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| Experimental study on paddy field mechanized conservation tillage in double-cropping areas in southern China |
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| DOI： |
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| Abstract: |
| In…Jiangxi， the…soil…characteristics…and…highly…intensive…utilization…caused…a…lot…of…complexity…and…
difficulty…for…mechanized…conservation…tillage.…Paddy…field…cultivation…experiment…was…carried…out…by…three…cultivators，
including…crawler…self-propelled…rotary…cultivator， rotary…tiller…fitted…on…roller…tractor…and…rotary…tiller…fitted…on…walking…
tractor.…The…results…showed…that…compared…to…roller…tractor…and…walking…tractor， the…crawler…self-propelled…rotary…cultivator…
was…more…efficient， more…flexible…and…easier…to…walk…in…mud， it…saved…30-75…min/hm 2 …compared…to…roller…tractor， saved…
10-12.5…h/hm 2 …compared…to…walking…tractor.…After…the…crawler…self-propelled…rotary…cultivator…tillage， the…field…surface…
was…flat， the…mud…feet…change…degree…was…low， the…field…was…suitable…for…mechanical…planting;…for…early…rice， the…yield…was…
1.0%…higher…than…roller…tractor， and…2.3%…higher…than…walking…tractor;…for…late…rice， the…yield…was…0.5%-1.0%…higher…than…
roller…tractor， and…0.5%-2.3%…higher…than…walking…tractor.…Therefore， the…crawler…self-propelled…rotary…cultivator…tillage…
could…reduce…the…mechanical…damage…of…paddy…field， increase…rice…yield…and…achieve…the…goal…of…conservation…tillage.… |
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