (Brassica oleraceea var. botrytis L.). Satu percobaan lapang dilaksanakan dari bulan April sampai dengan Juni 2017 di Desa Perian, Kecamatan Montong Gading, Kabupaten Lombok Timur, Nusa Tenggara Barat. Perlakuan yang diuji terdiri atas dua faktor, yaitu faktor pupuk Petrobio dan faktor dosis pupuk NPK. Pupuk Petrobio (P) terdiri atas tiga aras yaitu: p0= 0 kg , p1= 30 kg , p2= 60 kg dan faktor kedua, dosis pupuk NPK (K), terdiri atas dua aras yaitu: k1= 150 kg , k2= 300 kg . Rancangan percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan pola faktorial 3x2, masing-masing perlakuan diulangi 3 kali sehingga didapat 18 unit perlakuan. Hasil penelitian menunjukkan bahwa efektivitas Petrobio meningkat dengan meningkatnya dosis dibarengi dengan dosis pupuk NPKyang tinggi. Hasil terbaik didapat dari interaksi antara dosis Petrobio 60 kg dan NPK 300 kg yang menghasilkan rerata tertinggi pada berat berangkasan basah. ABSTRACT One of the ways to improve land and crop productivity is by applying biofertilizer and inorganic fertilizer. The aim of this research was to study effectivity of biofertilizer of Petrobio and inorganic fertilizer of NPK applications on growth and yield of cauliflower (Brassica oleraceea var. botrytis L.). One experiment was conducted from April to July 2017 in Perian village, sub-district of Montong Gading, East Lombok, Nusa Tenggara Barat. Treatments tested consisted of two factors, Petrobio fertilizer and NPK fertilizer. Petrobio fertilizer (P) consisted of three levels, namely: p0= 0 kg , p1= 30 kg , p2= 60 kg and the second factor, NPK fertilizer dosage, consisted of two levels, k1= 150 kg and k2= 300 kg . The treatments were arranged in a 3 x 2 factorial using Randomized Block Design with three replications. All together there were 18 experimental units tested. The results of the experiment showed that Petrobio effectivity increased with the increased of dosage following a high dosage of NPK fertilizer. The best result was achieved in an interaction of Petrobio 60 kg and NPK 300 kg that resulted in the highest of fresh weight of the crop biomass.
Co-Authors Muhammad Suryadi Mulyati Mulyati