Impacts of fertilization and sampling position on soil moisture and aboveground biomass of Medicago sativa were studied in a long term,in situ experiment.After 19 years continuous M.sativa planting,fertilization had no impact on M.sativa aboveground biomass.However,plant height declined and accumulation of aboveground biomass decreased towards the center of the experimental plot,like a biomass funnel.Differences due to sampling position were much bigger than those due to fertilization.Soil moisture in the l...
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