| 摘要 |
<p>This invention is related to a Conservation Tillage Combine for deep tilling of soil up to 250 mm depth and simultaneous application of fertilizers and micro-nutrients in bands directly into the root zone of crops at the tilling depths. It pulverizes the clods, consolidates the soil and leaves a completely leveled field surface after operation either in bare fields or fields with chopped/anchored rice or wheat residues, thereby making it the most appropriate machine for soil cultivation in laser leveled fields. In deep soil loosening conservation tillage combine, the best mounting angle of inclined leg (45° rake angle) winged chisel tines should be limited to 45° imaginary V-lines with the central longitudinal axis of the frame. This positioning of winged chisel tines has resulted in minimum draft, maximum area of soil disturbance and minimum specific draft/resistance. Further, by adjusting the spacing between the tines such that they could operate within the tractor rear tyres, the developed machine could be used as a controlled field traffic machine for better traction and for avoiding recompaction of tilled soil. It has been designed to cultivate the soil for root bed preparation and deep fertilizer placement at the tilling depths immediately behind the rear wheels of a tractor, and the operation eliminating recompaction of tilled soil with improved traction of tractor wheels which travel on untilled soil. [Fig. 1(a)]</p> |
