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The Determination of Phosphor Status in Leaf Tissues to Make a Fertilizer Recommendation and Predict Mangosteen Yield Kurniadinata, Odit F.; Poerwanto, Roedhy; Susila, Anas D.
Journal of Tropical Horticulture Vol 1, No 1 (2018): October 2018
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1435.41 KB) | DOI: 10.33089/jthort.v1i1.5

Abstract

Mangosteen (GarciniamangostanaL.) knows as one of the most delicious fruit in the word, it’s call as “Queen of fruits”. The problems in mangosteen culture are low productivity and low fruit quality due to less developed technical culture, especially on fertilizer. There is a little information available on mangosteen fertilizer recommendation standards based on scientific experiment.Phosphor fertilizer increased growth especially in the generative stage of mangosteen. Phosphor increases the number of flowers and fruits set. It also decreases the number of flowers and fruits drop, with a linear response. It indicates mangosteen trees absorb phosphor to increase the vegetative growth and support production. Fertilizers increase phosphor concentrations in leaf tissues. Leaf tissues analyses showed the status of phosphor status, This status has a correlation to the yield. The higher the nutrients concentration in the leaf tissues, the higher the mangosteens yield in the next harvest
Pengaruh Kandungan P dan K Tanah terhadap Pertumbuhan dan Hasil Tanaman Tomat (Lycopersicon esculentum) pada Tanah Andisol Adji, Ibnu Surastyo; Susila, Anas D; Purnamawati, Heni
Buletin Agrohorti Vol. 12 No. 3 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i3.54543

Abstract

Tomat merupakan komoditas hortikultura yang banyak dibudidayakan dan dimanfaatkan di Indonesia. Produktivitas tomat dapat ditingkatkan dengan pendekatan teknologi budidaya seperti menggunakan teknologi irigasi dan pemupukan yang presisi. Penelitian bertujuan mengevaluasi pertumbuhan dan hasil tanaman tomat pada berbagai tingkat ketersediaan unsur hara P dan K di dalam tanah andisol asal Garut. Penelitian ini dilaksanakan di rumah plastik kebun percobaan tajur PKHT IPB menggunakan rancangan kelompok lengkap teracak (RKLT) dengan satu faktor berupa status hara (rendah, sedang, dan tinggi) pada unsur hara P dan K secara terpisah berdasarkan hasil uji cepat perangkat uji tanah kering (PUTK). Hasil penelitian menunjukkan bahwa status hara P tanah berpengaruh pada pertumbuhan tanaman, yaitu pada bobot kering tajuk, bobot kering akar, dan bobot kering total. Status hara K tanah nyata berpengaruh pada tinggi tanaman, bobot biomassa basah, bobot kering tajuk, bobot kering akar, bobot kering total, diameter batang, jumlah buah, dan total bobot buah. Status hara K tinggi menunjukkan hasil total bobot buah yang paling tinggi yaitu dengan rata-rata 320.17 gram tomat per tanaman atau setara dengan 10,565 ton ha-1, sedangkan status hara P tinggi menunjukkan hasil total bobot buah yaitu dengan rata-rata 256.32 gram tomat per tanaman atau setara dengan 8,458 ton ha-1. Kata kunci: biomassa, fosfor, kalium, status hara, produktivitas
Potassium Fertilizer Application Rates for Fertigated Edamame Grown on Low-K Soils Fitri Alfiyah; Purnamawati, Heni; Purwono; Susila, Anas Dinurrohman
Journal of Tropical Crop Science Vol. 11 No. 03 (2024): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.11.03.320-328

Abstract

Edamame, a legume consumed fresh as a vegetable, is highly nutritious, particularly protein-rich, and holds significant economic value. However, its cultivation faces challenges, especially on dry land, due to water scarcity and limited nutrient availability, particularly potassium (K). This study, which investigated the impact of potassium fertilization rate on edamame cultivation, underscores the need for further research. The study utilized a single factor, potassium fertilization rate, arranged in a completely randomized block design. Potassium rates consist of 0% X, 50% X, 100% X, 150% X, and 200% X, where X represents the recommended potassium fertilization rate according to the dry soil test device (DSTD) guidelines. Each treatment was replicated five times. Data were analyzed using ANOVA at a 5% significance level, and any significant effects were further examined using orthogonal polynomial and regression analysis. The results indicated that potassium fertilizer rates did not significantly affect edamame height, pod weight per plot, and marketable yield. However, the study identified the optimal potassium fertilizer rate, which was between 83%X and 119%X, equivalent to 83–119 kg.ha⁻¹ of KCl (50–72 kg.ha⁻¹ of K₂O). This range positively increased total branch yield, productive branches, number of flowers, pod weight per plant, number of pods per plant, and plant dry weight, producing a quadratic response pattern. The study recommends further research to optimize potassium fertilizer doses based on DSTD recommendations, particularly at a low K nutrient status, to maximize marketable yields through fertigation.
Growth responses of cherry tomato plants (Solanum lycopersicum L.) under elevated temperature and different nitrogen doses Christian, Ramot; Susila, Anas Dinurrohman; Krisantini
Journal of Agrosociology and Sustainability Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jassu.v2i2.2025.1370

Abstract

Background: Cherry tomatoes are one of the horticultural crops that can potentially be cultivated with household farming systems to fulfil the food supply. The increasing global temperature caused by climate change makes growing cherry tomato plants challenging. Besides that, nitrogen efficiency in the cultivating process of cherry tomato plants is crucial. This study aims to know the growth responses of cherry tomato plants in temperature and nitrogen doses. Methods: A completely randomized design with two factors was used for this study. The first factor was the temperature (normal and high-temperature treatment). The second factor was the nitrogen doses (55 ppm, 110 ppm, and 165 ppm). Observations of growth characteristics included plant height, leaf number, stem diameter, root length, root fresh weight, root dry weight, root-shoot ratio, shoot fresh weight, shoot dry weight, plant canopy diameter, and growth index. Findings: On day 8, normal temperature was the best result for enhancing the number of leaves. Besides that, nitrogen 55 ppm was the most effective for increasing the number of leaves. Next, at day 20, normal temperature was the best result for increasing leaf number, stem diameter, root length, root fresh weight, root dry weight, shoot fresh weight, shoot dry weight, and growth index. Then, nitrogen 110 ppm + normal temperature was the most significant response of root-shoot ratio. Conclusion: Normal temperature and minimal nitrogen doses were the most effective conditions for enhancing the growth of cherry tomato plants.  Novelty/Originality of this article: This study examines cherry tomato plants' remarkable ability to grow at normal temperature and minimum nitrogen level.
Selection of the Best Method of Soil Phosphorus Test for Tomato (Solanum lycopersicum L.) on Andisols Gunawan, Endang; Susila, Anas D; Santosa, Edi; Sutandi, Atang
Buletin Agrohorti Vol. 13 No. 2 (2025): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v13i2.65362

Abstract

Determination of recommendations for phosphorus (P) based on soil tests for tomato in Andisol has not been done in Indonesia. Beginning with the making of P soil status in IPB Research Station Pasirsarongge Cianjur and followed by a correlation test in PKHT IPB greenhouse Tajur Bogor West Java, from November 2015 to April 2016. The objective was to select the best extraction method of P Andisols for tomato. This research used a single-location approach; with a randomized block design. The treatments were soil P status by application of phosphoric acid solution (H3PO4) with five rates of P : 0, ¼,X, ½X, ¾X, and X. X was the P rate of 2240 kg P ha-1 was applied to achieve maximum P concentration in the soil. H3PO4 solution was applied to the bed surface and incubated for 4 months to obtain different P nutrient statuses. A study of the Correlation test conducted in the greenhouse used the 4 month incubated soil. Analysis of soil P using five extraction methods: Bray 1 (HCl 5N), HCl 25%, Morgan Wolf (NaC2H3O2.3H2O), Mechlich (HCl 0.05N + H2SO4 0.025N) dan NH4OAc (NH4OAc, pH 7). The results showed differences in response of plant height and biomass dry weight on nutrient status of Andisols P. Quandratic response pattern was shown in tomato plant height at 7 weeks after planting and biomass dry weight. The best Andisols P extraction method for tomato is Morgan Wolf, with a correlation coefficient (r) was 0.79. Keywords: biomass, extraction method, greenhouse, H3PO4, Morgan Wolf
Analysis of the Morphology and Secondary Metabolite Content of Several Katuk (Sauropus androgynus) Accessions Hakiki, Firdha Annisa; Masruroh, Qibtiyatul; Kartika, Juang Gema; Susila, Anas Dinurrohman; Kyoung, Cheong Min; Rahmah, Yulia
Journal of Tropical Crop Science Vol. 12 No. 03 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.03.639-646

Abstract

Katuk (Sauropus androgynus) is a species valued for its nutritional and medicinal properties, as well as its potential applications in food, herbal medicine, livestock feed, and cosmetics. This study aimed to evaluate the morphological diversity and secondary metabolite profiles of four katuk accessions. Two analyses were conducted: (1) morphological characterization using cluster analysis and (2) qualitative and quantitative assessment of secondary metabolites. Cluster analysis revealed that all accessions showed high similarity with the “Paris”, an accession widely grown in West Java, Indonesia (similarity coefficient = 1.00), and moderate similarity with accessions “K1”, “K2”, “K4”, “Bastar”, and “Zanzibar” (distance coefficient = 0.68). Metabolite profiling indicated variations in compound abundance among accessions. “Ciaruteun Ilir 1” exhibited the highest vitamin E content; “Ciaruteun Ilir 2” had the highest fatty acid and phenolic content; “Pager Jangkung 1” accumulated the most flavonoids, while “Pager Jangkung 2” contained the most terpenoids and carboxylic acids. The leaves of katuk accessions in this study contains 14-17% squalene; this is an important finding for the pharmaceutical and health industries.
Chili Yields, Nutrient Use, and Water Use Efficiency under Precision Fertigation at Different Plant Density and Drip Irrigation Lines Susila, Anas Dinurrohman; Suketi, Ketty; Purnamawati, Heni; Rusdan, Risna
Journal of Tropical Crop Science Vol. 12 No. 03 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.03.594-603

Abstract

The study aimed to evaluate the effects of irrigation line number and plant density on the growth and yield of curly red chili pepper (Capsicum annuum L.) cv. Tangguh. The study was conducted from August 2023 to January 2024 at the Cikarawang Experimental Station of IPB University (6°32’56” S; 106°43’54” E; 240 m above sea level) on Ultisol characterized by severely low phosphorus (1.1 ppm) and high potassium content (66 ppm). A split-plot design within a randomized complete block design was employed, with irrigation line number (single or double drip lines per bed) as the main plot and four planting densities (26,666, 53,322, 80,000, and 106,666 plants.ha-1) as subplots. Each treatment was replicated three times, resulting in 24 plots (each 1.5 m × 10 m). Fertilizers applied included Urea (45% N), SP-36 (36% P2O5 ), cattle manure, dolomite, biofertilizers (Trichoderma spp.), and PGPR. Irrigation and fertigation were managed using the Nutrigads automatic drip system. The data collected included plant growth, yield components, nutrient use efficiency, water use efficiency, and partial factor productivity for nitrogen (N) and phosphorus (P). The results showed that the irrigation line number had no significant effect on individual plant growth parameters. However, using double lines significantly increased total fruit yield per bed and hectare, indicating its contribution to overall productivity. Conversely, the double line system reduced water use efficiency (WUE = 2.07 kg.mm-1) compared to the single line system (WUE = 3.64 kg.mm-1; P<0.0001). Higher planting densities (up to 106,666 plants.ha-1) enhanced total yield by promoting vertical growth but reduced individual plant performance, and had a positive effect on WUE, NUE, and PUE.
Determination of the Best Potassium Extraction Method for Tomato (Solanum lycopersicum L.) on Andisols Gunawan, Endang; Susila, Anas D.; Sutandi, Atang; Santosa, Edi
Jurnal Hortikultura Indonesia (JHI) Vol. 10 No. 3 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.856 KB) | DOI: 10.29244/jhi.10.3.173-181

Abstract

Penetapan rekomendasi dosis kalium (K) berdasarkan uji tanah untuk tanaman tomat pada tanah Andisol belum banyak dikaji di Indonesia. Penelitian diawali dengan pembuatan status hara K tanah di Kebun Percobaan IPB Pasirsarongge Cianjur dilanjutkan dengan uji korelasi di rumah plastik PKHT IPB Tajur Bogor pada Desember 2015 sampai Mei 2016. Tujuan penelitian adalah menetapkan metode ekstraksi K terbaik bagi tanaman tomat di tanah Andisol. Status K tanah dibuat dengan larutan kalium sulfat (K2SO4) sebesar 0, ¼X, ½X, ¾X, dan X dimana X adalah 413.4 kg K ha-1 sebagai dosis K maksimum yang ditambahkan untuk mencapai kadar K maksimum dalam larutan tanah. Larutan K2SO4 disiram merata pada bedengan tanah dan diinkubasi selama 4 bulan. Ekstraksi K tanah menggunakan 5 metode yaitu: Bray 1 (HCl 5N), HCl 25%, Morgan Wolf (NaC2H3O2.3H2O), Mechlich (HCl 0.05N + H2SO4 0.025N) dan NH4OAc (NH4OAc, pH 7). Hasil penelitian menunjukkan adanya perbedaan respon tinggi tanaman, bobot kering biomas, kandungan K tanaman terhadap tingkat status hara K tanah. Pola respon kuadratik ditunjukkan pada tinggi tanaman umur 6 dan 7 minggu setelah tanam, dan bobot kering total. Metode ekstraksi K Andisols terbaik untuk tomat adalah NH4OAc dengan nilai koefisien korelasi (r): 0.75. Kata kunci: biomas, K2SO4, metode ekstraksi, NH4Oac, status K
Penetapatan Metode Ekstraksi Fosfor dan Kalium untuk Tanaman Cabai pada Tanah Andisol Dermawan, Rahmansyah Dermawan; Anas Dinurrohman Susila; Purwono; Budi Nugroho; Sugiyanta
Jurnal Hortikultura Indonesia (JHI) Vol. 13 No. 2 (2022): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.13.2.90-96

Abstract

Penetapan metode ekstraksi P dan K-tanah di Andisol merupakan langkah awal yang penting dalam menyusun rekomendasi dosis pemupukan untuk penanaman cabai. Penelitian dilakukan di rumah plastik Kebun Penelitian PKHT IPB, Tajur Bogor pada posisi 6038’12.9”S 106049’25.2.9”E pada ketinggian 388 mdpl. Sampel tanah yang digunakan berasal dari tanah Andisol, asal Desa Cikandang, Kecamatan Cikajang, Kabupaten Garut pada posisi 7021’46.7”S 107045’13.1”E. Uji tanah dilakukan di Laboratorium Pengujian, Departemen Agronomi dan Hortikultura dan Laboratorium Kimia dan Kesuburan Tanah, Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB. Penelitian disusun berdasarkan rancangan kelompok lengkap teracak dengan 1 faktor yaitu tanah Andisol dan diulang sebanyak 5 ulangan. Parameter yang diamati adalah korelasi antara lima metode ekstraksi P dan K-tanah (Mechlich-1, Bray-1, Morgan-Wolf, Ammonium asetat, dan HCl-25%) dengan bobot kering biomassa relatif (BKR) tanaman cabai. Keeratan hubungan antara kelima metode ekstraksi dengan BKR tanaman cabai ditunjukkan oleh nilai koefisien korelasi (r). Hasil penelitian menunjukkan adanya perbedaan keeratan hubungan metode ekstraksi P dan K-tanah Andisol terhadap bobot kering relatif tanaman cabai. Metode ekstraksi Morgan-Wolf menunjukkan korelasi terbaik dalam mengekstrak P-tanah Andisol (r=0.94) sedangkan pada uji korelasi K-tanah Andisol, metode ekstraksi Ammonium asetat menunjukkan hasil terbaik (r=0.97). Metode ekstraksi Mechlich-1 dapat dijadikan metode ekstraksi alternatif untuk P dan K-tanah Andisol untuk tanaman cabai. Kata kunci: Ammonium asetat, koefisien korelasi, Morgan-Wolf, uji tanah, sayuran
Pengaruh Cekaman Air dan Interval Pemupukan Daun terhadap Pertumbuhan Tanaman Katuk (Sauropus androgynous (L.) Merr.): Effect of Water Stress and Leaf Fertilization Interval on the Growth of Katuk (Sauropus androgynous (L.) Merr.) Aris Aprilianto; Kartika, Juang Gema; Anas Dinurrohman Susila
Jurnal Hortikultura Indonesia (JHI) Vol. 14 No. 3 (2023): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jhi.14.3.133-140

Abstract

Katuk merupakan sayuran indigenous tahunan yang banyak ditanam di berbagai agroekologi. Tanaman yang mengalami cekaman air memerlukan tambahan unsur hara dalam proses pertumbuhan, yaitu dengan cara pemupukan. Penelitian bertujuan mengetahui pengaruh cekaman air dan interval pemupukan daun terhadap pertumbuhan tanaman katuk. Penelitian dilakukan pada Agustus hingga November tahun 2021 di rumah kaca Kebun Percobaan Leuwikopo, IPB Dramaga, Bogor. Rancangan percobaan yang digunakan adalah rancangan split-plot dalam rancangan kelompok lengkap teracak (RKLT) yang terdiri atas dua faktor yaitu interval pemupukan daun sebagai petak utama dan cekaman air sebagai anak petak. Interval pemupukan daun terdiri dari tiga taraf, yaitu P0 (tanpa pemupukan), P1 (2 minggu sekali), dan P2 (4 minggu sekali). Faktor cekaman air terdiri dari empat taraf, yaitu C1 (40% kapasitas lapang (KL)), C2 (60% KL), C3 (80% KL), dan C4 (100% KL). Penelitian dilakukan dengan tiga ulangan dengan 12 kombinasi perlakuan, sehingga terdapat 36 satuan percobaan. Hasil menunjukkan bahwa cekaman air tidak mempengaruhi pertumbuhan tanaman katuk hingga umur 6 Minggu Setelah Transplan (MST). Pertumbuhan tanaman yang mendapatkan pengurangan pemberian air hingga 40% kapasistas lapang masih setara dengan tanaman dengan pemberian air kapasitas lapang (100%). Interval pemupukan daun 2 dan 4 minggu sekali meningkatkan jumlah cabang, jumlah daun, dan bobot panen daun katuk. Interaksi antara cekaman air dan pemupukan daun tidak berpengaruh terhadap pertumbuhan tanaman katuk. Kata kunci: bobot panen, interval pemupukan, sayuran indigenous, stres air
Co-Authors , Amisnaipa ,, Sopiana A. HAITAMI Adji, Ibnu Surastyo Adolf P. Lonto Adolf Pieter Lontoh, Adolf Pieter Alghifari, Ahmad Fadli Alveno, Vitho Amanah, Mar'atus Sholihatul Amanda Sari Widyanti Angga Agung Gumelar Anita Maryam Aris Aprilianto Arisa Noguchi, Arisa Atang Sutandi Awang Maharijaya Badrieh, Haian Amin Budi Nugroho Chin-Hua Ma Christian, Ramot D. Wasgito Purnomo Deli, Syekh Zulfadli Arofah Dermawan, Rahmansyah Dermawan Desi Hernita Dewa Gede Wiryangga Selangga Dewa Gede Wiryangga Selangga Dhika Prita Hapsari Dian Diani Tanjung Didy Sopandie Diny Dinarti Donatila Faranso Dwi Guntoro Edi Santosa Eko Sulistyono Endang Gunawan Endang Wijayanti Faqih Udin Febrianto, Miftakhur Rizki Hidayat Fita Lita Ramadiani Fitri Alfiyah Habibi, Irfan Hakiki, Firdha Annisa Hamdani, Kiki Kusyaeri Hati, Helena A P Haveel Luthfyrakhman Haveel Luthfyrakhman Herry Suhardiyanto Hulu, Versi Putra Jaya Jatsiyah, Venti Jian Ayu Pratiwi Juang G. Kartika Juang Gema Kartika Ken Takahata, Ken Ketty Suketi Krisantini Kyoung, Cheong Min La Ode Safuan Lutfi Izhar Majesta Esa Sofian Manuel Celiz Palada Maryam, Anita Masruroh, Qibtiyatul Mathias Pratama Muhamad Syukur Munif Ghulamahdi Nani Yulianti Nicha Muslimawati Nobuo Sugiyama Nobuo Sugiyama Odit Ferry Kurniadinata Oktavia, Adea Paramyta Nila Permanasari Prathama, Mathias Purwono Purwono Purwono, Purwono Rahanita, Prima Rahmah, Yulia Rahmat Hadi Wibowo Rahmi Fauziah Raka Daniel Lihardo Sumbayak Rhoedy Poerwanto rina ekawati Risna rusdan Rizqi Utami Nugraha Roedhy Poerwanto Rykson Situmorang S Anwar Salvadore J. Locascio Sintho Wahyuning Ardie Siti Halimah Slamet Susanto Sobir Sobir Sofyan Zaman SRI HENDRASTUTI HIDAYAT SRI RAHAYU Sugiyanta Suryo Wiyono TAKAHISA MATSUOKA Tarigan, Hardi Satria Vivit F. Alviana Wibowo, Rahmat Hadi Wika Anrya Darma, Wika Anrya Willy Bayuardi Suwarno Winarso D. Widodo Wirabawana, Bartolomeus Varian Yuliharsa Yohanes Bayu Suharto Yoko Mine Yoko Mine Yudi Chadirin YULIN LESTARI Yuni Koerniawati