Dry land farming in India is largely confined to areas with rainfall less than

Dry land farming in India is specifically defined by its rainfall threshold. According to agricultural classifications, dry farming refers to the cultivation of crops in regions where the average annual rainfall is less than 750 mm (75 cm) [1]. These areas are characterized by high moisture stress, frequent crop failures due to prolonged dry spells, and a growing season typically shorter than 75 to 200 days [2]. In contrast, 'dryland farming' (often used as a broader category) covers regions receiving between 750 mm and 1150 mm, while 'rainfed farming' applies to areas with rainfall exceeding 1150 mm [2]. In the Indian context, dry land farming is largely confined to arid and semi-arid tracts where moisture conservation is critical for survival [2]. Therefore, the 75 cm threshold is the standard limit for defining these restricted agricultural zones.

Sources

1. [1] https://courseware.cutm.ac.in/wp-content/uploads/2020/05/Introduction-types-Lc-No.-1.pdf
2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 10: Locational Factors of Economic Activities > Problems and Prospects of Dryland Agriculture > p. 20