Soil Depletion

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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 ?
The long-term decline in the world rice price has resulted in reduced investments for irrigation infrastructure (causing land degradation) and rice research [Rosegrant and Pingali (1991)].
Summary: Greater Noida [Uttar Pradesh], Sept 2 (ANI): India is committed to finding a long-term solution to minimise the impact of desertification and land degradation, Union Minister for Environment, Forest and Climate Change Prakash Javadekar said on Monday.
Due to its climate and pronounced location in the South Caucasus with a mountainous landscape, fragile ecosystems and a vulnerable, agricultural based economy, the compounding effects of climate change and land degradation particularly affect livelihoods and economies of Armenia and its approximately 3 million inhabitants.
The SLM network is a group of professionals aiming to create an environment that promotes a better understanding of desertification, land degradation and draught through information and recommendation on projects, programmes, and other relevant activities as well as disseminate information regarding sustainable land management and improve access for stakeholders in service delivery.
Over the next 25 years, land degradation could reduce global food productivity by as much as 12 percent, leading to a 30-percent increase in world food prices, he said.
Summary: New Delhi [India], Sept 5 (ANI): With land degradation massively affecting livelihood at the local level in all parts of the world, UNCCD has said that 122 countries have committed to set Land Degradation Neutrality (LDN) targets so far.
More than 110 countries including Pakistan and two-third of agricultural land of the world are being faced with the challenge of desertification, land degradation and drought (DLDD).
Bioenergy needs to be carefully managed to avoid risks to food security, biodiversity and land degradation. Desirable outcomes will depend on locally appropriate policies and governance systems.
He shared that program aims to combat land degradation and desertification in Pakistan in order to protect and restore degraded ecosystems and essential ecosystem services that they are key to reducing poverty.
Each minute, 23 hectares of productive land and soil is lost to desertification, land degradation and drought, according to UN Environment Programme (Unep).
With remarkable results in the protection of landscapes to stop land degradation and build a future together, Cuba celebrates today the World Day to Combat Desertification and Drought.
Adding that SLMP is striving to achieve the long-term goal of combating land degradation and desertification in Pakistan to promote sustainable management of natural resources, restore degraded ecosystems, reduce poverty, and increase

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