Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
3 cards from this section. Quick, good the night before a test.
What does LR stand for in irrigation?
Think about what is needed to manage salts.
What do you measure to find out the salinity of soil?
It measures how well the soil can conduct electric current.
What is the main purpose of calculating Leaching Requirement (LR)?
What issue does leaching address?
True or False: Higher Electrical Conductivity (EC) indicates lower salinity in soil.
Reflect on what electrical conductivity measures.
A farmer tests their irrigation water and finds an EC_{iw} of 2.8 dS/m and the saturation extract has an EC_{e} of 1.1 dS/m. Determine the leaching requirement and discuss the implications for irrigation practices.
Be sure to calculate carefully and reflect on how this impacts irrigation.
If a field is neglected for several seasons regarding leaching, and a farmer notices a significant increase in soil salinity, what steps can they take to rectify the situation using LR?
Think about the relationship between leaching requirement and salinity management.
5 more questions in this section. Enroll free to practise them all.
Enroll free