Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Pertanian Tanaman Pangan Journal of Tropical Crop Science Seminar Nasional Lahan Suboptimal Jurnal Sumberdaya Lahan
Purnamayani, Rima
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Other

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Upaya Efisiensi dan Peningkatan Ketersediaan Nitrogen dalam Tanah pada Tanaman Bawang Merah (Allium ascalonicum L) melalui Pemberian Mikoriza Arbuskular Murni, Widya Sari; Purnamayani, Rima
Seminar Nasional Lahan Suboptimal 2019: Prosiding Seminar Nasional Lahan Suboptimal “Smart Farming yang Berwawasan Lingkungan untuk
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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

Abstract

Murni WS, Purnamayani R. 2019. Efficiency efforts and Increasing  availability of nitrogen in soil on shallot (Allium ascalonicum L) through  arbuscular mycorrhiza. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 186-191. Palembang: Unsri Press. Nitrogen is a macro nutrient that is very important in increasing plant growth and yield. Only 30-50% of N fertilizer from anorganic fertilizer that can be absorbed by plants. Shallow rooting in shallots causes inefficient absorption of nutrients from the soil both from organic matter and anorganic fertilizers. The efficiency of nutrient absorption is greater in mycorrhiza plants compared to plants that have no mycorrhiza, because of the presence and active transport of hyphae found in the symbiotic structure between mycorrhizal fungi and plant roots. The purpose of this paper is to provide information on efforts to improve the efficiency and availability of Nitrogen in the soil in shallot (Allium ascalaonicum L) through arbuscular mycorrhiza. Mycorrhizal fungi in plant roots have the ability to absorb N from organic matter in the soil. Mycorrhizal fungal hyphae can intensify other N fixing bacteria to provide N sources in the soil. Mycorrhizal fungi reduce N nutrient losses through mineralization by abundant N-fixing bacteria due to improved soil structure by mycorrhizal fungi. This is due to external hyphae of mycorrhizal fungi that provide C as an energy source of fastening bacteria N. Compatibility of mycorrhizal fungi with red onion plants allows the roots to expand absorption of nutrients by the roots so that it is expected to reduce the input of anorganic fertilizers without reducing crop yields.Keywords: arbuscular mycorrhiza, efficiency, nitrogen availability, shallots
Komponen Usahatani Pendukung Penerapan Peningkatan Indeks Pertanaman pada Beberapa Agroekosistem Purnamayani, Rima; Wira Etika, Adhe Phoppy; Syahbuddin, Haris
Jurnal Penelitian Pertanian Tanaman Pangan Vol 5, No 1 (2021): April 2021
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v5n1.2021.p47-58

Abstract

ncreasing the cropping index is a strategic policy and program to increase the efficiency of available land use.  Referring to the potential and constraints of cropping index improvement, it is necessary to review the supporting components that affect cropping index implementation improvement in some agroecosystems. The purpose of this study was to aims to analyze the components of farming that support the implementation of increased cropping index in upland, rainfed lowland, and swampy land. This activity was carried out in five provinces namely Banten, West Java, DI Yogyakarta, East Nusa Tenggara, and South Sumatra from August to December 2018. The site selection was done purposively based on agroecosystems. The collected data were tabulated and analyzed using quantitative and qualitative approaches then interpreted descriptively and analyzed with multiple linear regression analysis. The dependent variable (Y) is the cropping index and the independent variables (xi) are labor, water availability, demonstration plot capital availability, water resources, supervisory, and extension media. The results of the combined linear regression analysis showed that water availability and supervisory were the supporting components that have a significant effect on every agroecosystem.  Meanwhile, water, capital and labour availability were variables that have a significant effect on the implementation of increased cropping index in upland agroecosystems.  The dissemination media has a significant effect only on rainfed lowland, while the capital  availability and water sources were supporting components that have a significant effect at  swampy land.
Implementasi Teknologi Mendukung Peningkatan Indeks Pertanaman Jagung di Kabupaten Muaro Jambi Primilestari, Suci; Purnama, Hendri; Purnamayani, Rima; Estiningtyas, Woro
Jurnal Sumberdaya Lahan Vol 15, No 2 (2021)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v15n2.2021.75-88

Abstract

Kabupaten Muaro Jambi memiliki potensi lahan dan air untuk peningkatan IP (Indeks Pertanaman) khususnya komoditas jagung dengan potensi lahan kering seluas 85.540 ha.  Badan Penelitian dan Pengembangan Pertanian telah menghasilkan inovasi teknologi yang dapat digunakan untuk meningkatkan indeks pertanaman pada lahan kering.  Tulisan ini bertujuan mengkaji potensi, ketersediaan teknologi, serta tantangan dan solusi dalam upaya meningkatkan IP jagung di lahan kering Kabupaten Muaro Jambi.  Potensi di Muaro Jambi untuk meningkatkan IP yaitu potensi iklim dengan curah hujan yang cukup rendah, potensi  sumberdaya lahan yang sesuai untuk tanaman jagung berdasarkan arahan peta pewilayahan komoditas dan potensi tanam berdasarkan Kalender Tanam (Katam).  Untuk mendukung potensi dan tujuan peningkatan IP Jagung di Kabupaten Muaro Jambi, telah diidentifikasi ketersediaan teknologi diantaranya Varietas Unggul Baru Jagung Hibrida, pengaturan pola dan waktu tanam berdasarkan Sistem Informasi Katam dan teknologi pengelolaan air yang membutuhkan introduksi infrastruktur panen dan hemat air.  Tingkat adopsi teknologi petani merupakan salah satu faktor yang mempengaruhi upaya peningkatan IP di Kabupaten Muaro Jambi. Kendala tingkat adopsi oleh petani dalam penerapan teknologi untuk meningkatkan IP, dapat diatasi dengan sosialisasi inovasi teknologi pendukung peningkatan IP, pendekatan sosial budaya kepada petani, penyuluhan dengan berbagai media dan metode diseminasi yang sesuai membangun kelembagaan serta pendampingan implementasi teknologi. Implementasi peningkatan indeks pertanaman harus dilihat secara komprehensif, dengan mempelajari permasalahan yang ada, melihat potensi dan peluang serta  kemudian menyampaikan solusi dan manfaat kepada petani.
How Do Groundwater Levels and Soil Moisture Influence the Peat Fire Vulnerability Index in Oil Palm Plantations? Purnamayani, Rima; Tarigan , Suria Darma; Sudradjat, Sudradjat; Syahbuddin, Haris; Dariah, Ai; Kartiwa, Budi
Journal of Tropical Crop Science Vol. 12 No. 01 (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.12.01.235-245

Abstract

Peatland fires are a significant environmental issue, impacting local ecosystems and contributing to global climate change. This study evaluates the Peat Fire Vulnerability Index (PFVI) for sapric and hemic maturity levels under oil palm plantations in Pangkalan Pisang Village, Riau Province. Data on groundwater level, soil moisture, rainfall, and maximum temperature were collected from December 2021 to December 2022. The PFVI, modified from the Keetch-Byram Drought Index (KBDI), was calculated and correlated with these variables. The groundwater level varied from 3 cm to 76 cm below the surface, with an average of 36.23 cm. In sapric blocks, 29% of the groundwater level was less than 40 cm, while 73% were deeper. In hemic blocks, 44% were less than 40 cm, and 56% were deeper. Soil moisture in the top 10 cm layer fluctuated between 32% and 55% (v/v) Results showed significant negative correlations between PFVI and groundwater levels (r = -0.173 to -0.889) and soil moisture (r = -0.835 to -0.808), indicating that lower groundwater levels and soil moisture increase fire risk. High PFVI values in July corresponded with the lowest rainfall (59 mm) and groundwater levels below 40 cm. The study highlights the importance of monitoring hydrometeorological conditions and soil properties to effectively predict and mitigate peatland fires. Our findings are crucial for developing strategies to manage peatland sustainability and reduce fire hazards, especially in tropical regions with prevalent oil palm cultivation.
Co-Authors AI DARIAH Budi Kartiwa Haris Syahbuddin Murni, Widya Sari Primilestari, Suci Purnama, Hendri Sudradjat Sudradjat Syahbuddin, Haris Tarigan , Suria Darma Wira Etika, Adhe Phoppy Woro Estiningtyas