Watering done prior to the sowing of the crops is called ________.
paleo irrigation
Understanding Paleo Irrigation: Watering Before Sowing Crops
The question asks about the specific term used for watering the land before sowing the crops. This is a crucial step in agriculture, especially in regions where moisture is needed to prepare the soil for germination and initial plant growth.
What is Paleo Irrigation?
Paleo irrigation refers to the initial watering done on a field just before the seeds are sown. The purpose of this watering is to provide sufficient moisture to the soil profile so that the seeds can germinate properly and the young seedlings have access to water for their initial development.
This practice helps in:
- Ensuring adequate moisture for seed germination.
- Making the soil workable for sowing operations.
- Leaching down excess salts in some cases.
Analyzing the Options
Let's look at the other options provided to understand why they are not the correct terms for watering before sowing:
- Kor watering: This is the first watering given to a crop after its seeds have germinated and the plants are small. It's done when the plants are in their initial growth stage, not before sowing.
- Duty: In irrigation engineering, duty refers to the area of land that can be irrigated by a unit discharge of water (usually one cubic meter per second) flowing continuously for the entire base period of the crop. It's a measure of efficiency of irrigation water use, not a type of watering.
- Delta: Delta represents the total depth of water required by a crop during its entire base period. It is usually expressed in centimeters or meters. Like duty, it's a measure related to total water requirement, not a specific watering event before sowing.
Based on the definitions, paleo irrigation is the correct term for watering the land prior to sowing the crops.
Revision Table: Key Irrigation Terms
| Term | Description | Timing Relative to Sowing/Growth |
|---|---|---|
| Paleo irrigation | Initial watering before sowing seeds. | Before sowing |
| Kor watering | First watering after germination. | After germination, during early growth |
| Duty | Area irrigated per unit discharge (m²/m³/s). | Concept over entire crop period |
| Delta | Total depth of water required by crop (cm/m). | Total over entire crop period |
Additional Information on Irrigation Practices
Proper timing and amount of irrigation are critical for successful crop production. Different stages of plant growth have varying water requirements. Understanding terms like paleo irrigation and kor watering helps in planning irrigation schedules effectively.
Irrigation methods also vary, including surface irrigation, sprinkler irrigation, drip irrigation, etc., each with its own advantages and suitability for different crops and soil types. The goal is always to supply the right amount of water at the right time to optimize yield while conserving water resources.
Important Questions from Water Requirement of Crops
Which of the following food grain crops occupies the largest part of the cropped area in India?
Which of the following statement is correct for sprinkler irrigation method?
- An identified source of irrigation water has ion concentrations of Na+ , Ca++ and Mg++as 20, 10 and 8 mill-equivalent per liter, respectively. The SAR of this water is approximately:
The duty is the largest
If B is the base period in days, D is the duty in hectares/cumec and Δ is the delta of the crop
in m, the relationship between them is given by:
