Thumbnail Image

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.

Browse

20191
Reset filters
Subject: Farm, Machinery and Power × Author: Aman × Start date: 1998 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Comparative performance evaluation of different types of sprayer in cotton crop
    (CCSHAU, 2019) Aman; Anil Kumar
    Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) were evaluated for its performance under local agro-climatic conditions. To select suitable operational parameters the sprayers were initially evaluated at three pressure levels and three heights and corresponding discharge, spray angle, swath width and spray distribution pattern were observed under laboratory conditions and the optimized value of pressure and target height were selected for the evaluation of the sprayers in field conditions. Self-propelled high clearance sprayer, tractor operated gun sprayer and lever operated knapsack sprayer provided best results at a pressure of 3 kg cm-2 and a height of 54.5 cm, 15 kg cm-2 and 54.5 cm and 3 kg cm-2 and 53 cm, respectively. Under field conditions, the NMD, VMD and UC of Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) were found to be 55.57 μm, 198.34 μm, 3.58 and 60.73 μm, 213.18 μm, 3.60 and 52.98 μm, 217.72 μm, 4.35, respectively. The area covered by droplets by self-propelled high clearance sprayer was 11.75 and 43.17 % higher than tractor operated gun sprayer (GS) and lever operated knapsack sprayer (KS), respectively. The results were found significant (p= 0.0007). The volume of spray deposition by Selfpropelled high clearance sprayer (HS) was significantly (p= 0.0026) 6.58 and 19.51 % higher than that of GS and KS, respectively. The volume of spray deposition on top side of leaves was significantly higher than bottom side of leaves in all cases irrespective of types of sprayer. The bio-efficacy of selfpropelled high clearance sprayer (50.63 %) was higher than tractor operated gun sprayer (49.11 %) and lever operated knapsack sprayer (47.57 %). The field capacity of Self-propelled high clearance sprayer (HS), tractor operated gun sprayer (GS), and lever operated knapsack sprayer (KS) was found to be 1.44, 0.82 and 0.078 ha h-1 with efficiency of 67.74, 78.63 and 82.12 %, respectively. The cost of operation for HS, GS and KS was found to be 632.76 Rs. ha-1, 504.78 Rs. ha-1 and 656.73 Rs. ha-1, respectively. The B:C ratio was found to be 1.11, 1.98 and 1.83 for Self-propelled high clearance sprayer, tractor operated gun sprayer, and lever operated knapsack sprayer. Self-propelled high clearance sprayer is a recommended technology and showed best results in terms of uniformity, droplets size, area covered by droplets, volume of spray deposition, bio-efficacy and highest field capacity.