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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: Agricultural Meteorology × Author: Azmeena Mehjabin × Start date: 2023 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Evapotranspiration and yield estimation in Potato Crop using CROPWAT Model in Diverse Growing Environments
    (CCSHAU, Hisar, 2023-05) Azmeena Mehjabin; Surender Singh
    The field study entitled “Evapotranspiration and Yield Estimation in Potato Crop using CROPWAT Model in Diverse Growing Environments” was conducted at University Research farm of the Department of Agricultural Meteorology, CCS HAU, Hisar during rabi 2022-23 season (Lat.: 29° 10 N; Log.: 75° 46 E; Alt.: 215.2 m). The study comprised of four sowing dates i.e., D1 (8th November), D2 (18th November), D3 (28th November) and D4 (8th December) and three different varieties i.e., V1 (Kufri Bahar), V2 (Kufri Pushkar) and V3 (Kufri Lima). The experiment was laid out in split plot design with four replications. With respect to agrometeorological indices, the highest GDD, HTU, PTU, HYTU were accumulated in crop sown on 18th November (D2) and in the variety V3 (Kufri Lima). All growth factors viz., number of tubers produced per plant, tuber yield, haulm yield, dry matter was found highest in D2 among the different dates of sowing and in Kufri Pushkar among the different varieties. Evapotranspiration (ET) worked out through CROPWAT 8.0 was found to be the lesser in D2. At physiological maturity, phenology showed high positive significant correlation with GDD, HTU and PTU. WUE derived from ET and yield was recorded highest in D2 sown crop i.e., on 18th November and the higher number of negative values of the difference between canopy and air temperature in D2 revealed that it felt comparatively lesser stress. WUE showed significant positive correlation with ET and tuber yield. CROPWAT is an effective model for estimation of evapotranspiration. The results obtained from CROPWAT was consistent with the field data, indicating its reliability and accuracy. This ability to accurately estimate evapotranspiration makes CROPWAT a highly valuable and reliable tool for assessing and optimizing water use efficiency in agricultural systems and also predicting productivity and yield of the crop even before the it reaches its maturity phase and start producing the yield; provided we have an idea of the water use efficiency of the crop. Its importance in agricultural water management is shown by its reliable performance and usefulness.