Thumbnail Image

Theses

Browse

20222
Reset filters
End date: 2023 × Start date: 2022 × Type: Thesis × Thesis Type: M.Tech. ×
Reset filters

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ThesisItemOpen Access
    Performance of organically cultivated papaya under different irrigation levels and mulching methods
    (CCSHAU Hisar, 2022-09) Baljeet Singh; Mukesh Kumar
    An experiment was conducted at research field of Deendayal Upadhyay Centre of Excellence for Organic Farming, CCS HAU, Hisar during the year 2021-22 to study the effect of different irrigation levels and mulching methods on performance of organically cultivated papaya. The experiment comprised of twenty one treatments under the drip irrigation method with combination of three different irrigation levels viz. 50%, 75% and 100% of crop water requirement and seven mulching methods. The results showed that the plant height (240.73 cm), stem girth (46.03 cm), crown diameter (245.40 cm), number of flowers (65.67), number of fruits (42.67), yield per plant (54.30 kg) and total yield (135.75 t ha-1) were observed maximum for meeting 100% of crop water requirement with the application of 10 cm thick straw mulch in two-meter diameter around the plant and minimum for meeting 50% of crop water requirement without mulch condition. The soil moisture (20.18%) was found maximum for meeting 100% of crop water requirement with the application of plastic mulch in twometer diameter around the plant and minimum for meeting 50 % of crop water requirement without mulch condition. From the results, it is also observed that the irrigation water use efficiency (59.53 kg m-3) was found maximum for meeting 50 % of crop water requirement with 10 cm thick straw mulch in two-meter diameter around the plant and minimum (42.64 kg m-3) for meeting (42.64 kg m-3) 100% of crop water requirement without mulch under drip irrigation system.
  • Thumbnail Image
    ThesisItemOpen Access
    Development and Performance Evaluation of Machine for Dehulling of Hempseed (Cannabis sativa L.)
    (hisar, 2022) Mittal, Vipul; Gupta, Ravi
    The study was conducted to develop a hempseed dehuller machine for dehulling of hempseed (Cannabis sativa L.). The development of the machine was based on a 2D design made from AUTOCAD software. The raw hempseeds were cleaned and graded for observation of their engineering properties. To study the effects of dehulling process variables on the dehulling efficiency of hempseeds, two seed grades: Medium (3 – 3.5 mm), Large( ≥ 3.5 mm), four levels of valve opening (100, 75, 50 and 25 % ) and five levels of initial seed moisture content (2-4, 4-6, 6-8, 8-10, 10-12 %) (wb) were selected by conducting preliminary trials. Statistical analyses viz., correlation and regression analysis of the responses was performed to estimate the coefficients of the fitted equation of the responses and to check the significance of the regression coefficients of independent and interaction variables, respectively. A three-phase (0.75 kW) electric motor was used for the power supply of the machine. The performance of the dehuller was found optimum at 2100 rpm, feed valve opening of 50% and fed with raw hempseeds of medium grade at 6-8 % MC range. At these levels of independent variables the throughput capacity, dehulling efficiency, output capacity and broken were found to be 67.4 kg/h, 38.7%, 26.25 kg/h and 8.84%. The break-even point, benefit-cost ratio and payback period for the machine were found to be 4223 units of hemp kernel, 1.029 and 0.237 years respectively. The developed machine for dehulling of hempseed was found energy-efficient, economically usable, and capable of maintaining the good quality of hempseed kernels.