Effect of Ball Milling Under Various Conditions on Several Physicochemical Properties of Rock Phosphate Fertilizer

A laboratory study was conducted to identify the effects of milling under various conditions, including use of water and potassium as milling lubricants, on several physicochemical properties of rock phosphate fertilizer. The identified properties were the XRD patterns, particle size distribution, surface area, and NaHCO3-extractable P of the fertilizer. Milling for 2 hourssignificantly reduced particle size, promoted amorphization,increased surface area and amount of extractable P in 1N NaHCO3 of rock phosphate fertilizer, with those effects for dry milling were much greater than for wet milling. Wet milling and use of additives (KCl and K-feldspar) minimized the occurrence of agglomeration during milling process. Although further tests in soil-plant system are required, dry milling may be recommended as a simple method for manufacturing an agronomically effective P + K fertilizer

Pengukuran Kualitas Permukiman Hubungannya Dengan Tingkat Kesehatan Masyarakat Di Kecamatan Sragen: Upaya Awal Untuk Peningkatan Kapasitas Masyarakat Dalam Strategi Pengurangan Resiko Penyakit

Penelitian ini bertujuan untuk mengetahui hubungan antara kualitas kawasan permukiman dan kesehatan masyarakat di Kecamatan Sragen dan merancang skenario untuk meningkatkan kapasitas penduduk dalam mengurangi resiko penyakit. Penelitian ini menggunakan beberapa parameter yang dikumpulkan dengan interpretasi citra resolusi tinggi. Semua parameter dianalisis dengan GIS menggunakan metode pembobotan untuk mengukur kualitas pemukiman. Setelah itu, analisis statistik digunakan untuk menyediakan hubungan antara kualitas pemukiman dan kesehatan masyarakat. Berdasarkan analisis korelasi, ada hubungan yang signifikan antara kualitas pemukiman dan kesehatan masyarakat. Kualitas termiskin pemukiman terletak di Karangtengah. Di daerah, terdapat 2,10 penyakit dalam setiap 100 orang. Berdasarkan analisis tersebut, dapat disimpulkan bahwa peningkatan kualitas permukiman dapat secara signifikan mengurangi risiko penyakit. Meningkatkan kapasitas masyarakat untuk meningkatkan kualitas permukiman adalah isu penting dalam kasus ini. Ada tingkat kapasitas yang berbeda dari masyarakat karena perbedaan kondisi sosial ekonomi terutama untuk tempat tinggal perkotaan dan pedesaan. Kata-kata kunci: Penginderaan Jauh, Kualitas Settlement, Kapasitas, Pengurangan Risiko Penyakit dan Kesehatan Masyarakat

Masalah Pembatasan Ekspor Sampah Elektronik : Perspektif Konvensi Basel dan Gatt/wto

Nowadays, there are momentum of states to develope domestic legislation restricting e-waste exports. Basel Convention prohibits the parties to export hazardous wastes to other countries and also obliged to reduce it. These restriction could take many forms, including a partial or total ban on e-waste exports, an e-waste export licensing system, a quota on e-waste export. These restrictions will be challenged before a WTO Panel due to inconsistent with GATT/WTO especially Article XI:1;XIII; I:1. E-waste restrictions could be justified under Article XX (b) and (g) of the GATT, but it is not easy to fulfill elements of the both paragraph. A word “necessary” of Article XX (b) and “relate to” of Article XX (g) will be tested by WTO panelis

Hambatan Teknis di Bidang Perdagangan dalam Kaitannya dengan Kasus Tembakau Indonesia-amerika Serikat

Abtract Unfair trade practices often happen in International trade inter alia non tariff barrier. Technical barrier is a part of non tariff barrier. WTO members esepcially developed countries often do this measure. Its classical ground is to protect life or health of human, animal and plant. This measures sometime is aimed at protecting domestic industries against import attact. It happens in US-Indonesia case on Indonesia Clove Cigarette marketed in US and regarded as a threat to like cigarette producers. Due to protection of human health, US Government restricted Indonesia Clove Cigarette while there was a light cigarette as like product at the same market. This measure has no legal basis and unproved. Hence, US Government Policy of restricting Indonesia Clove Cigarette should be revoked and open market access Indonesia Clover Cigarette and another cigarette

Prinsip Most Favoured Nations Dan Pengecualiannya Dalam World Trade Organization (WTO)

Most Favoured Nations principle require the WTO members for not doing discrimination to products from other WTO members for both tariff bound products and non tariff bound products. This principle is the heart of GAIT, GATS dan TR/Ps. Thing that relevant in term of implementation of the principle is like product application which is examined in certain cases either in the panel level or in the Appelate Body level. Nevertheless, there are exceptional clauses for not applying the principle. They are Article XX, XX/, XXIV dan XXV(5) in which Article XX(b) and (g) are often used by WTO members as a reasonable grounds to protect human, animal, plant life or health and to protect exhaustable natura

Analysis of Susceptance Storey Level Damage of Coral Reefs in Territorial Water of Archipelago in Karimunjawa by Using Geographical Information System

This research aim to determine susceptance storey level damage of coral reefs in Territorial Water of Archipelago of Karimunjawa. Method which used in this research is special data analysis which in the form of data of sekunder by using Geographical Information System. Pursuant to analysis known that research area there are six especial stressor which menace coral reefs for example: Port, Airport, Center Dive, Coastal Wisata, Resident, and Appliance Catch. Pursuant to spasial analysis which have can be determined that equal to 69.50% from entire coral reefs research area in a condition do not susceptance, namely there are in territorial water region of Island: Kembar, Parang, Kumbang, Katang, Nyamuk, Krakal Besar, Krakal Kecil, Geleang, Burung, Bengkoang, Menyawakan, Cemara Besar, Cemara Kecil, Sintok, Gundul, Cendikian, Genting, Seruni, and Sambangan. As for the rest equal to 30.50% enough natural rentan of damage, there are at territorial water of islands owning high resident activity storry level, namely around in Island: Kemujan, Karimunjawa, Menjangan Besar, and Menjangan Kecil

Use of Soil Ameliorant And Inorganic Fertilizer to Increase Soil Fertility Phosphorous Concentrations in Plant Tissue, Growth and Yield of Shallot in Dry Land

Sub-optimal land use including dry land in West Nusa Tenggara (NTB) has not been optimal due to various land biophysical constraints such as low soil fertility, physical conditions with rough soil texture, and uncertain water availability, so efforts are needed to improve the land condition. . Shallots (Allium ascalonicum L.) is one of the vegetables that have a high enough potential to be developed in the land. The purpose of this study was to determine the interaction of various soil enhancers and doses of inorganic fertilizers on growth, tuber yield, and P content of shallot plants in suboptimal land. The method used in this research is the experimental method. The experimental design used was a Randomized Block Design which was arranged in a factorial design consisting of two factors. The first factor is a soil amendment, consisting of 4 types, namely: P0= without soil ameliorant; P1= 20 tons ha-1 manure; P2= 5 tons ha-1 biochar; P3= 10 tons ha-1 mushroom baglog waste. The second factor was the dose of NPK fertilizer, consisting of N1=150 kg ha-1; N2 = 300 kg ha-1; N3=450 kg ha-1. Each treatment combination was repeated 3 times. The results showed that there was an interaction between soil amendments and the dose of NPK fertilizer on organic C and soil CEC. But there was no interaction between the growth and yield of shallot bulbs. Soil ameliorant and dose of NPK fertilizer alone affected growth, namely the height and number of leaves of shallot plants. The best treatment for tuber yield was obtained in a combination of an application of 20 tons ha-1 of manure and 450 kg ha-1 of NPK fertilizer. Likewise with the P concentration in the onion plant tissue.Pemanfaatan lahan kering di Nusa Tenggara Barat (NTB) belum optimal disebabkan oleh berbagai kendala biofisik lahan seperti tingkat kesuburan tanah yang rendah, sehingga diperlukan upaya untuk memperbaiki kondisi lahan tersebut. Bawang merah (Allium ascalonicum) merupakan salah satu sayuran yang memiliki potensi  yang cukup tinggi untuk dikembangkan di lahan tersebut. Tujuan penelitian ini adalah untuk mengetahui interaksi berbagai pembenah tanah dan dosis pupuk anorganik NPK terhadap kadar P pertumbuhan, dan hasil umbi tanaman bawang merah. Metode yang digunakan dalam penelitian ini adalah metode eksperimental. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) yang ditata secara faktorial yang terdiri atas dua faktor. Faktor pertama adalah 4 macam pembenah tanah, yaitu: P0=tanpa pembenah tanah; P1=pupuk kandang 20 ton ha-1; P2= biochar 5 ton ha-1; P3=limbah baglog  jamur 10 ton ha-1;. Faktor kedua adalah dosis pupuk NPK, N1=150 kg ha-1; N2 = 300 kg ha- 1; N3=450 kg ha-1. Masing-masing kombinasi perlakuan diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa terdapat interaksi antara pemberian pembenah tanah dan dosis pupuk NPK terhadap sifat kimia tanah yaitu C-organik dan KTK tanah. Tetapi tidak ada interaksi terhadap pertumbuhan dan hasil umbi bawang merah. Pembenah tanah dan dosis pupuk NPK secara sendiri berpengaruh terhadap pertumbuhan yaitu tinggi dan jumlah daun tanaman bawang merah. Perlakuan terbaik untuk hasil umbi diperoleh pada kombinasi pelakuan pemberian pupuk kandang 20 ton ha-1 dan dosis pupuk NPK 450 kg ha-1. Demikian juga dengan kadar P di dalam jaringan tanaman bawang merah

Analysis of Susceptance Storey Level Damage of Coral Reefs in Territorial Water of Archipelago in Karimunjawa by Using Geographical Information System

This research aim to determine susceptance storey level damage of coral reefs in Territorial Water of Archipelago of Karimunjawa. Method which used in this research is special data analysis which in the form of data of sekunder by using Geographical Information System. Pursuant to analysis known that research area there are six especial stressor which menace coral reefs for example: Port, Airport, Center Dive, Coastal Wisata, Resident, and Appliance Catch. Pursuant to spasial analysis which have can be determined that equal to 69.50% from entire coral reefs research area in a condition do not susceptance, namely there are in territorial water region of Island: Kembar, Parang, Kumbang, Katang, Nyamuk, Krakal Besar, Krakal Kecil, Geleang, Burung, Bengkoang, Menyawakan, Cemara Besar, Cemara Kecil, Sintok, Gundul, Cendikian, Genting, Seruni, and Sambangan. As for the rest equal to 30.50% enough natural rentan of damage, there are at territorial water of islands owning high resident activity storry level, namely around in Island: Kemujan, Karimunjawa, Menjangan Besar, and Menjangan Kecil

Pricing Strategy for Quasi-public Forest Tourism Park Case Study in Gunung Pancar Forest Tourism Park, Bogor Indonesia

The dynamic of 3-parties conflict of interests (investor, local people and government) in having actual income from the nature tourism park business in Indonesia became worse since a “very progressive” Government Regulation on Forestry Related Services Tariff (so called PP 12/2014) was issued. On one hand, everybody agrees to improve the 17 years old tariff regulation of PP 59/1998. On the other hand, the “unclear reason” of the new tariffs in PP 12/2014 has shocked many parties and created many difficulties while implemented. This paper studies visitors' expenditures and their willingness to pay (WTP) for every recreation services scenario by using contingent valuation method (CVM) survey with open-ended eliciting questionnaire instrument. Regarding the characteristic of Gunung Pancar Forest Tourism Park (GPFTP) the method was used to justify a reasonable and eligible ticket pricing strategy at the GPFTP as a quasi-public recreation park. The survey has also specifically addressed the reasonable ticket-price that aligns with the financial assumption of investor's business plan and local people's economic activities. Results of the survey show that the continuum of visitors' WTP is ranging from 3.4 times (as the response to scenario-1) up to 12.7 times (as the response to scenario-5) of the recent ticket price. The WTP of scenario-2, 3 and 4 are ranging from 4.7, 6.2 and 7.5 times, respectively. Furthermore, the results of Tobit Regression Analysis show that seven important variables are positively correlated, while six variables are negatively correlated with the WTP