Fertility example sentences

It was the belief of many people that the valley owed much of its fertility to the benign face that was continually beaming over it.She loves the surroundings and wants to stay here as long as she can, but this little girl has no idea about the declining fertility of the soil and her family's search for fresh a patch of land in the next season.After the soil loses its fertility, the land is abandoned and the cultivator moves to a new plot.Short-term benefits of using fertilizers and long-term benefits of using manure for maintaining soil fertility have to be considered while aiming for optimum yields in crop production.Therefore, in order to maintain the fertility of the soil, we have to substitute fertilisers by organic manure or leave the field uncultivated (fallow) in between two crops.Due to its high fertility, regions of alluvial soils are intensively cultivated and densely populated.This type of farming depends upon monsoon, natural fertility of the soil and suitability of other environmental conditions to the crops grown.Also, as we have seen in the previous chapter, continuous use of fertilizers in an area can destroy soil fertility because the organic matter in the soil is not replenished and micro-organisms in the soil are harmed by the fertilizers used.Being leguminous crops, all these crops except arhar help in restoring soil fertility by fixing nitrogen from the air.Manure helps in enriching soil with nutrients and organic matter and increasing soil fertility.Inspite of development of sources of irrigation most of the farmers in large parts of the country still depend upon monsoon and natural fertility in order to carry on their agriculture.Cultivation of the same soil over a few years depleted the nitrogen in the soil and reduced its fertility.Removal of useful components from the soil and addition of other substances, which adversely affect the fertility of the soil and kill the diversity of organisms that live in it, is called soil pollution.In many areas, Green Revolution is associated with the loss of soil fertility due to increased use of chemical fertilizers.When the soil fertility decreases, the farmers shift and clear a fresh patch of land for cultivation.