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Zulkarnain

Publications (6)

The Effect of Flooding on Several Soil Nutrient Contents in Rice Fields in Lempake Village

Zulkarnain, Dita Arnelia Rahmawati, Rabiatul Jannah & Abdul Rahmi · Asian Journal of Soil Science and Plant Nutrition · 2025

Flooding can damage agricultural land because it can carry and deposit mud, wood waste, gravel, rocks, and sand, causing damage and loss of topsoil. The purpose of this study was to determine the post-flood soil nutrient content in rice fields in Lempake Village, Samarinda City....

Open access Research Article 10.9734/ajsspn/2025/v11i3568

Erosion Rate in Post-Coal Mining Reclamation Area in Kutai Kartanegara District, Indonesia

Zulkarnain, R. M. Nur Hartanto, Ria Rachel Paranoan, Siti Alya Uzhary & Abdul Rahmi · Journal of Agriculture and Ecology Research International · 2023

Erosion is the transport of parts of the soil from one place to another by natural agent, namely water, and wind. Mining in Indonesia generally uses open-pit mining methods. Generally, open pit mining has a very high erosion rate due to damage to soil aggregation and high interac...

Open access Research Article 10.9734/jaeri/2023/v24i4533

Analysis of Agricultural Land Capabilities in the Spatial Plan of the Berau District, Indonesia (2016 – 2036)

Jumiati, Zulkarnain & Abdul Rahmi · Journal of Agriculture and Ecology Research International · 2025

An analysis of the carrying capacity of agricultural land needs to be carried out to determine the land's ability to provide food to meet the needs of the population in an area within a certain time.  Land capability is a component used to determine the suitability of land potent...

Open access Research Article 10.9734/jaeri/2025/v26i1663

Utilization of Arbuscular Mycorrhizal Fungi for the Efficiency Development of Lead (Pb) Metal Absorption and Growth of Hanjuang Plants (Cordyline fruticosa)

Nur Hartanto, Zulkarnain & Herlinda Dwi Wardani · International Journal of Plant & Soil Science · 2024

Contamination of Pb metal into the soil is an environmental problem that has a serious impact on living things, so it needs to be addressed through phytoremediation, one of which is using hanjuang plants. Plant roots in symbiosis with arbuscular mycorrhizal fungi (AMF) can increa...

Open access Research Article 10.9734/ijpss/2024/v36i105066

Studies on Soil Physical Quality of PT Coal Mine Reclamation Land, Sumber Bara Abadi, Kutai Kartanegara Regency, Indonesia

Araihan Hidayad, Zulkarnain & R.M. Nur Hartanto · Journal of Agriculture and Ecology Research International · 2024

Evaluation of the physical quality of soil on coal mine reclaimed land is needed to monitor and evaluate reclamation activities aimed at restoring and improving soil quality. The results of the evaluation of the quality of the physical properties of the soil are presented as an i...

Open access Research Article 10.9734/jaeri/2024/v25i3603

Chemical Characteristics of Peat Soil on Oil Palm (Elaeis geuineensis Jacq.) Plantations in Puan Cepak Village, Muara Kaman District, Kutai Kartanegara Regency

Raden Mas Nurhartanto, Siti Aesyah, Zulkarnain & Abdul Rahmi · Asian Research Journal of Agriculture · 2026

The use of peat soil for agricultural development faces many obstacles related to the natural properties of peat, including its relatively high acidity. Peatland is a marginal land area targeted for agricultural use, including oil palm cultivation. This study aims to assess the c...

Open access Research Article 10.9734/arja/2026/v19i3866