Why is irrigation important for agriculture


Importance of Irrigation

  • Agriculture is often greatly hampered due to irregular, insufficient or uncertain rain. …
  • The productivity of irrigated land is more than the un-irrigated land. …
  • Seeds cannot grow in dry soil as moisture is necessary for the germination of seeds. …
  • Multiple cropping in a year is possible through irrigation. …

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Water applied as irrigation allows for crop production in arid regions and supplements soil moisture in humid regions when growing season precipitation is insufficient. Irrigation has enhanced both the productivity and profitability of the agricultural sector.May 6, 2022


What are the roles of irrigation on agriculture?

  • Agriculture is often greatly hampered due to irregular, insufficient or uncertain rain. …
  • The productivity of irrigated land is more than the un-irrigated land. …
  • Seeds cannot grow in dry soil as moisture is necessary for the germination of seeds. …
  • Multiple cropping in a year is possible through irrigation. …

More items…

Why is irrigation important for agriculture?

What is the importance of Irrigation in India?

  • (1) About 80 per cent of the total annual rainfall of India occurs in four months, i.e. …
  • (2) The monsoons are uncertain. …
  • (3) It does not rain equally in all parts of the country. …
  • (4) Soils of some areas are sandy and loamy and therefore porous for which a major portion of rainwater sinks down very quickly. …

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Does agriculture use large amounts of water for irrigation?

Agriculture is a major user of ground and surface water in the United States, and irrigation has enhanced both the productivity and profitability of the agricultural sector. According to the 2017 Census of Agriculture, farms with some form of irrigation accounted for more than 54 percent of the total value of U.S. crop sales, while irrigated land accounted for less than 20 percent of harvested …

What are the sources of irrigation for farmers?

  • Well
  • Pond
  • Stream
  • River
  • Well
  • Canal
  • Dam
  • Glacier (for few places)

Why is it important irrigation?

Places that have sparse or seasonal rainfall could not sustain agriculture without irrigation. In areas that have irregular precipitation, irrigation improves crop growth and quality. By allowing farmers to grow crops on a consistent schedule, irrigation also creates more reliable food supplies.

Why is irrigation an advantage to farmers?

Irrigation allows you to: grow more pastures and crops. have more flexibility in your systems and operations. produce higher quality crops/pastures as water stress can dramatically impact on the quality of farm produce.

What benefits will irrigation do to us?

Irrigation systems offer a variety of benefits. They allow for the growth of a wider variety of crops. They can be timed so that the hands-on portion of crop production is a little less cumbersome. They protect crops from irregular and dry weather conditions.

Why is irrigation important?

Irrigation can be bought to bear whenever there is too little rainfall or uncertainty about when rain will come. Without either, crops will be badly affected, leading to food shortages and, in some instances, famine.

How long has irrigation been around?

The development is irrigation is inextricably connected with the evolution of human civilisation. The first forms of irrigation date back over 8,000 years.

What is the biggest technological breakthrough in irrigation?

One of the biggest technological breakthroughs in irrigation science in the 20 th century was the development of drip irrigation. It has the ability to deliver water to the root systems of crops and thereby reduce the amount of water needed for irrigation by as much as 70%. Not only is it much more ecologically friendly, but it can also increase crop yields by anywhere between 20% to 90%.

How much land is used for drip irrigation?

National Geographic reports that the area under this type of irrigation has risen from 1.6 million hectares to in excess of 10.3 million. Although that might sound a lot, it still represents only 4% of the planet’s irrigated land, so there is room for considerable improvement.

Why did the Nile flood?

The River Nile flooded its banks for several months each year. The Egyptians diverted the floodwaters to nearby fields to enable farmers to grow crops that , without the presence of life-giving water, would otherwise have been impossible.

How much of the world is irrigated?

So many areas on the planet are naturally arid. Irrigation has turned these wastelands into productive, cultivable land. In today’s world, approximately 18% of crops are irrigated. Chemicals and fertilisers delivered via irrigation have also enabled fallow land, which has been traditionally left idle once crops have been harvested, to be reused.

How can lack of rainfall be compensated for?

Lack of rainfall can be compensated for by irrigation, enabling crops to grow and flourish. But even when there is sufficient rainfall, irrigation can be employed to boost crop productivity.

How is irrigation related to agriculture?

Irrigation in agriculture is dependent on the availability of water of a suitable quality. Water quality is assessed by the potential problems which can develop as result of long-term use. The extent of potential problems varies and is determined by soil, climate and crop, as well as the skill and knowledge of the water -user.

What is the purpose of measuring water flow rate?

Water measuring, or determining of flow rate, is an aid for the effective distribution of water and is usually applied for the sake of legal requirements, management requirements, or both.

What is the section of Anusuya Rangarajan’s manual on crop rotation?

Anusuya Rangarajan’s manual on crop rotation has a section called Crop Rotation Effects on Soil Fertility and Plant Nutrition that explains the importance of the education of farmers on the first technical solution mentioned earlier, crop rotation.

Why is topsoil considered the Great Economy?

Without topsoil, our ecosystem is going to vanish and destroyed by the power of humanity. Most importantly topsoil is regard as The Great Economy because “we cannot make any substitute for it; we cannot do what it does. It is apparently impossible to make an adequate description of top-soil in the sort of language that we have come to call scientific” (Berry 62).

Why are plants important to the Earth?

Plants are essential elements of the earth ecosystem. Despite the importance of plants to support the life on our world, our understanding of their developmental processes is still fragmentary. In nature, plants grow next to each other forming the different societies of the plant kingdom.

Who manages water sources?

Most water sources are managed by Water Users Associations, which has to see to it that only the quantity of water allocated to each specific farm is pumped by or delivered to the farm for irrigation purposes.

Is runoff from agriculture a point source?

Additionally, runoff from agriculture is exempt from being defined as a point source. Though the main focus of the Clean Water Act is on controlling point source pollution, the Act also addresses nonpoint sources of pollution, since they cause a significant amount of the pollution in streams, lakes, and estuaries.

Why is irrigation important in agriculture?

The importance of irrigation in agriculture and proper water storage. Water, an essential resource for crop production, is an increasingly scarce asset, while the area devoted to crops continues to grow due to the progressive increase in the world’s population .

Where does agricultural water come from?

The water destined for agricultural use is obtained from rivers, lakes, wells, sewage treatment plants, and by seawater desalination processes, as well as from water reservoirs or rafts in those places where a constant flow is not available.

How much water is needed to produce wheat?

And, if we consider that to produce a kilogram of wheat (including straw and grain), it is necessary to consume about 450 liters of water, and that a person’s food requires 0.23 hectares and 3,000 liters per day for its production, we realize the enormous amount of water that must be used for agricultural use.

What is the purpose of irrigation?

the purpose of agricultural irrig ation and the advantages and disadvantages of mainstream methods. Irrigation is defined as the artificial application of water to the soil through various systems of tubes, pumps, and sprayers. Approximately 20% of the world’s agricultural land is irrigated, yet 40% of the world food supply comes from irrigated …

Why do we need to work together to improve irrigation systems?

Promotes social interaction – many community members need to work together to ensure the success of irrigation systems, particularly those dependent on water that comes from long distances (ex. mountain runoff)

What are the two main types of irrigation systems?

There are two main types of agricultural irrigation – gravity powered and pressure driven systems . Gravity powered systems are, as the name implies, driven by gravity. Pressure driven systems require an electrical pump in order to provide the irrigation system with water. Examples of gravity powered systems include:

Why is irrigated land important?

The main reasons for irrigation are: 1. Not enough rainfall to support crop growth.

Why is there not enough rainfall to support crop growth?

Not enough rainfall to support crop growth. This may be due to rainy and dry seasons, drought or arid/semi-arid climate conditions. Irrigation systems may also be used to maintain consistent moisture levels even in areas with moderate precipitation levels as it has been shown to improve crop performance. 2.

Why is soil salinity high?

High soil salinity levels can be a natural occurrence which is the case in many semi-arid and arid locations or a result of poor agricultural practices and ineffective drainage. In cases impacted by salt levels in the soil, irrigation must often be coupled with drainage in order to achieve the desired benefits.

Why is agriculture important?

The agricultural sector has strategic priorities in terms of nutrition. Increasing demand for food because of population growth in the world increases the need for agricultural products and obligates the sustainability of agricultural enterprises, the agricultural sector. Agricultural sustainability; economic, technical, central, legal and social. Each of these sub-components is important for the success and sustainability of the agricultural sector. Although economic sustainability has been accepted as part of overall sustainability in the literature, technical sustainability is important at the core of economic success. Agricultural production practices, amounts and combinations of inputs used, production technology used and production technique applications can be defined as components of technical sustainability. The fact that the amount of input used in production is above the optimal use has an adverse effect on environmental sustainability and economic sustainability. The fact that the amount of input used is lower than the optimal usage will cause resources to be inadequate, low yield and low income. Factors such as soil structure, climatic factors, and water supply that affect the production success limit agricultural production. Water, one of the agricultural inputs, has an indispensable prescription for agricultural production. Because agricultural products are, biological structures and all biological materials require water. Irrigated farming is important in terms of meeting human needs as it increases productivity, and dry farming is important for environmental, technical and economic sustainability.

How can agriculture be improved?

Agricultural production can only be sustained on a long term basis if the land, water and forests on which it is based are not degraded further. Improvements in water resources management are essential to raise agricultural productivity and reduce land degradation and water pollution. Salinization, alkalization and water logging should be addressed by a more careful approach to drainage and the regulation of water quantities through efficient use of irrigation water, which require that water be applied to growing crops at appropriate times and in adequate. The integrated management of water resources could only be possible through adoption of efficient and optimum use of irrigation water, which could only be ensured by judicious and economic use of irrigation potential whatsoever created to increase crop production. The integrated water resources management also includes the concept of rainwater management that has got an immense important on the way to develop the rainfed farming system. It has got relevancy particularly in installing small-scale irrigation system based on farmers’ participatory approach for sustainable crop production for maintaining sustainable growth and development of agriculture. Modern irrigation techniques like sprinkler and drip should be promoted when water is scarce and the topographic and soil conditions do not permit efficient irrigation by conventional methods. Promotions of such water saving devices should be an objective of the national water policy. Water resource management is a integrated and multidisciplinary activity, managing irrigation water that needs agronomy and crop husbandry, efficient methods and system of irrigation needs soils scientists and engineers. More than 98% of the irrigated lands are under the coverage of surface irrigation where more than 50% of water as considered as wastages wherein effective minimization of wastage of water used for irrigation and application of right quantity of water at right time will be the key to successful management of this crucial resource. So question of judicious management of water is pertinent while prioritizing researchable issues became of national importance.

What percentage of water is used for feed crop production in high income countries?

38.41% in high-income countries. It is seen that 21.08% of water is used for feed crop production in

What are the factors that limit plant growth?

reclamation, land consolidation, technology use and irrigat ion. The most important factor limiting plant

How much water is used in cereal production?

water used in cereal production is determined as 61.18% globally. In the world, cereal production is

How many hectares are irrigateable?

hectares. Although 12.5 million hectares of land are irrigable, only 8.5 million hectares of land can be

Is yield higher in irrigated conditions?

and it is seen that yield is higher in irrigated conditions. I n 2012, the products with highest yield increases

Why is irrigation important?

the main objectives of irrigation systems is to help agricultural crop growth, landscape maintenance, reduce the effect of inadequate rainfall etc.

How does irrigation help with drought?

Bringing more land under cultivation is possible through irrigation. Insufficient rain may also cause drought & famines. Irrigation can play a protective role during the period of drought & famines. Irrigation contributes to the economic growth and poverty reduction 2.

Is irrigated land more productive than unirrigated land?

The productivity of irrigated land is more than the un-irrigated land. Crop yields everywhere in the developing world are consistently higher in irrigated areas than in rainfed areas 1. Seeds cannot grow in dry soil as moisture is necessary for the germination of seeds. With the help of irrigation supply, the required moisture content …

Why do you need to water before tilling?

1. Irrigation maintains moisture in the soil. Moisture is necessary for the germination of seeds. Seeds do not grow in dry soil. That is why irrigation is done before tilling.

What are the two essential elements that water supplies to the crop?

4. Water supplies two essential elements hydrogen and oxygen to the crop.


Early Irrigation in Egypt

Early Irrigation in Mesopotamia

The Sumerians

The Depletion of Underground Water

The Threat Against The World’S Major Aquifers

The Importance of New Irrigation Technologies

  • Agriculture has a serious duty of care. Where possible, it needs to move away from flood irrigation, which despite the water wastage it involves, is still the most-used irrigation technique worldwide. Where appropriate, pivot irrigationcan be a more cost-effective and resource-efficient alternative. This type of technology uses aerial imagery via c…

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