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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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20121
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Subject: Soil Science × Author: Monika × End date: 2018 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Long term effect of sodic water irrigation, gypsum and FYM on soil properties and okra yield
    (CCSHAU, 2012) Monika; Sharma, S.K.
    A field study was conducted using the experimental unit of an ongoing long term experiment which has been in progress since 1994. The okra crop was irrigated with high RSC (11.5 me/L) sodic water having three levels of gypsum [(G0, G1 and G2) G0 control, G1=50% neutralization of RSC, G2=100% neutralization of RSC] as well as FYM [(F0, F1 and F2) (F0=Control, F1=10 tons/ha, F2=20 tons/ha)] in 2010-11 on a sandy loam Typic Ustochrept having 19.6 percent clay and 9.3 cmol kg-1 CEC in 0-30cm layer at the Vegetable Crops Research Farm of CCS HAU, Hisar. The days to 50% germination and days to appearance of 1st flower in 50% plants was hastened with the increased application of FYM and gypsum. The plant height, number of branches and number of fruits per plant and okra yield showed a significant increase with the application of FYM @ 10 (F1) and 20 (F2) tons ha-1 and gypsum @ 50% (G1) and 100% (G2) neutralization of RSC. The Zn, Cu, Mn, Fe and Ca+Mg in okra plant were also significantly increased with the application of gypsum and FYM. The sodium concentration in okra plant showed the decreasing trend with the increase in application of FYM and gypsum. The increase in Na/K ratio of plant showed the declining trend with okra yield. The sodium concentration decreased but Ca+Mg concentration increased significantly both with gypsum and FYM. Adverse effect of residual alkalinity of irrigation water was quite prominent on physico-chemical and microbiological properties of soil. Infiltration rate as well as hydraulic conductivity were significantly increased with increase in gypsum level and decreased with increase in FYM level. But the bulk density decreased with FYM and gypsum. The pH and ESP of soil particularly in surface layer (0-15cm) which were very high under F0G0, lowered to normality with the use of FYM and gypsum as amendments. However, the CaCO3 and organic carbon concentration increased significantly with increasing levels of gypsum and FYM. The basal respiration ratio as well as microbial biomass carbon concentration showed a significant increase with the application of FYM and gypsum. The Alkaline phosphtase and dehydrogenease activity were also increased significantly with the increase in application of FYM and gypsum when compared with treatments without the use of FYM and gypsum as amendments.