How does waterlogging affect plants?

How does waterlogging affect plants?

Waterlogging can impact cereal plant growth indirectly by affecting the availability of nitrogen in the soil. Excessive water can leach nitrate nitrogen beyond the rooting zone of the developing plant, particularly in well‐drained, lighter-textured soils.

What is waterlogging and its impact?

Waterlogging is a form of natural flooding when underground water rises to surface level as the result of over-irrigation. Waterlogging can displace the spoil, affect the natural processes in the soil, and result in a build-up of toxic substances in the soil, which can impede plant growth in the immediate area.

Is waterlogging good for plants?

false water logging is not good for plants.

How does waterlogging affect crop and soil?

Waterlogging constraints plant growth and production in the anaerobic conditions, leading to the death of certain crops and plants. Also, plant roots fail to respire as a result of the excess water in the soil profile, making them weak and either die or fall.

What is waterlogging How does it harm agriculture crops?

Water logging is caused when an excess of water is supplied to the field and it replaces the air present in the pores of the soil. As a result of this, the air supply to the roots reduces and in extreme cases, gets totally cut off. This results in the retarded growth of plants.

What is the effect of water logging on pH of soil?

The overall effect of waterlogging is to increase the pH of acid soils and to decrease the pH of sodic and calcareous soils.

How poor quality irrigation water is harmful for the plant growth?

Excessive vegetative growth, lodging, delayed crop maturity result due to excessive nitrogen in water. White and black deposit on soil due to high salt content and sodium and leaf burn due to using poor quality irrigation water in sprinkler irrigation are some of the problems.

How does water logging affect soil salinity?

In irrigated agricultural land, waterlogging is often accompanied by soil salinity as waterlogged soils prevent leaching of the salts imported by the irrigation water. This is generally due to the higher rainfall, higher dilution capacity in surface waters and lower initial salt content in the soil.

What does waterlogging do to soil?

Waterlogged soils exclude oxygen from the roots thus causing decline of the plants. What happens is the roots die off leaving the plant unable to uptake the needed moisture and nutrients for proper plant growth.

What is the effect of water logging on conductivity of soil?

Waterlogging increased the concentration of soluble K, Ca, Mg, Fe, and Mn ions, the magnitudes of changes were greatly affected by soil properties. Increases in soluble Na, K, Ca, and Mg were attributed to the increase in solubility of insoluble salts and increase in competition for the exchange sites.

Why is excessive irrigation harmful to the crops?

Over-irrigation leads to water loss, increases energy use for pumping, causes leaching of nitrogen and other micro nutrients, and wastes time. Crop nitrogen needs, fertilizer costs, and nitrogen losses to groundwater also result from over-irrigation.

How does water quality affect agriculture?

PROTECTION OF WATER FOR AGRICULTURAL USE Too often, water quality is not suitable for agricultural uses. High salt concentrations limit the amount of water a plant can take up, resulting in high plant stress and decreased crop yields. High concentrations of metals also have negative effects on crop production.

How are plants affected by drought and waterlogging?

Other effects of drought and waterlogging on plants are leaf wilting and stunted growth. When there is reduced moisture content in the soil, the plants may not be able to make use of all the water present in it. The leaves will wither and die.

What are the effects of waterlogging in a wetland?

EFFECTS OF WATERLOGGING An absence of Soil Aeration (Air or a Gas): In wetlands, the soil pores inside the root zone of crops (grains, plants) are saturated and air circulation is brought to an end. Waterlogging, therefore, prevents the free circulation of air within the root zone.

How does water logging occur in the soil?

HOW WATER LOGGING OCCURS: Waterlogging occurs whenever the soil is so wet that there’s low oxygen within the pore area for plant roots to be able to adequately respire. there’s no universal level of soil oxygen that will determine waterlogged conditions for all plants. Waterlogging is also a natural condition of the soil.

How does too much water affect a plant?

Too much water can also cause fungus and fungal infections to take hold. This can reduce the healthy growth of plants. In addition, when there is less oxygen available to the roots, this can inhibit photosynthesis. This can make it harder for plants to acquire the energy they need to grow.