Engineering
7 years ago

New soil water estimation tool revolutionizes dryland agriculture in India.

Journal of Earth System Science
Pedotransfer functions to estimate soil water content at field capacity and permanent wilting point in hot Arid Western India
Priyabrata Santra, Mahesh Kumar, R. N. Kumawat, D.K. Painuli, K. M. Hati, G.B.M. Heuvelink, N.H. Batjes

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Researchers developed a method to estimate soil water content in dry areas of India without directly measuring it. They used data from 370 soil samples to create formulas that can predict water levels in the soil. These formulas were tested on 36 samples from India and 1789 samples from the USA. The new method was more accurate than existing methods, with errors of 2.65 for field capacity and 1.08 for wilting point in India. The results were similar to established methods when tested in the USA. This new tool can help farmers decide when to water their crops based on the type of soil they have.