Soil Depletion

Soil Depletion

 

a sharp decrease in crop yields after continual cultivation of the same crops or frequent use of the same field. It is most pronounced after the growing of clover (clover sickness), flax (flax sickness), and sugar beets (beet sickness).

The main causes of soil depletion are the accumulation of pathogenic microorganisms (fungi, bacteria, viruses) that inhibit the growth of certain plants by their secretions or by infesting the roots; the development of pests and weeds; and soil exhaustion. Control measures include crop rotation (clover can be grown on the same field after five years, flax after six or seven years, and sugar beets after three years), growing resistant varieties, and applying pesticides to the soil.

References in periodicals archive ?
Subsidies need to be used to support farmers in tackling climate change, flooding, biodiversity loss, soil depletion.
The provinces of the affected component municipalities are also imposing governor's clearance, verification fee, environmental fees, soil depletion tax and processing permits for vessel,' according to Alvina.
Vibeke Jensen, UNESCO Representative to Pakistan in her inaugural remarks stressed that the rates of soil depletion are especially worrying in the drylands which need significant attention for global sustainability, especially food security.
Islamabad -- UNESCO Representative to Pakistan Vibeke Jensen has said that the rate of soil depletion is worrying in the drylands which need significant attention for global sustainability, especially for food security.
The report said some of indigenous trees have moved away from their habitats and the desert creep and deterioration of environment are related to the human and animal's gatherings a matter that leads to an increase of soil depletion of between 20% to 55% The report said the areas of east Kordufan which extends for about 29 thousands kms used to have some 150 wells providing drinking water and irrigation which has a huge impact on the ecosystem there.
The glass is getting emptier, as we face climate change, soil depletion, and species loss.
Rapid soil depletion, desertification, and climate change don't have to be the new normal--we can duplicate the kind of principles exhibited by these early animals and the Native Americans whose existence depended on them.
Another overlooked problem related to climate change and water resource issues is soil depletion.
If you do and you are certain that your food is not affected by soil depletion and your body is not exposed to any toxins, then read no more.
This cycle of intensive monoculture, soil depletion, and deforestation is clearly unsustainable.
Top soil depletion due to soil and water erosion is a grave threat to our continued ability to produce adequate food.
Small farmers do not have access to latest agro-technology and hence adopt farm practices which are usually not optimal, leading to soil depletion, excess use of fertilisers and water.