Work

Buried clay pot irrigation for efficient and controlled water delivery

Year: 2011

Type: article

Abstract: This study presents water flow (WF) into soil from several pitchers buried in the soil up to their neck and filled with water,under natural atmospheric conditions for a period of two years. Variation in daily WF into soil indicated a direct correlation with moisture deficit (MD) in atmosphere. WF increases linearly with MD for non rainy days. WF without hydraulic head through all pots varied in the order air>soil>water. Base line flow in water with respect to air was <5%. WF for pots with hydraulic head was also in the order air>soil>water, but with significant increase in WF. Hydraulic conductivity Ks was in the order air>soil>water.Ks in water was independent of MD, whereas for air and soil, Ks increased with MD. Thus total WF is partially under hydraulic head and partly due to pull effect through capillary pores on pot wall either due to MD in air or prevailing soil water tension in soil.

Source: Aston Publications Explorer (Aston University)

Authors: Vasudevan, Padman, Thapliyal, Alka, Sen, P.K., Dastidar, M.G., Davies, Philip

Institutions: Indian Institute of Technology Delhi, Aston University

Language: English

Topic: Irrigation Practices and Water Management

Subfield: Soil Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Clean water and sanitation, Zero hunger

Open Access status: green

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Engineering and Physical Sciences Research Council

Award: Enhanced biomass production and energy conversion for use in water-scarce areas of India