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Journal : Tropical Plantation Journal

Effect of Dolomite and NPK on The Growth and Yield of off-Season Shallots Iswahyudi, Iswahyudi; Haryanto, Eddy Tri; Supriyono, Supriyono; Al-batul, Fitrotunnisa; Samanhudi, Samanhudi; Irawati, Erni; Rahayu, Muji; Purwanto, Edi
Tropical Plantation Journal Vol 5, No 1 (2026): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v5i1.74

Abstract

Shallot is a high-value horticultural commodity. Its productivity often declines due to suboptimal soil conditions, such as low pH and imbalanced nutrient availability, especially when cultivated off-season. This study aimed to determine the optimal combination of dolomite and NPK (Nitrogen, Phosphorus, Potassium) fertilizer for the growth and yield of shallot cultivated in the off-season. The research was conducted in Ngringo Village, Jaten District, Karanganyar Regency from February-April 2025. The method used was a factorial Completely Randomized Design (CRD) with two factors and three replications. The first factor was dolomite doses (0; 2000; and 4000 kg.ha-1) and NPK fertilizer doses (250; 375; and 500 kg.ha-1). Observed parameters were plant height, number of leaves, fresh and dry biomass weight, fresh and dry bulb weight, number of bulbs per plant, and bulb diameter. Data were analyzed by analysis of variance (ANOVA) at a 95% significance level and continued with Duncan’s Multiple Range Test (DMRT) with 95% significance level when significant differences were found. The results showed no significant interaction between dolomite and NPK fertilizer on shallot growth and yield. Dolomite at 2000 kg.ha-1 significantly increased the number of leaves, while NPK fertilizer had no significant effect. However, 250 kg.ha-1 of NPK fertilizer produced similar results to higher doses, indicating potential fertilizer efficiency. Environmental conditions such as high humidity and low light intensity likely influenced treatment effectiveness.
Co-Authors A. M. Adam, A. M. Aceng Hidayat Achirda, Nur Achmad Arifulloh, Achmad Adi Yeremia Mamahit Ahmad Khotibul Umam, Ahmad Khotibul Ainul Mardiyah, Ainul Al-batul, Fitrotunnisa Alfarezi, M. Alim, Dimas Syarif Almeida, Maria Alzami, Farrikh Amalia Rahma Ambar Wibawa, Teguh Hafidz Anderson Ndolu Andrian, Bayu Angga Sukma Permana Anis Irawan Anwar Anisa, Putri Anwar, Yusrijal Apriani, Rezky Ardian, Zhunita Putri Arief, Maryam Jamila Arifian, Hanggara Ariyanto, Gradian Pratama Asih Rohmani, Asih Asnawi, Naupal Asri, Cik Putri Aulia Rahman, Luthfi Aulia, Syifa Auliq, Muhammad A'an Ayu, Welinda Dyah Azmi, Fatur Rahman Bambang Pramudya Noorachmat, Bambang Pramudya Bambang Semedi Baso Didik Hikmawan Bimo Aksono Bobby Kurnia Putrawan Bone, Mahfuzun Butar, Sabungan Butar- Butar-Butar, Sabungan Christia, Verra Ria Cici Indriani Dalimunthe CITA ROSITA S. PRAKOESWA Damat, Damat Daniel Happy Putra Darminto, Dwi Prastowo DINAR ADRIATY Dwi Agustina Dwi Handayani Dwi Novri Supriatiningrum Dwi Puji Prabowo, Dwi Puji Dwici Y Manik, Nonida Eddy Tri Haryanto, Eddy Tri Edi Purwanto Edyanto Edza Aria Wikurendra Emiel Salim Siregar Endah Budi Permana Putri Erna Sariana ERNAWITA ERNAWITA Erni Irawati Erwin Samsul Fahmi Amiq Fahrizal, Erlan Fais, Ahmad Nur Faizah, Annisa Nu Fajarrinnur, Adha Farida Tabri Faridi, Ahmad Farrah, Harra Ismi Fauzi, Novyanda Fauzia, Arisna Febriani, Alia Febrina, Lizma Fitriana Fitriana Fitriana, Wulan Friska Jifanti Garfansa, Marchel Putra Haisoo, Musa Hakim, Amanour Haq, Raka Ainul Harahap, Burhanuddin Harun Al Azies Hattapradit, Faron Helmi Helmi Heri, Mochamad Herman Herman Hermansyah, Aldy Hindarto, Djarot Husnia, Fadillah I Gusti Ayu Putri Kartika, I Gusti Ayu Ibrahim, Arsyik indra, siti balqies Indri Kusharyanti INDROPO AGUSNI Insiyah, Zulfa Raodhotul Irawan, Dudi Iriawan, Hermanu Islamudin Ahmad Ismail Ismail Isti Daruwati Izzah, Amtaya Akhlaqul Jimmy Setiawan Juanda , Boy Riza Juanda, Ilham Junaidin, Junaidin Karnegi, Dale Kartini Kartini Kencana, Ulya Khoiriah, Umi Kurniawan, Ahmad L, Chelsea Aliffa Lestari, Seftya Ayu Lili Zalizar Linda Astari, Linda M. Arifuddin, M. M. dali amiruddin, M. dali M. Yulianto Listiawan Malau, Maya Manalu, Immanuel Lando Manuaba, Ida Bagus Gede Fajar Maretalinia, Maretalinia Marnita, Yenni Mauidzoh, Imroah al Maulia , Tasya Megantara, Rama Aria Mimin Ratna Suminar Moh. Fauzan Mohammad Shoimus Sholeh Mohd Ghazali, Mohd Sabri Monika, Rika Muhammad Dali Amiruddin Muhammad Faisal Muhammad Naufal, Muhammad Muhayyadah, Kusrotul Muji Rahayu Mulia, Mimin Indriani Mulyani, Cut Nasrullah, Amanda Amalia Navia, Zidni Ilman Netty Sukmawati, Netty Novida Dwici Yuanri Manik Nuraida, Nisa Nuranjani, Febby Nurhalimah Nurhalimah Nurlaila Z. Nurraya, Nurraya Pardede, Harold Pasaribu, Damaria Patintingan, Rima Pergiwati, Dewi Prabowo, Galih Akbar Prabowo, Wisnu Cahyo Prakoeswa, Cita Rosita Priyananda, Dhiaz Ari Purwani, Sagung Putri ME Purwaningtyas, Desiani Rizki Puspita, Esmeralda Dwi Putri, Imawati E Putri, Imawati Eka Putri, Selvi Wahyuni R. Eko Indrajit rachmah diana putri, rachmah diana Rachmawati Rachmawati Rahayu Relawati Rahmatari, Bandaru Rahmawatie, Rahmawatie Ramadhan Rakhmat Sani RATNA WAHYUNI Ridha, Risky Rija'i, Hifdzur Rashif RIKI RIKI, RIKI Riza Juanda, Boy Rizki Amalia, Danti Rohela, Rohela Rolan Rusli Rosmaiti, Rosmaiti Rusman, Arman Sabad Nugroho, Samuel Safruddin Adam, Safruddin Safruddin Amin Salehuddin, Salehuddin Salim, Hotimah Masdan Samanhudi Samanhudi Santoso, Handri Sara, Fatia Sari, Laila Eka Sari, Susi Wanda Sartono, Dedy Sekar Ayu, Rona Sepling Paling Shah Putra, Rima SHINZO IZUMI Sholihah, Anisa Nuraini Maratu Sholihah, Fitri Annas Siallangan, Dewi Sari Eunike Siregar, Emil Salim Siswanto, Rizky Dwi Siti Kurniawati Siti Nurhaliza Sri Mulyani Supriatin Supriatin, Supriatin Supriyono Supriyono Sustiyana Sutikno Sutikno Sutrisno, Sutrisno Suyitno Suyitno Syafiuddin, Achmad Syahrunsyah, Syahrunsyah Syaman, M. Syamsul Bahri tanasyah, yusak Timurleng Tonang Mataallo, Timurleng Tonang Toetik Koesbardiati Tsuraya, Salma Fahriya Ulung Pribadi, Ulung Valentina, Lista Wahyu Bintoro, Wahyu Wijaya, Aphrodita Shelbyla Yanti, Alfiyah Indah Yayang Sari, Rina Yenni Arista Cipta Ekalaturrahmah Yuniarti Arsyad, Yuniarti Zahra, Indi Zahro, Azzula Cerliana