Subdual of stationary thresher machine for chopping resudies

INTRODUCTION 

he amount of crop residues increased all over the world due to 

increasing in cereal crops production. Annual crop residues 

amounted to 40 million tons. Crop residues contains such 

elements are bonded together by energy rich bond. From an 

environmental pollution point of new, residues can be reclined to be 

changed into biogas and compost.  

Res., Ag. Eng. Res. Institute. Giza  Egypt. 

T

Misr J. Ag. Eng., 24(3): 504-521 

FARM MACHINERY AND POWER  

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 Misr J. Ag. Eng., July  2007 

  

                            

                                                        

 

 

505 

   

Removal of agricultural residues for framers by burn is wrongly way to 

make pollution surroundings. The best way to remove from agricultural 

residues cutting and chopping for next operation of waste recycling in 

different industry such as making compost and improvement soil 

properties, animal feeding, energy source (direct burning, biogas 

generation) compressed wood and the field of industrial application.   

Rice and corn are considered among the most important agricultural 

crops in Egypt. The cultivated areas in Egypt ranged between 1.9 to 2.10 

million feddans yearly and about 1.6 million feddans yearly for corn and 

rice, respectively (Ministry of agriculture 2000 ). Crop residues are 

considered the most critical problems facing the Egyptian farmer, 

especially after harvesting the crop. Egyptian farmers burn yearly about 

2-3 ton/fed. Of rice straw and 5.87 million ton of corn stalks respectively 

as a means for disposing it and to save time for preparing the land of the 

next crop (Helmy et al., 2003). Lashin et al. (1993) found that chopping 

corn stalks with the length of 3 cm was found to be better for growing 

lambs.  Luis et al. (1993) found that the cutting lengths of residues 

between 0.5 to 3 inches (1.27 to 7.62) are recommended for composting 

the residues.