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Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment)
Published by Institut Pertanian Bogor
ISSN : 14107333     EISSN : 25492853     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Jurnal Ilmu Tanah dan Lingkungan merupakan media yang menyajikan artikel mengenai hasil penelitian dan telaah perkembangan mutakhir dalam bidang ilmu tanah, air, dan ilmu lingkungan sebagai bahan kajian utama.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Tanah
Articles 6 Documents
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Search results for , issue "Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan" : 6 Documents clear
Pengaruh Penambahan Kompos Kotoran Sapi dan FABA Terhadap Karakteristik Kimia pada Tanah Berpasir dan Pertumbuhan Tanaman Tomat: The Effect of Cow Manure Compost and Fly Ash-Bottom Ash (FABA) Addition on the Chemical Properties of Sandy Soil and Tomato Growth Nurul Faoziah; Iskandar; Gunawan Djajakirana
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.1-5

Abstract

Sandy soil has a low: ability of water retention, aggregate stability, and nutrient content. To improve its quality a mixture of compost and fly ash-bottom ash (FABA) need to be added to this soil. This study was aimed to determine the effect of compost and FABA as an ameliorant on the chemical properties of sandy soil and plant growth of tomato (Solanum lycopersicum). The pot experiment was carried out at Cikabayan Greenhouse, IPB University using a Completely Randomized Design with seven treatments and two replications. Each 5 kg of sandy soil per pot were mixed with cow manure compost and FABA at various doses. The test plant was tomato variety SL 975. Parameters of soil chemical properties were observed for organic-C, total N, available P, CEC, and exchangeable bases. Plant growth was observed at five weeks after planting (WAP). The A6 treatment, i.e. addition of 1,950 gram compost pot-1 and 25 gram FABA pot-1, showed the highest organic-C content in the soil (3.83%) as well as the plant height, leaf number, and fresh weight by 54.4 cm, 21 sheet, and 68.7 gram.
Identifikasi Kedalaman Pirit dan Kaitannya Terhadap Kesehatan dan Produktivitas Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) ( Studi Kasus di Perkebunan PT Sawit Sumbermas Sarana Tbk ) Aris Primayuda; Abraham Suriadikusumah; M Amir Solihin
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.6-13

Abstract

The pyrite layer (FeS2) characterizes acid sulphate soil. Under oxidized conditions, pyrite produces sulphuric acid that increases acidic soil to very acidic (pH 2-3). This condition is a threat to plantation, including oil palm plantation. Therefore, the management of acid sulphate soil must take into account the depth of pyrite layer. Studies on the identification of pyrite and the use of remote sensing in monitoring plant health are urgently required to optimize oil palm production in acid sulphate soil. In this case study, detailed survey and mapping were performed to measure the depth of pyrite followed by plant health analysis, and production analysis. The results showed that the depth of pyrite layer at the site ranged from 30 cm to over 120 cm from the soil surface. The depth indicated that the 72.40% of the soil was categorized medium pyrite depth (60-120 cm). Furthermore, 484.85 ha was shallow pyrite layer (<60 cm) and deep pyrite layer (>120 cm) covered an area of 163.75 ha. A tendency for a positive linear relationship between pyrite depth, NDVI (normalized difference vegetation index) or plant health, and plant productivity. NDVI values and plant productivity and deeper pyrite depth was identified as shown in higher NDVI values following deeper pyrite layer. Plant productivity on deep pyrite soil was significantly different from the one in medium or shallow pyrite soil. Shallower pyrite layer was followed by lower oil palm production. The productivity has decreased by 39% and 19% in soil with pyrite depths of < 60 cm and 60 cm – 120 cm respectively.
Evaluasi Penggunaan Pupuk Hayati pada Pertumbuhan Tanaman Alpukat (Persea americana Mill.) di Kebun Superavo, Subang: Evaluation of the Use of Biofertilizer on the Growth of Avocado Plants (Persea americana Mill.) at Superavo Orchard, Subang Fahrizal Hazra; Dwi Andreas Santosa
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.14-19

Abstract

Increasing the amount of avocado production is influenced by the effectiveness of fertilization. Fertilization is the most important thing in agriculture to improve plant nutrition, achieve high yields, and change the soil environment. The use of biofertilizer is needed to improve the quality and quantity of plants and reduce the chance of land degradation. The experimental design used was a randomized block design (RBD) with a single factor in fertilization. This RAK has nine treatment levels, namely: 1) control (without NPK and biofertilizer), 2) 100% NPK fertilizer, 3) 50% NPK fertilizer, 4) 100% NPK fertilizer + 100% biofertilizer, 5) NPK fertilizer 100% + 50% biofertilizer, 6) 50% NPK fertilizer + 100% biofertilizer, 7) 50% NPK fertilizer + 50% biofertilizer, 8) 100% biofertilizer, 9) 50% biofertilizer. This treatment was repeated five times. The use of NPK as a combination and substitution of biofertilizer. The basic fertilizer used, namely manure as much as 1.25 kg/tree. Overall, the best treatment was a combination of NPK fertilizer and biological fertilizer, especially in the P3 treatment, namely a combination of 100% NPK and 100% biological fertilizer. This can be seen in the vegetative growth of avocado plants and the soil's chemical and biological analysis, which have increased. Significant results occurred in plant height, the number of tertiary branches, total N, and soil invertase activity.
Aluminium Dapat Dipertukarkan dan Fosfor Tersedia pada Tanah di Provinsi Bangka Belitung: Exchangeable aluminum and available phosphorus in the soils of Bangka Belitung Province Arief Hartono; Desi Nadalia; Praja Hary Satria
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.20-24

Abstract

Productivity of pepper in Bangka Belitung Province has decreased because one of the causes is the problem of the low nutrient availability. The research was conducted in Bangka Belitung Province to determine the distribution of pH, exchangeable aluminium (Exch Al), and available phosphorus (P) and the correlation among those parameters. Soil samples at depths of 0-30 cm and 30-60 cm were collected at the specified points on a 1: 250,000 scale land system map. The pH was determined by shaking the soil sample with distilled water and the ratio of soil sample and distilled water was 1:5. Exch Al was extracted using 1.00 mol L-1 KCl and determined by titration. Available P was determined using the Bray 1 method. Basic statistic analyses to have minimum, maximum, average and standar deviation (SD) values were conducted. Correlation test among pH, exch Al, and available P to evaluate their relationship were also conducted. The results showed that soils in Bangka Belitung were relatively acid, relatively high exch Al especially in the depth of 0-30 cm and relatively low available P as Bray 1-P. Bray 1-P and exch Al on the depth of 0-30 cm had higher SD than that of the other paramaters. As for correlation analyses, pH significantly negatively correlated with exch Al. pH and exch Al did not correlate with Bray 1-P. This research suggested that soil in Bangka Belitung had problem with soil acidity and low amount of available P in the form of Bray 1-P. The amount of Bray 1-P did not correlate with the amount of exch Al.
Kesesuaian Lahan Padi Sawah di Desa Bumi Rapak dan Desa Selangkau Kabupaten Kutai Timur: Land Suitability of Rice Fields in Bumi Rapak Village and Selangkau Village East Kutai Regency Surya Darma
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.32-38

Abstract

The major production of paddy fields is grain, which produces rice as the principal ingredient of Indonesian people’s food. The characteristics of the land that can be evaluated or not suitable and the limiting factors influence the suitability of land for lowland rice. East Kutai Regency in East Kalimantan Province has a fairly large paddy field as a grain producer in Bumi Rapak Village and Selangkau Village. The research objectives to understand and explore the suitability class of paddy fields in Bumi Rapak Village, Selangkau Village, and the principal limiting factors. The method applied by matching the growing requirements of lowland rice with the characteristics of paddy fields. We prove that the low availability of P2O5 nutrients so that the actual land suitability class for lowland rice is marginally suitable (S3) and sub-class S3n; the productivity is only 4.54 tons (ha-1). Improvement efforts carried out by low-to-moderate inputs with the application of SP-36 fertilizer at a dose of 100 kg (ha-1) per growing season, the suitability class increases of quite appropriate (S2) and the S2n sub-class expected to increase productivity to 5.00-6.00 tons (ha-1).
Respon Spektral Tajuk Jagung pada beberapa Perlakuan Pemupukan: Spectral Response of Maize Canopy to Several Fertilization Treatments Muhammad Ardiansyah; Budi Nugroho; Arival Al-Fajar
Jurnal Ilmu Tanah dan Lingkungan Vol 24 No 1 (2022): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitl.24.1.25-31

Abstract

Early detection of plant nutrient status during the maize cycle is important to prevent yield loss and to optimize yield and quality. This study was conducted to analyze the spectral response of the maize canopy to 10 fertilization treatments including control using a spectroradiometer. In this study, the relationship between nutrient content and spectral response was focused on leaf N levels, which were analyzed at 4 and 8 weeks after planting (WAP). Simple and multiple linear regression models were developed to study this relationship, both models based on wavelength spectrum and selected wavelength to see the relationship between spectral reflectance and leaf N content. In general, the spectral response pattern of maize canopy for each treatment at 4 and 8 WAP was similar, where the reflectance of 4 WAP being lower than 8 WAP for all wavelengths. Leaf N levels could be identified at the green wavelength of 555 nm, which was indicated by the lowest reflectance at 4 WAP and high at 8 WAP for treatment of 1 standard (STD) or the highest N dose. The low reflectance of the 555 nm wavelength of this treatment indicated that the N content in the leaves was higher at 4 WAP than 8 WAP. The red, green, and red-edge wavelengths at 4 WAP and 8 WAP showed a moderate to very strong relation with leaf N content with a coefficient of determination (R2) greater than 0.40. The very strong model was shown by the multiple regression model between the combination of blue, green, red, red-edge, and near-infrared spectrum for leaf N levels for both 4 WAP and 8 WAP. The selected wavelength-based model found that the relationship was very strong shown by the wavelength of 671 nm.

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