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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 and Agriculture Chemistry × End date: 2014 × Start date: 2012 × Type: Thesis ×
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    ThesisItemOpen Access
    Long-term effect of integrated nutrient management on crop yield and phosphorus and potassium fractions in rice-wheat rotation
    (CCSHAU, 2012) Ganai, Abdul Quyoom; J. P. Singh
    An ongoing long-term experiment under rice-wheat cropping was selected to investigate the effect of organic and inorganic fertilization on crop productivity, and on amounts and distribution phosphorus and potassium fractions in soil. Balanced application of nutrients (N150P75K75Zn25) increased the grain yield of rice significantly as compared to control or imbalanced application of nutrients to rice crop. Application of FYM along with inorganic fertilizers increased the rice grain yield by 4.9 q ha-1 over that obtained with mineral fertilizer only treatment (N150P75K75Zn25). The grain yield of rice was significantly higher in FYM amended treatment as compared to any other organic manure amended treatment. Rice grain yield did not differ significantly among press mud, green manure, burnt rice husk and mineral fertilizer only treatments (N150P75K75Zn25) treatments. Application of N75P37.5K37.5Zn25 in green manured plot produced rice grain yield similar to that obtained with N150P75K75Zn25 treatment indicating a saving of approximately 50% of inorganic fertilizers in rice with Sesbania green manuring. The residual effect of organic amendments on grain yield of succeeding wheat was significant and the highest residual effect in terms of wheat grain yield was observed in case of FYM amended treatment. Application of inorganic fertilizers along with organic manures significantly increased the uptake of macro- and micronutrients by rice and wheat crops as compared to inorganic fertilizer alone treatment. Fifteen years of continuous cropping without any P fertilization decreased the contents of saloid-P, Al-P, Fe-P, Ca-P and RS-P over their initial status in soil. However, the significant decrease was observed only in case of Al-P, Fe-P and RS-P. On the contrary, application of phosphorus in combination with N150 or N150K75 or N150K75 Zn25 increased saloid-P, Al-P, Fe-P, Ca-P and RS-P significantly over control. The Al-P increased by 9.7, 31.4 and 9.0%; Fe-P by 21.0, 21.7 and 14.8%, and RS-P by 17.8, 21.2 and 15.8% with the application of inorganic fertilizers in combination with FYM, press mud, burnt rice husk, respectively over mineral fertilizer treatment (N150P75K75Zn25). The increase in Ca-P was 14.0, 22.5 and 12.4% in the corresponding treatments over mineral fertilizer only treatment. The total P contents were higher by 19.5% and 24.9% in FYM and press mud amended treatments, respectively compared with N150P37.5K37.5Zn25 + green manure treatment. The water soluble, exchangeable and non exchangeable K decreased significantly over their initial status after 15 cycles of rice-wheat cropping in control treatment. The amount of total K decreased significantly over its initial status after 15 years of continuous rice-wheat cultivation and none of the treatments either inorganic fertilizer treatment or inorganic plus organic manure amended treatment were able to maintain K levels close to initial status.