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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Hortikultura Indonesia (JHI) Agrotrop : Journal on Agriculture Science Journal of Tropical Soils Jurnal Ilmu-Ilmu Pertanian Indonesia TERRA : Journal of Land Restoration Akta Agrosia

Merakati Handajaningsih

Universitas Bengkulu

Author-ID : 273957

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science

Published : 31 Documents Claim Missing Document

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Amelioration of Salinity Stressed Soil Using Natural Zeolite for Improving Soil Properties and Chinese Cabbage Agronomic Performances Romadhan, Tantrie D; Marwanto, Marwanto; Murcitro, Bambang G; Handajaningsih, Merakati
Akta Agrosia Vol 25 No 1 (2022)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Salinity stress is the major abiotic stress for crop production. The purpose of this study was to evaluate the effectiveness of zeolite on improving soil properties, the growth, and yield of Chinese cabbage. This pot experiment was conducted from September to November 2020 at the Research and Teaching Field of the Faculty of Agriculture, consisted of 6 treatment levels, i.e. (1) control, (2) soil + 6.9 g NaCl /10 kg soil, (3) soil + 6.9 g Na2SO4 /10 kg soil, (4) soil + 3.2 g zeolite /10 kg soil, (5) soil + 6.9 g NaCl /10 kg soil + 3.2 g zeolite /10 kg soil, and (6) soil + 6.9 g Na2SO4 /10 kg soil + 3.2 g zeolite /10 kg of soil, and arranged in a completely randomized design with 3 replications. The application of zeolite decreased the EC of salinized soil and increased the soil CEC. NaCl salinity stress reduced plant height (23%), number of leaves (22%), fresh weight of roots (165%), dry weight of roots (170%), stalk length (32%), and plant dry weight (131%), while Na2SO4 salinity stress only reduced the number of leaves (23%). The addition of zeolite to salinized NaCl soil increased stalk length (39%), plant fresh weight (172%), leaf fresh weight (174%), plant dry weight (133%), and leaf dry weight (23%), while to salinized Na2SO4 soil only increased plant dry weight (90%) and leaf dry weight (177%). The overall results show that the addition of zeolite can effectively ameliorate salinity stress due to NaCl.

KANDUNGAN NITRAT DAUN, PERTUMBUHAN, DAN HASIL BIOMASSA SAWI DAN PAKCOY PADA PEMBERIAN PUPUK NITROGEN ANORGANIK DAN KOMPOS AZOLLA SECARA BERIMBANG Pratiwi Pratiwi; Marwanto Marwanto; Widodo Widodo; Merakati Handajaningsih
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 23 No 1 (2021)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.23.1.1-8

[LEAF NITRATE CONTENT, GROWTH, AND BIOMASS YIELD OF GREEN MUSTARD AND CHINESE CABBAGE FOLLOWING BALANCED APPLICATION OF INORGANIC NITROGEN FERTILIZER AND AZOLLA COMPOST]. The aim of this study was to determine the application rate of Azolla compost, either alone or combined with inorganic N fertilizers, to produce high biomass of mustard greens and Chinese cabbage with low leaf nitrate content. The pot experiments were carried out at the Research Plot of the Faculty of Agriculture located in Bengkulu University Campus from December 2019 to January 2020 with five treatments arranged in a completely randomized design with five replications. The treatments were 100% IF or IF100 (42.0 mg N/kg soil), 100% AC or AC100 (4000 mg/kg soil), IF75 (31.0 mg N/kg soil) + AC25 (1000 mg/kg soil), IF50 (21.0 mg/kg soil) + AC50 (2000 mg/kg soil), and IF25 (10.5 mg/kg soil) +AC75 (3000 mg/kg soil). The results showed that partial replacement of IF with AC (IF75 +AC25) produced plant growth and biomass yield similar to IF100 or higher than IF100 and AC100. The treatment produced plant biomass of 9.35 g plant-1 for green mustard and 167.10 g plant-1 for pakcoy, 32% and 35% higher than AC100 treatment respectively. The leaf nitrate content was 1080 - 2760 mg kg-1 for green mustard and 2310 - 2820 mg kg-1for Chinese cabbage, lower than the maximum limit of safe nitrate for consumption which was set at 3100 mg kg-1. Overall, compared with their sole applications, the partial substitution of inorganic N fertilizer with Azolla compost represents the most effective practice to promote the biomass yield of low-nitrate green mustard and Chinese cabbage.

Co-application of Arbuscular Mycorrhizae via Seed Coating and Phosphorus Fertilizer for Enhancing Growth, Yield, and Nutrient Uptake in Ultisols for Maize Marwanto, Marwanto; Bustamam, Hendri; Handajaningsih, Merakati; Anggraini, Septiana
TERRA : Journal of Land Restoration Vol. 7 No. 1 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.7.1.8-13

A field trial was conducted to determine the efficiency of AMF inoculation for enhancing growth and yield performance of maize, root colonization, soil available P, and P uptake in Ultisols amended with different P dosages. This experiment was conducted in a 3 x 3 factorial scheme under complete randomized design with three AMF inoculation methods and three different P levels (0, 60, and 120 kg P2O5 ha-1) in five replications. Data were collected on plant growth, yield parameters, soil available P, P uptake, and root colonization. Results showed that inoculation via seed coating at 60 kg P2O5 ha-1 gave a significant (p<0.05) increase in growth traits (average of 25%), biomass production, grain yield (average of 30%), soil P availability, P uptake, and root colonization. Inoculation via seed coating combined with 60 produced the same values of all the tested parameters with and seed coating inoculation and soil inoculation at120 kg P2O5 ha-1. Thus, seed coating was as effective tool as soil inoculation for AMF delivery and capable of reducing 50% of P fertilizer use. For these reasons, co-application of P fertilizer and AMF inoculation via seed coating could be practiced to improve corn yields on poor Ultisols.

Equal Substitution of Synthetic Nitrogen Fertilizer with Azolla Compost on Growth, Yield, and Nitrate Content of Green Onion in Ultisols Chiristiana; Marwanto; Marlin; Handajaningsih, Merakati; Anggraini, Septiana
Akta Agrosia Vol 26 No 2 (2023)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.26.2.87-97

The impact of Azolla compost (AC) substitution for synthetic N fertilizer (NF) on nitrate leaf content and agronomic performances of green onion in Ultisols have not been well understood. Therefore, this study aimed to assess the effects of equal replacing NF with AC on growth, yield, and nitrate accumulation in the green onion leaf. The polybag trial was performed in June 2020 on the crop research farm of the Agriculture Faculty in a completely randomized design with six treatments in five replications. Green onion was subjected to five 92 kg ha−1 N equal combinations of NF and AC, i.e., NF100 (100% NF+0% AC), NF75 +AC25 (75% NF+25% AC), NF50 +AC50 (50% NF+50% AC), NF25 +AC75 (25% NF+75% AC), and NF0 +AC100 (0% NF+100 % AC) and no NF and AC as a control. Results demonstrated that NF+AC treatments significantly improved plant height, leaf number, tiller number, stem diameter, and plant fresh weight. Treatment of NF25+AC75 resulted in similar responses to the recommended dose of N fertilizer, as evidenced by plant height, number of green leaves, root fresh weight, shoot dry weight, tiller numbers per hill, stem diameter, shoot fresh weight, and plant fresh weight. Lower leaf nitrate contents occurred under increased substitution of NF with AC. Thus, partial substitution of NF with AC could be a sustainable option for improving growth and yield while reducing nitrate accumulation in the leaf of green onion in Ultisols. Keywords: azolla compost substitution, integrated nutrient management, synthetic fertilizer reduction, green onion agronomic performance, Ultisols Keywords: azolla compost, green onion, integrated nutrient management, chemical fertilizer reduction, Ultisols

Relationship between Soil Health Assessment and the Growth of Lettuce Riwandi, .; Handajaningsih, Merakati
JOURNAL OF TROPICAL SOILS Vol. 16 No. 1: January 2011
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2011.v16i1.25-32

Soil health is very important point for plant growth which is measured by several indicators. The purposes of the research were to assess and to classify soil health Padang Betuah area of Bengkulu, and to compare between soil health indicators and lettuce plant performance indicators. Soils, consist of mineral and peat soils, were sampled using a soil random sampling technique. Lettuce plants were grown in polybags using sample soils. Both lettuce performance and soil health were assessed by calculating the percentage of total scores of lettuce plant or soil performance indicators which derived from variables observed. Soil variables for field evaluation included color, moisture content, texture, structure, compaction, land slope, organic matter, pH, amount of earthworm, erosion level, LCC (Legume Cover Crop), and vegetation performance. Soil variables for laboratory evaluation were pH, electrical conductivity (EC), total Carbon and Nitrogen, available-Posphorus, cation exchangeable capacity, basesaturation, and aluminum saturation. While, the variables for lettuce growth performance included plant height, numbers of leaf, degree of leaf greenness, plant fresh weight, and relative percentage of shoot : root ratio. The results of field and laboratory evaluation showed that soil health were categoried as a healthy soil and moderate healthy soil both for mineral and peat soils, respectively. Furthermore, similar categories were also obtained for evaluation of plant performance categories. No correlation was found between the soil performance indicatorcategory and the lettuce performance category.Keywords: Field indicator, laboratory indicator, lettuce growth indicator, soil health

Soil Quality Improvement Using Compost and its Effects on Organic-Corn Production Riwandi, .; Handajaningsih, Merakati; Hasanudin, .; Munawar, Ali
JOURNAL OF TROPICAL SOILS Vol. 20 No. 1: January 2015
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2015.v20i1.11-19

Intensive agriculture has been well known to cause decline in soil organic matter and nutrient content of the soils. Therefore, efforts should be taken to avoid this from happening. Addition of organic fertilizers like compost has been increasingly become more important in Indonesian agriculture in the last couple of decades. The objectives of this study were to produce high quality compost using Indore method and to investigate its effects on organic-corn production. The study was conducted in the Integrated Agriculture Zone (IAZ), University of Bengkulu for two years (2012 and 2013). The study consisted of three steps: (i) soil fertility identification, (ii) compost production, and (iii) organic-corn field production. Soil fertility identification involved physical, chemical, biological analysis of soil samples collected from less fertile and moderately fertile soils. A randomized completely block design was employed in the field study which involved five rates of compost and two levels of soil fertility with three replications. In 2012, high quality compost was black, had pH 8, fine, odorless, and sufficiently high in NPK contents. Organic-corn yielded 2.94 and 5.69 Mg ha-1 of dried kernels on less fertile and moderately fertile soils, respectively at 20 Mg ha-1 compost. Similarly, in 2013 high quality compost was black, had pH 8, moderate, odorless, and high in NPK contents. The corn yields were 3.75 and 1.93 Mg ha-1 on less fertile and moderately fertile soils, respectively at 22.50 Mg ha-1 compost. [How to Cite: Riwandi, M Handajaningsih, Hasanudin, and A Munawar. 2015. Soil Quality Improvement Using Compost and its Effects on Organic-Corn Production. J Trop Soils 19: 11-19. Doi: 10.5400/jts.2015.20.1.11][Permalink/DOI: www.dx.doi.org/10.5400/jts.2015.20.1.11]

Trait Evaluation of 9 Bird’s Eye Chili (Capsicum frutescens L.) Hybrids on Coastal Area Tri Mauli, Emilda; Rustikawati; Catur Herison; Marulak Simarmata; Merakati Handajaningsih
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.71-79

Soil in coastal areas are less suitable for agriculture due to various constraints causing low soil fertility. Until now, there has been no available bird’s eye chili variety tolerant to coastal stress conditions. This research aims to characterize nine bird’s eye chili hybrids grown on coastal land. The research was conducted on coastal land in Kuala Alam Nusa Indah, Ratu Agung District, Bengkulu, from August 2024 to February 2025. The experiment was arranged in a Randomized Complete Block Design (RCBD) with three replications. The traits observed consisted of both quantitative and qualitative variables related to bird’s eye chili growth and yield. Quantitative data were analyzed using ANOVA at a 5% and 1% significance level, followed by a Scott-Knott test, α = 5%, to assess data grouping. Qualitative data were descriptively analyzed by comparing with reference to the descriptor for capsicum. The results showed that the tested hybrids differed in all traits. The results showed that the hybrid H3 (A11 × A7) showed the highest production potential with long fruit and large yields despite slower days to flower and a small stem diameter, while hybrid H8 (A39 × A29) excelled more equally in most traits, including fast days to flower, highest plant height and dichotomous height, large stem diameter, large number of branches, high leaf greenness, long fruit with large diameter, and a high fruit weight. Overall, H3 and H8 bird’s eye chili hybrids are potential to be adapted varieties to coastal areas with improvements in several characteristics. Full text pdf

Evaluation of Technological Packages for High Yield of New Hot Pepper Hybrids in Ultisol Herison, Catur; Joko Suharjo, Usman Kris; Handajaningsih, Merakati; Rustikawati; Syakia Kurin, Aricha
Jurnal Hortikultura Indonesia (JHI) Vol. 12 No. 1 (2021): 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.12.1.21-30

Ultisols memiliki potensi yang sangat besar untuk meningkatkan produksi cabai merah nasional. Namun kesuburannya yang rendah menghambat pertumbuhan dan hasil banyak tanaman, termasuk cabai. Banyak studi telah dilakukan untuk mengatasi berbagai masalah pada tanah ini, akan tetapi jarang dijumpai kajian menggunakan kombinasi beberapa teknologi budidaya. Penelitian ini bertujuan untuk menentukan paket teknologi budidaya hibrida cabai merah hasil tinggi di Ultisol. Penelitian dilakukan di lahan masam Ultisol, Provinsi Bengkulu, dengan ketinggian sekitar 400 m di atas permukaan laut. Empat paket teknologi diaplikasikan pada tiga varietas hibrida cabai merah baru dalam desain petak terpisah dengan tiga ulangan. Paket teknologi tersebut adalah Paket-A, Paket-B, Paket-C dan Paket-D. Varietas hibrida cabai merah yang diuji adalah UNIB CHR17F1, UNIB CHR23 dan Maxima. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan pola respon pertumbuhan dan hasil, kecuali ukuran batang, di antara ketiga varietas hibrida terhadap paket teknologi yang diuji. Paket terbaik yang dapat memberikan hasil tinggi adalah paket teknologi A diikuti oleh paket C. Varietas UNIB CHR17F1 memiliki hasil yang lebih tinggi dibandingkan dengan hibrida lainnya. Kata kunci: Capsicum annum, lahan masam, teknologi tepat guna

Daya Gabung dan Heterobeltiosis Karakter Pertumbuhan dan Hasil Beberapa Galur Backcross Cabai Merah Toleran CMV pada Kondisi Terinokulasi Herison, Catur; ,, Rustikawati; Handajaningsih, dan Merakati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 45 No. 3 (2017): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

ABSTRACTInformation on combining ability and heterosis are desirable to determine the best parents in chili pepper hybrid variety development. To estimate general and specific combining abilities and heterobeltiosis of backcross lines selected for CMV tolerance, eight selected lines were crossed to three CMV tolerant lines in a Line x Tester method and the crosses were evaluated in a CMV inoculated condition. The results showed that general and specific combining abilities varied tremendously among crosses and traits. Generally, specific combining ability (sca) variances were higher than general combining ability (gca) variance indicating that interaction of non-aditive predominance the inheritance of traits under study. Amongs lines evaluated, there was no a general combiner line for vegetative growth. However, lines S1B3A-29-13-47 and S1B3B-12-13-2 were the best general combiner for a breeding program to improve total number of fruits and fruit weight per plant, respectively. Crosses of S1B3C-16-22-34 x C1042, S1B3B-49-40-6 x C1043, and S1B3C-34-18-9 x C1042 were consedered the most prospective crosses as indicated by high value of sca, i.e., 130.53, 102.01 and 61.93, with heterobeltiosis estimate of 146.06, 26.05 and 24.31, respectively.Keywords: capsicum annuum, heterobeltiosis, GCA, SCA

Karakterisasi, Variabilitas Genetik dan Heritabilitas Genotipe Tapak Dara (Catharanthus roseus) Venti Novita Sari; Dwi Wahyuni Ganefianti; Merakati Handajaningsih
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 49 No. 3 (2021): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Karakterisasi, variabilitas genetik dan heritabilitas tanaman tapak dara penting diketahui pemulia untuk melaksanakan seleksi dalam meningkatkan kualitas dan kuantitas tanaman tapak dara sebagai tanaman hias. Tujuan penelitian ini adalah untuk memperoleh informasi variabilitas dan heritabilitas berbagai karakter 13 genotipe tapak dara. Penelitian dilaksanakan dari bulan Oktober 2020 sampai bulan Februari 2021. Percobaan bertempatkan di screen house Perumahan Rakyat, Kota Bengkulu. Penelitian ini disusun dalam rancangan acak lengkap (RAL) faktor tunggal yang terdiri dari 13 genotipe tapak dara dengan tiga ulangan. Hasil penelitian menunjukkan pada 13 genotipe tapak dara terdapat keragaman pada karakter kualitatif yaitu bentuk daun (memanjang dan jorong), tipe pertumbuhan batang (menggantung dan tegak), warna utama corolla (pink pucat, peach, putih, pink fanta, apricot, pink taffy, lavender, magenta, rose pink, pink kemerahan, pink, baby pink, dan orange), dan warna tengah corolla (pink pucat, peach, putih, pink fanta, merah, french rose, baby pink, dan orange). Ragam genetik diantara 13 genotipe tapak dara bernilai 0.01-32.15 (sempit), dan nilai heritabilitas karakter berkisar rendah-sedang (2-50%). Dugaan kemajuan genetik yang memiliki nilai tinggi yaitu pada karakter jumlah kuntum bunga per buku (20%) dan jumlah cabang (23%). Kata kunci: karakter kualitatif, karakter kuantitatif dan tanaman hias

Co-Authors ,, Rustikawati . Hasanudin . Hasanudin . Riwandi . Riwandi A.A. Ketut Agung Cahyawan W Ali Munawar Ali Munawar Almunawar, Said Agil Alnopri Armitasari, Tri Atra Romeida Bambang Gonggo Murcitro Bambang Purnomo Bandi Hermawan Bustaman, Hendri Bustaman, Hendri Catur Herison Chiristiana Dedi Saputra Dwi Wahyuni Ganefianti Dwi Wahyuni Ganefianti, Dwi Wahyuni EDHI TURMUDI Eko Suprijono ENTANG I. SUKARJO Fahrurrozi, Fahrurrozi Haquarsum, Eka J.V. Hartal, Hartal Hasanudin Hasanudin Hendri Bustamam Herison, Catur Hermansyah Hermansyah HESTI PUJIwATI Hidayat Hidayat Inoriah, Entang Joko Suharjo, Usman Kris Manullang, Yedija Marlin Marulak Simarmata Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto, Marwanto Mimi Sutrawati Mucitro, Bambang G. Muhammad Tegar Putra Bahari Murcitro, Bambang G Nabila, Athya Kania Nasiroh, Nasiroh NORMA LIDIAWATI Nursalim Nursalim Pratiwi Pratiwi Rajagukguk, Natalia Reny Herawati Resti , Cynthia Riwandi, . Riwandi, Riwandi Romadhan, Tantrie D Rustikawati Rustikawati Rustikawati Septiana Anggraini, Septiana Suharjo, Usman K.J. Suharjo, Usman Kris Joko Sukisno Sumbayak, Roy S.O. Supanjani, Supanjani Supanjani, Supanjani Syakia Kurin, Aricha Teguh Adiprasetyo Tri Mauli, Emilda Tri Utami Umi Salamah Usman Siswanto Venti Novita Sari Viani, Reza Junita Okta Wati, Shinta Puspita Widodo Widodo

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