| One of the most serious effects of overfarming is the change in the pedological profile. |
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| The vegetative cover of this area may have been degraded in very early times and now the soil is impoverished by overfarming. |
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| Many people take supplements of nutrients on the premise that our soils are depleted from decades of overfarming. |
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| Several essential elements are depleted from many soils by overfarming, acid rain, or the many geological forces that dictate soil mineral content. |
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| But contemporary errors in breeding and overfarming also tend to loom large, while past struggles, misconceptions and disasters are forgotten. |
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| But here is one big-ticket saving that all members of Congress should get behind: cutting the billions of dollars in farm subsidies that distort food prices, encourage overfarming and inflate the price of land. |
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| Soil yields are dwindling and food security on the island is threatened by deforestation, overfarming of land, low levels of productivity and land tenure insecurity. |
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| Overfarming was often ascribed to immigrants farming too much, and creating pressure on land so that the villagers could not give their own farmland a rest from cultivation. |
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