Research was conducted to evaluate the residual effect of burning and mechanical removal of sugarcane crop residue on
weed control and sugarcane growth and yield. In one study, crop residue was removed in December or January within
3 wk after sugarcane harvest. Mechanical removal of residue from the row top and placement in the row middle using
a Sunco Trash TigerH was compared with burning and a no removal control. Superimposed on each residue removal
treatment was tillage of row sides and middles in March and in May and a no-tillage program. Tillage efficiency in March
when sugarcane was emerging from the winter dormant period was not negatively affected when residue was removed
mechanically. Crop residue on the soil surface did not completely suppress winter weed emergence and growth. Based on
sugarcane and sugar yield averaged across locations and tillage programs, mechanical removal of residue was as effective as
burning. Sugar yield was reduced 7.9% when residue was not removed from the row top compared with burning or
mechanical removal. In another study, crop residue of sugarcane harvested in early December was burned or removed
mechanically from the row top 4 d after harvest and also mechanically in January, February, or March. Crop residue
ground cover of 79% in March on the row top where residue was not removed provided some suppression of winter weeds.
Sugarcane shoot population in April was reduced 16.1% when residue removal was delayed until March compared with
December. Averaged across tillage and no-tillage treatments in March, sugarcane yield did not differ when residue was
removed by burning in December compared with mechanical removal in December or January. Delaying mechanical
removal of residue until February or March compared with residue removal in December decreased sugar yield an average
of 13.1%
Research was conducted to evaluate the residual effect of burning and mechanical removal of sugarcane crop residue onweed control and sugarcane growth and yield. In one study, crop residue was removed in December or January within3 wk after sugarcane harvest. Mechanical removal of residue from the row top and placement in the row middle usinga Sunco Trash TigerH was compared with burning and a no removal control. Superimposed on each residue removaltreatment was tillage of row sides and middles in March and in May and a no-tillage program. Tillage efficiency in Marchwhen sugarcane was emerging from the winter dormant period was not negatively affected when residue was removedmechanically. Crop residue on the soil surface did not completely suppress winter weed emergence and growth. Based onsugarcane and sugar yield averaged across locations and tillage programs, mechanical removal of residue was as effective asburning. Sugar yield was reduced 7.9% when residue was not removed from the row top compared with burning ormechanical removal. In another study, crop residue of sugarcane harvested in early December was burned or removedmechanically from the row top 4 d after harvest and also mechanically in January, February, or March. Crop residueground cover of 79% in March on the row top where residue was not removed provided some suppression of winter weeds.Sugarcane shoot population in April was reduced 16.1% when residue removal was delayed until March compared withDecember. Averaged across tillage and no-tillage treatments in March, sugarcane yield did not differ when residue was
removed by burning in December compared with mechanical removal in December or January. Delaying mechanical
removal of residue until February or March compared with residue removal in December decreased sugar yield an average
of 13.1%
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