How is excessive irrigation harmful for crop production?

How is excessive irrigation harmful for crop production?

Water is very important for the growth of plants but excessive irrigation of field leads to water logging of soil. Too much water is the soil inhibits the process of germination of seeds. It due to the reason that under these conditions the seeds do not get sufficient air to respire.

Why over-irrigation is harmful?

Over-irrigation leads to water loss, increases energy use for pumping, causes leaching of nitrogen and other micro nutrients, and wastes time. Poor irrigation management that results in either excessive or inadequate water application can significantly reduce the potential for profitability.

What is the harm of excessive irrigation?

Excessive water in the field increases the amount of salt on the surface of soil due to evaporation. The accumulation of salts damages the soil fertility. The excessive irrigation may lead to lodging of the crop. Thus, excessive watering may damage the crop and reduce the quantity and quality of the produce.

Why does more watering damage the crop?

In sandy soil if heavy irrigation is given the water will rapidly percolate down and will be wasted. The water table may be high and the additional water accumulates and chokes the air spaces and saturates the surface and sub-soil. Many toxic salts affecting water absorption by roots and causes damage to crops.

Which crop that gets damaged if irrigated excessively?

Agriculture experts of the Punjab agriculture department, say that to harvest a bumper crop of wheat, the scientific use of available irrigation water is essential, excess irrigation causes wastage of water and is harmful for the soil and also reduces the uptake efficiency of nutrients resulted into decreases the yield …

What is mean by excessive irrigation?

Over irrigation means the artificial application of excessive water to land to assist in the production of crops.It is mainly done where the land is dry.It leads to higher dampness and salinity of soil. This reduces the natural fertility of the land.

What are the causes of over irrigation?

Irrigation salinity occurs due to increased rates of leakage and groundwater recharge causing the watertable to rise. Rising watertables can bring salts into the plant root zone which affects both plant growth and soil structure.

Which type of irrigation is harmful to soil?

5.4. Flood irrigation also causes temporary waterlogging, with adverse effects on crops like wheat, maize, and legumes. Waterlogging is more prolonged and more severe on heavy textured soils, and on soils used for rice culture because of the well-developed, shallow, hard pan (slowly permeable) as a result of puddling.

What are the negative effects of excessive irrigation Class 8?

Harmful effects of excessive irrigation: Excess of water in soil leads to water logging. Sometimes, it inhibits the process of germination. Roots do not grow properly in a standing water field.

What happens when there is too much water in the soil?

Overwatering, in simple terms, drowns your plant. Healthy soil allows for oxygen to exist in the space between particles of soil. If there is too much water or the soil is constantly wet, there is not enough air pockets. This results in a limited oxygen supply and plants are not able to breathe.

How does soil get affected due to scarcity and excess of water?

Lack of nutrients, water, oxigen and some other fundamental suvstances will result in bio-scarcity, and poor chemical and physical conditions, which reduce fertility, and microbial life, then reducing soil abilty for all kinds of life.

How does soil gets affected due to scarcity?

Soil is not human. So there can be no direct affect of scarcity on soil. Human behavior changes when something becomes scarce. The single most common human reaction to scarcity is hoarding.

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