Lever System and Dhekli: Traditional Irrigation Techniques
The question asks about the traditional methods of Lever system and Dhekli. Let's understand what these are and their purpose in agriculture.
Understanding Lever Systems in Agriculture
A lever system is a simple machine that utilizes a rigid bar or beam that pivots around a fixed point called a fulcrum. By applying a force at one point, it can lift or move a load at another point. This principle is widely used in various traditional tools.
Dhekli: A Traditional Water-Lifting Device
The 'Dhekli' is a classic example of a lever-based tool used predominantly in rural areas for lifting water from wells. It typically consists of:
- A long pole (the lever) pivoted on a support (the fulcrum), often a frame or a Y-shaped branch.
- A rope or bucket attached to one end of the pole to draw water.
- A counterweight (like a stone or mud) attached to the other end.
By pushing down on the weighted end, the bucket end rises, making it easier to lift water. This mechanism significantly reduces the effort required to draw water, making it a vital tool for farmers.
Dhekli's Role in Irrigation
Since the Dhekli is primarily used to lift water from wells or other sources, its main function relates directly to providing water for crops. This process is known as irrigation.
Analyzing Other Agricultural Methods
Let's consider why the other options are less likely:
- Cultivation: This involves preparing the soil. While tools are used, Dhekli is not directly involved in tilling or soil preparation.
- Sowing: This is the process of planting seeds. Traditional sowing methods use different tools like seed drills or manual broadcasting, not water-lifting devices.
- Harvesting: This involves reaping mature crops. Tools like sickles or scythes are used for harvesting, unrelated to the Dhekli's function.
Therefore, the lever system, exemplified by the Dhekli, is a traditional method specifically employed for irrigation.
Important Questions from Agriculture
How is permaculture farming different from conventional chemical farming?
1. Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are predominant.
2. Conventional chemical farming can cause an increase in soil salinity but the occurrence of such phenomenon is not observed in permaculture farming.
3. Conventional chemical farming is easily possible in semi-arid regions but permaculture farming is not so easily possible in such regions.
4. Practice of mulching is very important in permaculture farming but not necessarily so conventional chemical farming
Select the correct answer using the code given below.
With reference to ‘palm oil’, consider the following statements:
1. The palm oil tree is native to Southeast Asia.
2. Palm oil is a raw material for some industries producing lipstick and perfumes.
3. Palm oil can be used to produce biodiesel.
Which of the statements given above are correct?
In the context of India’s preparation for Climate-Smart Agriculture, consider the following statements :
1. The ‘Climate-Smart Village’ approach in India is a part of a project Jed by the Climate Change, Agriculture and Food Security (CCAFS), an international research programme.
2. The project of CCAFS is carried out under Consultative Group on ‘International Agricultural Research (CGIAR) headquartered in France.
3. The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in India is one of the CGIAR’s research centres.
Which of the statements given above are correct?
With reference to 'Initiative for Nutritional Security through Intensive Millets Promotion', which of the following statements is/are correct?
1. This initiative aims to demonstrate the improved production and post-harvest technologies, and to demonstrate value addition techniques, in an integrated manner, with cluster approach.
2. Poor, small, marginal and tribal farmers have larger stake in this scheme.
3. An important objective of the scheme is to encourage farmers of commercial crops to shift to millet cultivation by offering them free kits of critical inputs of nutrients and microirrigation equipment.
Select the correct answer using the code given below.
Which of the following is/are the advantage /advantages of practising drip irrigation?
1. Reduction in weed
2. Reduction in soil salinity
3. Reduction in soil erosion
Select the correct answer using the code given below.
