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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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Subject: Soil Science × Author: Ajeet Singh × End date: 2019 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Influence of long-term conservation tillage in wheat on soil physical fertility and crop performance under rice-wheat cropping system
    (CCSHAU, 2014) Ajeet Singh; Phogat, V.K.
    Information about soil physical properties under different management systems is essential for sustainability of agricultural systems. The long-term impact (15 years) of zero tillage in wheat under ricewheat cropping system was evaluated on some physical properties and wheat productivity parameters in three texturally different soils representing entire rice growing area of the State of Haryana. The conventional (CT, two harrowing, one cultivator and planking) and zero tillage (ZT, direct drilling) systems were investigated. The ZT found to increase the soil organic carbon (OC) content significantly to a depth of 0.10, 0.15 and 0.25 m in sandy loam, loam and clay loam soil, respectively, indicating its buildup to deeper depths with increasing fineness of texture. It also resulted in reducing plough pan developed due to continuous CT used in both rice and wheat crops. Soil dispersion reduced significantly at almost all the depths and sites indicating better aggregation. The saturated hydraulic conductivity increased significantly to a depth of 0.10 m with variable magnitude in different textured soils. The increase in magnitude for surface layer was highest in loam (51 %) followed by sandy loam (40 %) and clay loam (38 %) soil. Although water retention and aeration porosity increased in all the three soils under ZT but a significant increase was observed in moisture content at field capacity to a greater depth (0.15 m) in clay loam soil. Water intake rate also increased significantly in clay loam soil (28 %) over the CT treatment. The root biomass measured in 0.4 m soil depth was significantly higher in all the soils but it was highest in sandy loam followed by loam and clay loam soil under both the tillage systems. In addition, ZT favoured the deep penetration of roots in all the soil types. Overall effect of improvement in the soil physical properties under ZT resulted in significant increase in mass of grains and consequently significant increase in yield of wheat in clay loam soil as compared to CT treatment whereas no such effects were observed in other soils. Thus, the results indicate that the ZT practice in wheat under rice-wheat cropping system may be adopted for sustaining the productivity of ricewheat system, however, the practice is more suitable in fine textured soils as compared to medium or coarse textured soils.