TY  - SER
AU  - Samy M.Younis
AU  - Ghonimy,Mohamed I.
AU  - Baiomy,Magdy A.
AU  - Mohamed,Tarek H.
TI  - Techno-economic evaluation of a developed field crop residues chopper
KW  - Agricultural machinery
KW  - Economic aspects
KW  - Crop residues
N1  - Includes references
N2  - The current investigation was carried out at Tokgh Agricultural Engineering Station, Kalubia Governrate to evaluate the developed chopper (Mohamed et aL 2001) with three kinds of crop residues (rice straw, cotton stalks and maize stalks). The developed chopper was operated using KUBOTA tractor (model L3600) 37HP with seven levels of rotor speed from 1000 to 2200 rpm equivalent to (25 - 55 m/sec) and three levels of ratio between feeding roll speed to cutting rotor speed (1:10), (1:12.5) and (1:15). Productivity (Py), cutting lengths percentage (PIc). consumed energy (CE), operating costs. internal rate of return (IRR). net present value (NPV), and pay back period (PBP) were estimated to evaluate the developed chopper
UR  - http://nile.enal.sci.eg/EALE/2002/MJAE/1902/4/63.pdf
ER  -