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Depletion in arable soil seed bank under 'jhum' and terrace cultivation in Meghalaya



Depletion in arable soil seed bank under 'jhum' and terrace cultivation in Meghalaya



Seed Research 24(1): 20-25



The loss of weed seeds (through soil and water erosion, weed emergence, seed mortality and decomposition) from soil seed banks of potato, cabbage, maize and paddy rice fields under 'jhum' and terrace cultivation in Meghalaya, India, was studied during 1991-92. Seeds of 28 weed species were observed in run-off water and sediments eroded from fields. The loss of weed seeds ranged from 87 m-2 (paddy) to 156 m-2 (potatoes under 'jhum' cultivation). Of these seeds, 59% were still viable.

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