The correct answer is option 1: cropping intensity. Cropping intensity is a measure of the extent to which the land is being utilized for crop cultivation. It is determined by calculating the ratio of the gross cropped area to the net sown area.
Let`s break down the other options to understand why they are not the correct answers.
Option 2: Intensity of crop rotation refers to the practice of alternating different crops in a specific sequence on the same piece of land. It is not directly related to the ratio of the cropped area to the net sown area.
Option 3: Crop productivity refers to the amount of crop produced per unit of land, usually measured in terms of yield. It is not a measure of the ratio of the cropped area to the net sown area.
Option 4: Cropping diversity refers to the variety of different crops grown in a particular area. It is not a measure of the ratio of the cropped area to the net sown area.
In conclusion, the correct answer is option 1: cropping intensity, which is a measure of the ratio of the gross cropped area to the net sown area.