%0 Thesis
%9 Other
%A 0614071051, Trinita Manullang
%B Pertanian
%D 2016
%F eprints:17030
%I Universitas Lampung
%T PERFORMANCE TEST OF TEP UNILA TYPE RICE STRAW CHOPPER
%U http://digilib.unila.ac.id/17030/
%X Fertilizer is a strategic mean of agricultural production for agricultural producers  in improving productivity and quality of agricultural commodities. In order to  increase production, farmers use chemical fertilizers as a source of nutrients for  plants, on the other hand the use of chemical fertilizers continuously may  adversely affect soil quality. Alternative solutions to chemical fertilizers are  derived from rice straw compost. Compost is the result of decomposition of  organic material by microorganisms.  Processing straw into organic fertilizer cannot be separated from the processing  technology from preparing the raw material to the process of decomposition. Size  of raw materials is one of the factors that influence the decomposition process, the  smaller size of straw materials will make the decomposition process going faster  and faster, and it is because of the additional area material surface which attacked  by microorganisms. The reduction of straw size can be done by using rice straw  chopper. This research aims to test the performance of a chopper straw material.  Engine performance test results of the census enumeration straw shows best done  on the treatment of wet straw with moisture content of 76% and the engine speed  of 2000 rpm. Based on these treatments, the percentage of weight gained is  53.7%, 30.1%, and 16%, respectively for the size <3 cm, 3-5 cm, and >5 cm.  The best machine work capacity was obtained at the enumeration wet straw with  moisture content of 76% and engine speed of 2000 rpm. Under such treatment,  the machine work capacity is obtained 272.7 kg/hour with fuel consumption of  0.65 liters/hour.