AGRICOLA <p>The <strong>AGRICOLA Journal&nbsp;</strong>is published from Eastern Indonesia, Merauke - Papua with registered number p-ISSN: 2088-1673, e-ISSN 2354-7731. The Agricola Journal includes integrated agricultural scientific works including agrotechnology, agribusiness agriculture, agriculture engineering, animal husbandry, and aquatic resources and management. Agricola is published twice a year (March and September). Agricola's journal will always try to give the best.</p> <p><a title="p-ISSN" href=";1298116525&amp;1&amp;&amp;" target="_blank" rel="noopener">p-ISSN: 2088-1673</a> I <a title="e-ISSN" href=";1386207868&amp;1&amp;&amp;" target="_blank" rel="noopener">e-ISSN: 2354-7731</a></p> Universitas Musamus, Merauke, Papua en-US AGRICOLA 2088-1673 Study Analysis of Paddy Field Meraoke Variety, Dyah Suci dan Ciliwung With Revenue Cost Ratio (R/C Rasio) <p><span class="fontstyle0">This research was aims to analyze the feasibility of paddy varieties Meraoke, Dyah Suci and<br>Ciliwung in paddy fields by using the Revenue Cost Ratio (R/C ratio) in the district of Merauke. The<br>research was conducted in Marga Mulya village Semangga District starts from September 2012 to<br>January 2013. The type of data in this research is the primary and secondary data. Data analysis<br>performed in this study is an analysis of the feasibility of farming by using the Revenue Cost Ratio<br>(R/C ratio). Results of the analysis of the feasibility of using a proportion of farm receipts and cost<br>(R/C ratio) with more than 1,5 criteria. Meraoke rice varieties with a variety of inorganic treatment<br>with treatment eligibility level or value of the R/C ratio of 1.55 which is lower if compared with the<br>rice varieties of organic semi Meraoke treatment value of R/C ratio of 2.06 and the Dyah Suci<br>treatment of rice varieties inorganic value of R/C ratio obtained at 2.70 and varieties of organic semi<br>commission of the Dyah Suci R/C ratio of 2.37 obtained rice varieties and inorganic treatment<br>Ciliwung R/C ratio of 3.45 and obtained treatment Ciliwung organic semi R/C ratio obtained by 2.14.</span> </p> Ovilia Nivo Ringan Untari Untari Ineke Nursih Widyantari ##submission.copyrightStatement## 2018-09-24 2018-09-24 8 2 51 62 Blower Modification to Increase Bran Removal on Rice Polisher <p><span class="fontstyle0">The purpose of this research is to design the auxiliary blower that can be used to overcome the<br>blockage on the bran expenditure correct and to know the speed of the blower. The method of this<br>research consisted of the first step (literature study, proposal masking, equipment and material supply<br>and design the auxiliary blower tool), the second stage is the making of bran blower auxiliary tool, and<br>third step is the test (measuring wind speed in the blower using anemometer, comparing the level of<br>cleanliness of rice from rice bran, and recapitulation of tool making). The results obtained in the field<br>conditions 3.5-inch pulley of 16.6 m/s has a moderate wind speed so that groats are not much wasted.<br>The percentage of whole rice after using the blower on the second observation that is using the 2.5-<br>inch pulley of 98.12%, the third using 3.5-inch pulleys of 97.56%, the fourth using 4.5-inch pulleys of<br>95.70% and treatment before using blower 89.59%. Based on the recapitulation of the tool making, the<br>total cost of making the tool are Rp.2.505.500.</span> </p> Ganda Guna Ngumbara Andriyono Andriyono Yosefina Mangera ##submission.copyrightStatement## 2019-09-28 2019-09-28 8 2 63 68