Correct Answer - Option 1 : the first watering before the crop is sown
Explanation:
Sometimes in the initial stages, before the crop is sown, the land is very dry.
In such cases, the soil is wetted with water, so as to help in sowing the crops, such irrigation is known as paleo irrigation.
The 1st watering which is given to the crop when the crop is few centimeters high is called kor watering.
The kor watering must be applied within a fixed limited period called as KOR period.
Crop ratio is defined as the ratio of the land irrigated during the two main crop seasons Rabi and Kharif.
Root zone depth is the depth within the soil profile roots that can effectively extract water and nutrients for its growth.
Kor watering - After sowing when the crop is few centimeters high.
Paleo - Before sowing to make the soil wet and easy to work on.
