Sains Tanah - Journal of Soil Science and Agroclimatology
ISSN / EISSN: 14123606 / 23561424
Published by: Universitas Sebelas Maret
Total articles ≅ 187
Latest articles in this journal
Published: 1 July 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 145-159; https://doi.org/10.20961/stjssa.v19i2.59758
Globally, biochar research and its application for soil improvement have attracted the interest of many researchers, primarily environmental and soil scientists, in the last decade. But, a limited number of biochar research studies have been conducted in Bangladesh. Therefore, a comprehensive study on biochar research is necessary to find out the scope and opportunities of biochar application in the soils of Bangladesh. Generally, biochar can improve the physical, chemical, and biological properties of soils. It also has a significant role in greenhouse gas emissions. The contaminated soils can also be remediated through the judicious application of biochar. In Bangladesh, biochar application enhanced soil pH, organic matter, phosphorus availability, and agricultural production while decreasing soil acidification, microbial activity, and heavy metals mobility. Besides that, there were both positive and negative findings regarding nitrogen availability, greenhouse gas emissions, and heavy metal accumulation. However, this review includes the selection of feedstock, the advancement of pyrolysis technology, the characterization of biochar, and the agronomic and environmental benefits of biochar use. This paper also reviews biochar study and application activities in Bangladesh over the last decade. Further research directions have been suggested to ensure the beneficial and safe application of biochar to agricultural property.
Published: 1 July 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 132-144; https://doi.org/10.20961/stjssa.v19i2.59833
Bio-farming is an eco-friendly advance that minimizes the required chemical additives for optimizing the quality of crops that their storage is often accompanied by seeds’ components degradation. Magnetic treatment of seed was considered as a promising tool improves germination and growth. This study aims to evaluate the effect of individual and combined application of bio-fertilizers and the N-P-K mineral fertilizers preceded by magnetic treatment of dry and/or water-soaked seeds before sowing on the yield and quality of soybean cultivated in a saline soil.The field experiment was carried out in a split-split plot design with triplicates. The main two factors (F1) were not bio-fertilized and bio-fertilized plots. The sub-factors (F2) were three application rates (A: 50%, B: 75%, and C: 100%) of recommended doses of the three N, P, K fertilizers. The sub-sub factors (F3) were seeds not magnetically treated (NM) and magnetically treated (M). All factors were studied for dry soybean seeds (without soaking) and soaked seeds in magnetically treated water. After harvesting, soil and plant samples were analyzed. The most significant increase in the soybean seed yield (kg ha-1) was by 49.98% for the bio-fertilized magnetized dry seeds at 75% and 100% mineral N-P-K fertilization compared with the NM soaked seeds at 50% N-P-K (A rate) without bio-fertilization. The 75% mineral fertilization significantly increased the protein (%) by 41.69% and decreased the proline (mg g-1dw) by 46.68%. Magnetic treatment of seeds before cultivation and combined bio/mineral N-P-K fertilization reduced the Proline that alleviats the stress conditions.
Published: 18 June 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 111-122; https://doi.org/10.20961/stjssa.v19i1.59444
Arbuscular mycorrhiza (AM) is known as multifunctional fungi for plant helpers under adverse conditions. However, studies that focused on the production strategy of AM biofertilizers with specific targets related to the soil limitations are limited. This study aimed to examine AM inocula from several sources using various compositions of acid mineral soil-based media and maize hosts in pot cultures to obtain effective AM inocula to handle the phosphor (P) limitations in acid mineral soils. Zeolite and Inceptisols were used as comparing media. The study utilized a completely randomized factorial design with two factors, namely C = media composition (C0: zeolite; C1: representative media of Alfisols; C2: typical media of a mixture of Alfisols, Oxisols, and Ultisols; C3: typical media with the addition of Bio-RP nutrition; C4: Inceptisols) and I = AM inoculum source (I0: without inoculum; I1: inoculum from Alfisols; I2: mixed inoculum from Alfisols, Ultisols, and Oxisols; I3: mixed inoculum from eight soil types), and six replications per treatment combination. The AM cultures on acid mineral soil-based media, which yielded the highest mycorrhizal infection, spore reproduction, and glomalin content, were C1I2 and C3I2, while the highest maize growth and P concentration were obtained with C1I1, CII2, C2I1, and C3I2. Compared to all the treatments, C1I1 and C1I2 are the superior AM cultures. Further study is necessary to confirm the effectiveness of AM cultures.
Published: 9 June 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 99-110; https://doi.org/10.20961/stjssa.v19i1.58211
This study was conducted to identify suitable sites for shrimp farming combined with the mangrove development (SFM) in the coastal area of central Vietnam. An integrated approach using GIS with weighted Multi-Criteria Evaluation (MCE) by Analytic Hierarchy Process (AHP) was adopted for the selection of sites. In this study, fifteen sub-criteria belonging to three main criteria (geographical conditions, water quality and infrastructure availability) were selected as evaluation parameters in the GIS model. The study indicated that the geographical factors are the most important for the SFM development with 0.44 weight. However, the availability of such areas is limited. Results of the integrated study indicated that SFM area for development is highly suitable: 1127.82 ha (15.57%), moderately suitable: 2056.87 ha (28.4%), marginally suitable: 2835.52 ha (39.16 %) and not suitable: 3204.36 ha (17.0 %) in the Hau basin, Vietnam. In this study, we have also used GIS-AHP-MCE methods for developing organic shrimp farming and mangrove rehabilitation.
Published: 9 June 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 91-98; https://doi.org/10.20961/stjssa.v19i1.57816
Intensive chemical fertilizer use has led to environmental problems, ecological impacts, and dependence on chemical fertilizers. Microbial inoculants (biofertilizers) combined with mineral fertilizers can be used to establish an environmentally friendly and sustainable agricultural practice. This study aimed to observe the effectiveness of multifunctional microbes (S. pasteuri and A. costaricaensis) in their wild-type and mutant forms. The microbes can simultaneously solubilize phosphorus and potassium from minerals (rock P and feldspar) to support maize growth and yield. Microbial viability in the zeolite carrier was tested, and the treatment was applied to the field to determine the effect on maize growth and yield. The results showed that zeolite could maintain the microbe population at an average of 108 CFU g-1 during 4 months of storage. A field test revealed that all microbes treatments combined with minerals without the addition of chemical fertilizers could support maize growth and yield by producing maize ear. In particular, mutant A. costaricaensis can support dry stalk weight and maize ear length as effective as chemical fertilizers due to its ability to increase available P and exchangeable K in the soil. Overall, microbes could provide P but not K from the minerals and soil for plant uptake.
Published: 26 May 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 73-79; https://doi.org/10.20961/stjssa.v19i1.57554
Paddy soil has attracted several studies; however, the effects of pretreatment on soil carbon mineralization remain unclear. This study aimed at validating the effects of soil pretreatment by performing anaerobic incubation of 15 soil samples before treating at room temperature water boiling at 80°C or ultrasound assist at 37Hz and combining (hereafter are control, hot water, ultrasound, mixed hot water, and mixed ultrasound treatments) conducted with three replications. Results showed that initial extracted carbohydrate and incubation extracted carbohydrate (Ini-ECH and Incu-ECH) ranged from 211 to 691 mg kg−1 and 229 to 961 mg kg−1, respectively, and reached the highest values with hot water. control, ultrasound, and mixed ultrasound treatments showed the lowest Ini-ECH (211–269 mg kg−1), while the lowest Incu-ECH was linked to both mixed soil treatments with similar amounts (229–264 mg kg−1). Conversely, soil carbon mineralization (generated extracted carbohydrates during anaerobic incubation, Min-ECH) was similar in control, hot water, and ultrasound treatments (ranged from 271 to 393 mg kg−1) but tended to be a negative value in mixed soil treatments. Therefore, we conclude that hot water and ultrasound pretreatments do not increase soil carbohydrate potential but likely promote carbon decomposition.
Published: 25 May 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 80-90; https://doi.org/10.20961/stjssa.v19i1.58328
Tomato production is significant as the demand is increasing in time to meet food security and human nutrition as well. The purpose of the study was to investigate the effect of water and fertilizer application in greenhouse tomato growth index, yield and quality using an intelligent drip system to achieve improved yield by minimizing the fertigation. A randomized block design was used in ten treatments including control (CK-W4N4,K4) consisting four level (W1-65%, W2-75%, W3-85%, W4-100%) each of water field capacity and four-level Urea-Potash (N1,K1-245,490, N2,K2-350,700, N3,K3-455,910, N4,K4-80,100 kg ha-1) combinations. Data obtained were analyzed by a general linear model and developed a regression model for yield. The results showed, the highest tomato yield was 103.16 t ha-1 in T8-W3N2K1 significantly influenced by the treatment, which is found 2% greater compared to the CK (100.92 t ha-1). The highest leaf area index (5.21) was obtained with T7-W3N1K3 produced improved yield. The highest fruit weight (288.77 g fruit-1) and fruit diameter (85.33 mm) obtained with T2-W1N2K2 had no significant influence on tomato yield. The model delivered a paramount prediction (r2 = 0.82) of tomato yield. In conclusion, results showed the intelligent drip system could be used to minimize inputs to improve tomato production.
Published: 25 May 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 60-72; https://doi.org/10.20961/stjssa.v19i1.58560
Climate change has imposed major uncertainties on food and water security in Bangladesh. Understanding the recent changes in potential yield and water productivity of major crops is essential to formulate effective adaptation strategies under climate change conditions. This study assessed the yield and water productivity variation of dry season Boro rice with different irrigation regimes and transplanting dates over long-term (1985-2017) in a south-western District (Khulna) of Bangladesh using AquaCrop model. The evaluation of yield and water productivity was done for five transplanting dates (1st & 15th of December and January and 1st of February) and four irrigation strategies (fixed short- and long-interval irrigations, and measured irrigation with ‘low stress, low dose’ and ‘high stress, high dose’). Transplanting rice seedlings on 1st December results in 17% yield increase compared to transplanting on 1st January. There are significant (p£0.05) increasing trends of attainable biomass, grain yield and water productivity of Boro rice. The measured irrigation practices are superior to the traditional fixed irrigation practices. The ‘low stress, low dose’ irrigation strategy increases irrigation-water productivity and provides an opportunity to exploit the possible benefits of climate change. Adjustment of the irrigation strategy can reduce water usage without reducing the potential yield of Boro rice with an eventual increase in irrigation-water productivity, while adjustment of the transplanting date can increase potential yield with additional water usage. These findings would help develop suitable agricultural adaptation strategies for irrigated rice cultivation under climate change.
Published: 23 May 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 52-59; https://doi.org/10.20961/stjssa.v19i1.58709
Present work aimed to assess the impact of pyrogenic effect on the flora, and quality and health of soils of the Utrish Reserve. Studies performed on the territory of reserve within a month after the fire revealed that the areas showed varying degrees of damaged characteristics due to catastrophic fire. The entire damage was recorded in a 40-hectare region, while the vegetation on another 26 hectares of the reserve was damaged to a lesser extent. In total, 4,800 trees were eliminated, 73% of them belonged to rare and endangered species, such as Junipers (Juniperus spp.), Mt. Atlas mastic trees (Pistacia mutica), and Pitsunda pines (Pinus brutia var. pityusa). In the areas of severe disturbance, the soil surface was covered with a constant layer of ash two weeks after the fire. As a result, there was an increase in the pH values, and the chemical composition of brown soil (Cambisol) was determined after the fire. There was also an increase in the organic carbon content and peroxidase activity. Catalase activity, which is sensitive to pyrogenic effects, decreased in all soil samples obtained at post-pyrogenic areas. The effect of fire on the biological state of soils may diminish over time, however, the restoration of the damaged ecosystems may take hundreds of years. The results of this study can be used in assessing the damage to ecosystems after the wildfires, as well as in developing methods to accelerate the restoration of soils after a fire impact.
Published: 19 May 2022
SAINS TANAH - Journal of Soil Science and Agroclimatology, Volume 19, pp 42-51; https://doi.org/10.20961/stjssa.v19i1.56441
Coffee is a national strategic commodity that contributes to Indonesia’s foreign exchange, but its productivity remains low due to cultivation on low potential land. This study aimed to determine the land suitability of endemic liberica coffee using two different methods and formulate recommendations for land management in Pinogu Plateau. Thirteen land units were surveyed, and soil samples were collected and analyzed in the laboratory to identify the land characteristics. Land suitability classes (LSCs) were compared by limiting factor and parametric methods. Analysis using the limiting factor method showed that the actual LSCs for liberica coffee consisted of moderately suitable (S2) and marginally suitable (S3) classes. Efforts for improvement could increase the potential of LSC to became very suitable (S1) and S2 classes. Meanwhile, the assessment with the parametric method indicated that the LSC consisted of S1, S2, and S3 classes. These results revealed that the parametric method provides more realistic land characteristics than the limiting factor method. Land management II or the land that had a little limiting factor turned out to be more dominant with the recommendation of adding P and organic fertilizer.