Potassium is one of the primary macro nutrients along with N and P nutrients, which plants need in large quantities. Lack of K nutrients, one of which can inhibit photosynthetic transport to plant seeds. The availability of K nutrients in paddy soil varies greatly depending on the chemical properties of other soils. This paper aims to evaluate the nutrient K characteristics of paddy fields, the K contribution from irrigation water and harvested straw, and the response of fertilization to rice yields. The availability of K nutrients, apart from being influenced by clay mineral composition, clay content, organic C and soil CEC, is also influenced by N fertilization, soil pH, exchangeable of Ca and Mg, and N-total. The content of potential K and exchangeable of K increases in paddy fields which are further east of Java Island because they have soil with parent material that is rich in potassium minerals. The content of exchangeable K is very closely related to the potential K with R2 = 0.53 (n = 73). Based on the map of the nutrient status of K rice fields with a scale of 1:250,000 in 23 provinces in Indonesia, it is known that most of the paddy fields have moderate K status at 37% and high 48%. The K content in paddy soil can be contributed by irrigation water as much as 7-74 kg K/ha/season. If all of the remaining rice straw from crop yields is returned to the field, the K nutrient requirements for rice plants in the medium and high K nutrient status fields have been fulfilled. The response to K fertilization in rice plants was only visible when the exchangeable K content < 0.10 cmol(+)/ kg. The policy implication of this paper is that K fertilization is focused on paddy fields with low K content, the effectiveness of K fertilization can be increased by returning rice straw from crop residues and proper N fertilization.

WeRise is a rainfed specific technology (IRRI-JIRCAS-IAARD) that helps farmers to determine planting time according to rainfall distribution and specific variety. The research was conducted in West Nusa Tenggara (WNT) and Central Java at 2018, involving 15 farmers in each location. It compared planting time according to WeRise’s recommendation (1) and farmers’ practice (2), using the same variety, namely Inpari 41, which is a specific high yielding variety for rainfed. It was analyzed using the T test at the 5% level. The best WeRise’s recommendations in WNT was ± 1 December 2018, while farmers’ planting time was carried out on ± 15 November 2018. Meanwhile, in Central Java WeRise’s recommendations was same as the farmers, on ± 15 November 2018. However, testing was still carried out following the second / third alternative WeRise recommendation even though the yield prediction were lower (1 December 2018). The yield from WeRise treatment and farmer practices was not significantly different with an average yield of 5.01 t ha-1 for the WeRise treatment and 4.84 t ha-1 for farmer practice in Central Java and an average yield of 5.44 t ha-1 for the WeRise treatment and 5.65 t ha-1 for farmer practice in WNT. This means that in this initial validation WeRise had shown a fairly good performance with equivalent yield to farmers. However, it was suspected that Werise’s prediction in Central Java was still too low or 54% lower than the actual yield, while the prediction in NTB reaches 102%.

Kepahiang Regency is ones of largest producing robusta coffee on Bengkulu Province. Many business actors are involved in the activities of this product supply chain system, they are supposed to be lower income This research tried to explain in a detailed and systematic description so that the three activities in the robusta coffee supply chain system in Kepahiang Regency. Snow ball sampling method was used to determine actors sample in Supply Chain System of Robusta Coffee. Secondary data was production, land size, and productifity were collected from Central Bureau of Statistics, Regional Agriculture Office of Kepahiang Regency and coffee consumption was collected from International Coffee Organization. Primary data was product, price, quantity, delivery time, payment, and delivery services. Data analysis used Hayami et al model for value added, share margin for financial flow, flow diagram for information and product flows. The results showed that there are three patterns of robusta coffee supply chain in Kepahiang Regency, namely Pattern 1: Coffee farmers –Village collectors – Regency Collectors-Coffee Shop Palembang. Pattern 2: Coffee farmers –Village collectors – Regency collectors 1– Coffee company- Exporter. Pattern 3: Coffee farmers - Regency collectors 2 - Coffee company - Exporter. Generally, business activities in the supply chain in namely 1) categorization of the quality and quantity of large products in the supply chains 2, and 3, 2) Flow of price information is obtained from business actors downstream as price maker to actors upstream as price taker in the supply chain system, and 3) financial flow and the largest marketing margin in supply chains 2, 3 and 1 respectively,and 4) the payment system being carried out in three, namely cash, credit and payment. Value added is received by company was Rp12.151 per kgs since it was grading treatment for gaining better product quality. The development of processing industry of robusta coffee could increase added value of product and income of actors in Supply Chain System, then contribute to regional economy.

Budaya nasional dalam setiap negara perlu diperhatikan karena dapat menjadi salah satu faktor agresivitas pajak. Dalam penelitian ini beberapa dimensi diantaranya jarak kekuasaan, individualisme, ketidakpastian dan maskulinitas seseorang bisa saja melakukan tindakan agresivitas pajak. Akan tetapi jarak kekuasaan, individualisme, ketidakpastian dan maskulinitas dapat berubah ketika ada korupsi di suatu negara tersebut. Tujuan dari penelitian ini adalah untuk melihat pengaruh jarak kekuasaan, individualisme, ketidakpastian, dan maskulinitas dengan menambahkan variabel moderasi yaitu korupsi terhadap seseorang untuk melakukan tindakan agresivitas pajak. Dalam penelitian ini data yang digunakan adalah data sekunder, yang diperoleh dari World Bank Enterprise Survey (WBES) pada tahun 2006 sampai dengan tahun 2018. Dalam menganalisis data tersebut menggunakan Multinomial Logistic Regression (MLR). Hasil studi ini menunjukkan bahwa maskulinitas berpengaruh terhadap agresivitas pajak namun jarak kekuasaan, individualisme dan ketidakpastian tidak terhadap agresivitas pajak. Selain itu hasil studi ini menunjukkan bahwa korupsi mempderasi pengaruh antara maskulinitas dengan agresivitas pajak.

Abstrak
Penelitian ini bertujuan untuk mengetahui pengaruh tingkat (1) perputaran kas terhadap rentabilitas ekonomi, (2) perputaran piutang terhadap rentabilitas ekonomi, (3) perputaran kas dan perputaran piutang terhadap rentabilitas ekonomi. Subjek dalam penelitian ini adalah Koperasi Kredit Tuke Ler Hewokloang dan objeknya adalah perputaran kas, perputaran piutang dan rentabilitas ekonomi. Jenis data yang diperlukan dalam penelitian ini adalah data kuantitatif yang dikumpulkan dengan teknik dokumentasi dan dianalisis dengan menggunakan analisis regresi linear berganda. Hasil penelitian menunjukan (1) tidak ada pengaruh tingkat perputaran kas terhadap rentabilitas ekonomi, (2) Ada pengaruh dan tidak signifikan antara tingkat perputaran piutang terhadap rentabilitas ekonomi, (3) ada pengaruh dan signifikan antara tingkat perputaran kas dan perputaran piutang terhadap rentabilitas ekonomi pada Koperasi Kredit Tuke Ler Hewokloang.
 
Kata kunci: Perputaran Kas, Perputaran Piutang, Rentabilitas Ekonomi.

Human resources are the most important thing in every organization or agency. The resources possessed by each employee in the form of energy, talent, and creativity as well as efforts for the progress of the organization are different, this is influenced by several aspects such as aspects of education, economic aspects and aspects of motivation. This research was conducted at the Lahewa District Head Office, North Nias Regency. In conducting research the authors use quantitative methods. The sample in this study were all employees at the Lahewa District Office in North Nias Regency totaling 22 people. Based on the hypothesis testing criteria it turns out that Ha is accepted and Ho is rejected where Ha is a relationship and Ho is not a relationship, because t arithmetic = 2,335> t table = 2,052 so that it can be stated that there is a significant relationship of Motivation (X) to Work Performance (Y) in Lahewa District.

Desain lansekap kota merupakan suatu pendekatan dalam mendesain kota yang memberikan dampak positif bagi penduduk kota dengan menyediakan lingkungan yang layak huni. Lansekap kota hadir dalam berbagai bentuk,salah satunya adalah taman kota. Taman kota adalah salah satu fasilitas yang disediakan oleh suatu kota dan penduduknya dapat melakukan beberapa aktivitas di dalamnya. Sebuah taman kota juga berfungsi sebagai landmark kota. Kota Salatiga memiliki beberapa taman dengan fungsi rekreasi tetapi tidak banyak taman kota yang tersedia berfungsi sebagai ruang publik. Salah satunya adalah taman yang terletak di Kecamatan Tingkir Kota Salatiga, yaitu Taman Tingkir. Tujuan penelitian ini adalah untuk menerapkan teknologi komputer rancang bangun 3D dalam mendesain ulang (redesign) taman Tingkir dengan konsep Urban landscape design. Sebuah taman kota yang fungsional, estetis, dapat menjadi ruang publik yang lebih baik dan bisa menjadi tengara (landmark) di wilayah tersebut. Metode pengembangan produk Virtual 3D Desain Taman Kota menggunakan 5 langkah ADDIE (Analysis, Design, Development, Implement and Evaluation). Dalam kepentingan akademik penelitian ini menghasilkan eksperimentasi teknologi komputer grafis dalam pengembangan desain taman kota.

Remote temperature monitoring is needed in hazardous area conditions or fast data retrieval is needed without being limited by distance. This condition can be overcome by monitoring and measuring the temperature from a remote location using internet technology that is currently developing, namely the Internet of things. There are many implementations of remote temperature monitoring systems, but the measurement results of these sensors sometimes have very significant differences even for measuring the temperature of the same object. This study aims to analyze the implementation of an effective and efficient remote temperature monitoring system. The temperature measurement process uses the LM35 and MLX 90614 sensors based on Internet of things technology using the Message Queue Telemetry Transport (MQTT) protocol. After obtaining the results of temperature measurements using different sensors, the measurement results are analyzed and compared with standard temperature measuring instruments to obtain an effective and efficient implementation. Based on the analysis, the results of temperature measurements using the MLX 90614 sensor are effective and efficient sensors.

This research, in general, aims to improve the learning outcomes of class X MIPA 4 students of MAN 1 Grobogan in the 2018/2019 academic year by implementing multimedia learning. And specifically it aims to make students able to achieve the learning objectives by producing a minimum KKM score of 70 and at least 80% of the total students are able to reach this minimum limit. The research method used in this research is the Classroom Action Research Method or better known as the Classroom Action Research (PTK) method. The PTK method is a process of assessing learning problems in the classroom through self-reflection in an effort to solve these problems by taking planned actions in real situations and analyzing any effects of these treatments. The results of research conducted on class X MIPA 4 MAN 1 Grobogan, the application of multimedia presentation learning media on the basic laws of chemistry and stoichiometry with the concept of enjoyful learning can improve student learning outcomes. That the application of multimedia presentation learning media can improve student learning outcomes in chemistry, especially in the material of the basic laws of chemistry and stoichiometry

Multimedia learning software development requires design methods, development tools, examination models and proficiency in Information Technology systems. It is necessary to formulate a Holistic Method which considers all related aspects in order to guide the quality of good design in designing Multimedia Learning. Implementing the findings of the Holistic Method formulation to build multimedia learning with good design quality. This study formulates the stages of multimedia development which include: Creative Brief, Design, Material Preparation, Compiling, Testing, Distribution. The multimedia software development process will be guided by 15 guiding elements which are grouped into 5 elements, include : content, appearance, utility aspect, user caracter, and didactic. These guiding elements are used to produce good quality learning multimedia designs. The methodology is called Holistic Multimedia Development Model (HMDM).