scholarly journals Characteristics and management of brackishwater pond soil in South Sulawesi Province, Indonesia

Author(s):  
Akhmad Mustafa ◽  
Erna Ratnawati ◽  
Muhammad Chaidir Undu
2014 ◽  
Vol 9 (1) ◽  
pp. 73
Author(s):  
Erna Ratnawati ◽  
Akhmad Mustafa

Spatial distribution of brackishwater pond soil has important role in the system of bioenvironment including brackishwater pond environment. This research was aimed to determine the spatial distribution of some chemical characteristics of an acid sulfate soil-affected brackishwater pond in coastal area of Luwu Regency South Sulawesi Province, Indonesia. ALOS AVNIR-2 images (acquisition 16 May 2008, 16 October 2008, 17 September 2009) were integrated with Indonesian Topographic maps to obtain base map. Sampling soil points were determined by simple random sampling in 104 points for two different soil depths i.e. 0-0.2 m and 0.5-0.7 m. A total of 18 soil chemical characteristics was measured in the field and analyzed in the laboratory. Geostatistic using kriging method in the ArcGIS 9.3 software was used to interpolate the data. The results of this study indicated that in general pond soil chemical characteristics in Luwu Regency could be categorized with high variability or relatively heterogenic wi th the value of var iation coefficient more than 36%. The soil characteristics that explain acidity had shown similar pattern in spatial distribution as well as other soil characteristics with soil nutrient. The high value of pH and low value of PO4 were generally found in the northern part of Luwu Regency, including East Lamasi, East Walenrang, Bua, and Ponrang Subdistricts. It is recommended that soil management in brackishwater ponds of Luwu Regency could be based on soil chemical characteristics so its could improve the production through minimizing the input, increasing carrying capacity, and avoiding environmental degradation.


2016 ◽  
Vol 2 (1) ◽  
pp. 117
Author(s):  
Akhmad Mustafa ◽  
Erna Ratnawati

Kabupaten Pinrang memiliki tambak terluas di Provinsi Sulawesi Selatan dan ditetapkan sebagai pusat pengembangan produksi udang windu, namun produktivitas tambaknya masih relatif rendah. Oleh karena itu, dilakukan penelitian yang bertujuan untuk mengetahui faktor-faktor dominan yang berpengaruh terhadap produktivitas tambak di Kabupaten Pinrang. Sebagai peubah tergantung adalah produktivitas tambak, sedangkan sebagai peubah bebas adalah faktor-faktor status pembudi daya tambak, kondisi tambak, pengelolaan tambak, kualitas air tambak, dan kualitas tanah tambak yang masing-masing terdiri atas 9, 11, 31, 11, dan 17 peubah. Regresi berganda dengan peubah boneka digunakan untuk menganalisis data untuk memprediksi peubah tergantung. Hasil penelitian menunjukkan bahwa produktivitas tambak di Kabupaten Pinrang rata-rata 499 kg/ha/musim. Produktivitas tambak di Kabupaten Pinrang masih dapat ditingkatkan melalui penambahan tenaga kerja dan pemisahan saluran pemasukan dan pengeluaran air serta penambahan tinggi pematang agar tinggi air juga dapat ditingkatkan. Aplikasi pupuk urea pada saat persiapan tambak dan aplikasi urea dan SP-36 sebagai pupuk susulan dapat meningkatkan produktivitas tambak, sebaliknya aplikasi KCl pada saat persiapan tambak dapat menurunkan produktivitas tambak. Pengurangan kapur susulan dan peningkatan pupuk yang mengandung fosfat dapat meningkatkan produktivitas tambak.Pinrang Regency has largest brackishwater ponds in South Sulawesi Province and determined as a centre for developing of shrimp production. However, their brackishwater ponds productivity is still low. Because of that, it was conducted research with aims to know the dominant factors that effect on the productivity of brackishwater pond in Pinrang Regency. As a dependent variable in this research was productivity of brackishwater ponds. Independent variables were grouped into: (a) farmer status factor, consist of 9 variables; (b) pond condition factor, consist of 11 variables; (c) pond management factor, consist of 31 variables; (d) water quality factor, consist of 11 variables and (e) soil quality factor, consist of 17 variables. Multiple regressions with dummy variable were used to analyze the data in predicting dependent variable. The results showed that the productivity of brackishwater pond in Pinrang Regency was 499 kg/ha/cycle in average. The productivity of brackishwater pond could be increased through addition of labor and separating of outlet and inlet canals and making higher the pond dyke for increasing the water depth. Application of urea fertilizer as an initial fertilizing and application urea and SP-36 as a continuing fertilizing could be increased the brackishwater pond productivity. In contrary, application of KCl fertilizer as an initial fertilizing would be decreased the brackishwater ponds productivity. Decreasing of continuing liming and increasing the fertilizer containing phosphate would be increased the brackishwater ponds productivity in Pinrang Regency.


2020 ◽  
Vol 8 (2) ◽  
pp. 128-149
Author(s):  
Dini Maulana Lestari

This paper will discuss about the immaterial costs and production yields at one of the refined sugar factory companies in Makassar, South Sulawesi. The theory is based on the fact that Immaterial is a cost that is almsgiving, meaning costs that are outside of the basic costs of the company in producing production, so this research aims to find out: (1) what is the production cost needed to produce this production, (2) the maximum level of production at company from 2013 to 2017. This type of research is a quantitative study because it uses a questionnaire in the form of values ​​that are processed using the marginal cost approach formula. The results of the analysis show that (1) the maximum level of production costs occurred in 2016 amounting to 6,912 with an Immaterial cost of Rp. 2,481,796,800 and the total production produced is 359,077.3 tons (2) The required workforce with the total production produced is 359,077.3 tones of 180 people including the maximum production point which means that the lowest value is achieved (optimal).    


2018 ◽  
Vol 2 (2) ◽  
pp. 182
Author(s):  
Adnan Hamzah ◽  
Muhammad Djafar Saidi ◽  
Amir Ilyas

<p>This study aimed to see the effectiveness of using force majeure along with the challenges the attorney might encounter against taxation crime. It was a normative study with statute and case approaches. The study was conducted in High Prosecutor General office in Makassar and Directorate General of Tax South Sulawesi. The result showed that the force majeure by attorney against taxation crime might be applied in the form of detention to complete particular documents and conduct an additional investigation before filing the case to the court. The challenges in implementing the force majeure by attorney against taxation crime might come from legal and non-legal factors. The former involved confusing phrase of ‘investigation termination’ by attorney and the light different view on state financial losses between under Corruption Law and under General Act of Taxation, and the later involved the professionalism of attorney and information transparency. </p>


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