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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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20201
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Subject: Basic Sciences and Humanities × Author: Gautam, Vanshika × Start date: 2020 ×
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    ThesisItemOpen Access
    Study on dielectric constant of different type of soils
    (CCSHAU, Hisar, 2020-08) Gautam, Vanshika; Paul Singh
    Soil is a very important natural resource and has pivotal role in agriculture. Soil moisture is responsible for healthy growth of the plant and directly affects the yield. The soil moisture of the field at any instant can be determined directly from the calibration curve between dielectric constant and soil moisture. For this purpose the dielectric constant of soil for different moisture content was measured. Three texturally different soils of 0-15 and 15-30 cm depths were taken. Their physical properties like texture, bulk density, organic carbon and maximum water holding capacity were measured. Bulk density was found to increase with depth, while the organic carbon percent and maximum water holding capacity of soil decreased with depth. The dielectric constant kit was used to measure the value of dielectric constant of soil samples. The variation of dielectric constant with soil moisture was noted, which forms a calibration curve. This curve helps to find out the soil moisture once the dielectric constant value of the soil is known. The dielectric constant was observed to be highest for sandy loam soil. The relation of dielectric constant with soil physical properties was investigated. It was found in the study that soil moisture significantly affects dielectric constant. The correlation of dielectric constant is positive with bulk density and sand, while it is negative with organic carbon, maximum water holding capacity, silt and clay content.