Martinus, Ali
Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Pertumbuhan Bibit Acacia crassicarpa dengan Pemberian Bokashi dari Beberapa Bahan Utama Martinus, Ali
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 6, No 2 (2017): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Martinus et al, 2017. Acacia crassicarpa Seedling Growth with Bokashi from Variety Ingredient. JLSO 6(2):185-191.The provision of nutrients for plants in HTI (Plantations Industries), especially at the time of seeding, can be done with the addition of organic and inorganic fertilizers. Inorganic fertilizers can provide nutrients quickly. However, if this is done continuously will cause the soil damages. Meanwhile, although organic fertilizers provide slow nutrient, it can be improve physical and chemical soil. One kind of organic fertilizer is Bokashi., Bokashi compost is produced from the fermentation process. This study aims to determine the effect of variety ingredient of Bokashi as nursery media makers onĀ  A.crassicarpa seedling growth. This trial uses design complete randomized design (RCD), with four replications and 7 treatments. Treatments include (A) NPK, (B) Kumpai, (C) Desmodium, (D) Salvinia (E) A. Crassicarpa, (F) A. Mangium, (G) E. pellita. The experimental results showed that the main ingredient kiambang bakashi giving a better effect on the growth of A. crassicarpa in the nursery than kumpai, Desmodium, leaf litter A. mangium, A. crassicarpa, E. pellita and control (NPK).
Impact of Mounding on Poisoning Potential of Acid Sulphate Soil under Industrial Plants Forest Area Ogan Komering Ilir District Martinus, Ali; Setyawan, Dwi; Windusari, Yuanita
Sriwijaya Journal of Environment Vol 4, No 1 (2019): PLANT AND FORESTRY
Publisher : Program Pascasarjana Universitas Sriwijaya

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Abstract

Industrial Forest Plantations (HTI) are intended to increase productivity non-productive natural forest production. In Ogan Komering Ilir Regency HTI was developed in wetlands, one of which was acid sulphate soil which had major problems of flooding and waterlogging. To solve this problem, the technology other than making drainage canals is mounding. Mounding is by stacking around the material. It turned out that this mounding in acid sulphate soil posed a new problem is pirite oxidation which affected poisoning potential in acid sulphate soil. Purpose of this study was to analyze impact of this mounding on poisoning potential in acid sulphate fields in HTI area. This study uses survey methods and data are presented in tabulations. Analysis results of soil samples in mounding plot showed that poisoning potentialĀ  could be seen, namely soil pH was very acidic (pH <3), saturation of Al-dd was very high (> 70%), and concentration of pyrite was high (> 2.4%). This value is not suitable for plant growth