DEPARTMENT OF AGRICULTURAL & INDUSTRIAL ENGINEERING (AIE) http://103.7.193.12:8080/xmlui/handle/123456789/28 2026-04-17T16:56:40Z 2026-04-17T16:56:40Z FAHMIDA, MAISHA http://103.7.193.12:8080/xmlui/handle/123456789/1696 2022-05-16T09:57:57Z 2017-06-01T00:00:00Z

ANALYSIS OF EVAPOTRNSPIRATION AND RAINFALL FOR AMAN RICE CULTIVATION IN DINAJPUR, BANGLADESH FAHMIDA, MAISHA Long-term climatic variability influences crop evapotranspiration as well as crop production. This study was carried out to analyze the evapotranspiration and rainfall for beneficial planning of aman rice cultivation in Dinajpur, Bangladesh. This study assessed the impacts of climate change on actual evapotranspiration (ETc) of three popular aman rice varieties i.e., BR11, BR22 and BRRI dhan49. Daily climatic data like rainfall, daily maximum and minimum temperature, maximum and minimum relative humidity, wind speed and sunshine hour for a period of 20 years (1991–2010) were collected from the Bangladesh Meteorological Department, Dhaka, Bangladesh. Reference crop evapotranspiration (ETo) was determined by the FAO Penman-Monteith method. Actual crop evapotranspiration (ETc) of the three rice varieties at different growth stages were determined. MAKESENS trend model was used for determining rainfall trend and ETc trend. Weibull’s method was used for probability analysis and the expected rainfall and Actual evapotranspiration (ETc) at 75% probability level were estimated for different growth stages of those three rice varieties. It was found quite effective to predict the water availability for aman rice cultivation and to indicate the requirement of supplemental irrigation. Variation of crop efficient (Kc) and ETo were found. ETc varied at different growth stages over the total growing season. After probability analysis, it was clear that BR11 required supplemental irrigation of 27 mm from ‘25th July to 2nd September’ (development stage), 19 mm from ‘3 rd September to 7th October’ (mid stage) and 9 mm from ‘8 th October to 22th October’ (late stage) in Dinajpur district, when transplanted between 15th June to 24th July. Similarly, for BR22, as it was transplanted between 30th June to 8th August, then supplemental irrigation of 49 mm and 38 mm was needed from ‘18th September to 22 th October’ (mid stage) and from ‘23th October to 6th November’ (late stage) respectively. Finally, for BRRI dhan49, as it was transplanted between 21th June to 10th July, then supplemental irrigation of 4 mm was needed from ‘25th August to 28th September’ (mid stage). After analyzing trend through MAKESENS trend model, it was observed that most of the rainfall curves had decreasing trend and ETc curve had increasing trend. It will enable to optimize utilization of valuable water resources and help to create a better irrigation schedule for BR11, BR22 and BRRI dhan49 for their successful cultivation. This results can play an important role in sustainable irrigation water management under changing climate and helps to establish effective water schedule for aman rice cultivation. A THESIS BY MAISHA FAHMIDA Student no. 1505273 Session: 2015-2016 Semester: January-June, 2017 Submitted to the Department of Agricultural and Industrial Engineering, Hajee Mohammad Danesh Science and Technology University, Dinajpur. In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN IRRIGATION AND WATER MANAGEMENT

2017-06-01T00:00:00Z BARMA, RATAN KUMAR http://103.7.193.12:8080/xmlui/handle/123456789/1695 2022-05-16T09:55:08Z 2016-12-01T00:00:00Z

STUDY OF WATER QUALITY FOR IRRIGATION AT BIRGANJ UPAZILLA IN DINAJPUR DISTRICT BARMA, RATAN KUMAR A laboratory investigation was carried out to assess the suitability for irrigation purpose of 50 groundwater samples collected from different Deep Tubewells (DTW) at different locations of Birganj upazilla of Dinajpur district during irrigation period January-Aril 2017 most of the water sapless were suitable for irrigation purposes based on pH, TDS, EC, Ca, Na, K, PO4, SO4, Cl, Fe, MN and Cu content. Analyses were included pH, EC, TDS (total dissolved solids), cations (Ca2+, Mg2+, Na+, K+, Cu2+, Mn2+, Fe3+) and anions (HCO3 - , SO4 2-, PO4 3- and Cl- ). Several variables such as SAR (sodium adsorption ratio), SSP (soluble sodium percentage), Hardness (HT), permeability index (PI), Kelly’s ratio, and potential salinity to evaluate the suitability of groundwater for irrigation purpose. Almost all the water samples were within the recommended pH value for irrigation and had a great impact on crop production. 15 samples were excellent, 35 samples were good for irrigation purpose in respect to EC. For TDS all samples except 7 samples were considered as ‘freshwater’ for irrigation. Based on SAR and SSP values, all samples were classed as ‘excellent’ categories for irrigation. On the basis of Ca, K, Fe and Cu, content the entire water samples can safely be used for irrigation and would not affect the soils. Overall observation of the study was that groundwater samples were found suitable for irrigated agriculture with same exception. STUDY OF WATER QUALITY FOR IRRIGATION AT BIRGANJ UPAZILLA IN DINAJPUR DISTRICT A THESIS BY RATAN KUMAR BARMA STUDENT NO.1505288 SESSION: Thesis Semester: July/December 2016 Submitted to the Department of Agricultural and Industrial Engineering, Faculty of Engineering Hajee Mohammed Danesh Science & Technology University, Dinajpur In partial fulfillment of the requirements for the degree of

2016-12-01T00:00:00Z RAHMAN, SHAKE SHAHIDUR http://103.7.193.12:8080/xmlui/handle/123456789/1694 2022-05-16T09:48:15Z 2018-12-01T00:00:00Z

CONSTRUCTION AND PERFORMANCE EVALUATION OF A POND SLUDGE REMOVER RAHMAN, SHAKE SHAHIDUR A THESIS BY SHAKE SHAHIDUR RAHMAN Examination Roll No.: 1605554 Session: 2016-2017 Thesis Semester: July-December, 2018 Submitted to the Department of Agricultural and Industrial Engineering Hajee Mohammed Danesh Science & Technology University, Dinajpur In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN IRRIGATION AND WATRER MANAGEMENT

2018-12-01T00:00:00Z MOSIUR RAHMAN, MD. http://103.7.193.12:8080/xmlui/handle/123456789/1693 2022-05-16T09:44:30Z 2019-06-01T00:00:00Z

FABRICATION OF SOLAR OPERATED PESTICIDE SPRAYER AND MEASUREMENT OF INCLINATION ANGLE EFFECT OF THE SOLAR PANEL MOSIUR RAHMAN, MD. Agriculture is the backbone of Bangladesh. In Bangladesh farms generally two types of spray pumps are used for spraying hand operated spray pump and fuel operated spray pump, of which hand operated spray pump is the most popular. The main disadvantage of hand worked spray pump is that the user can’t use it for more than 5-6 hours nonstop as he gets tired after some hours, where as fuel worked spray pump needs fuel which is costly and accessibility of fuel is not easy at rural places. At the same time it exhausts carbon dioxide as pollutant which is harmful to the environment. In such condition we should reflect to move near some non-conventional energy. Seeing it, solar energy would be one of the options. This development is about pesticides sprayer in agriculture, which uses solar energy as a source of power for spraying. Fabricated the solar pesticide sprayer, evaluate the performance of the sprayer and compare to the hand operated sprayer and cost analysis of the sprayer. The solar operated pesticide sprayer consists of a solar panel of 20 watt capacity, a 12 volt DC battery, charged by solar energy received by solar panel, a DC motor operated by the battery, a pump to spray the pesticides and tank of 16 liters to hold the pesticide. Solar pesticide sprayer facilitates effortless operation. The entire unit is portable and operated by one person or operator. Solar panel on the head of the worker which gives guard from high solar strength. This project reduce the spraying time and cost of spraying. The solar sprayer was required 5 minute 18 second to apply pesticide in 5 decimal field. This time was almost half compare to the hand operated sprayer. The solar sprayer works on 4-5 bar but hand operated sprayer works on 1.5- 2 bar. The solar panel of the pesticide sprayer produces maximum voltage, current and power in 300 inclination angle and the lowest output in 600 inclination angles. Solar pesticide sprayer can run 3 to 4 hours more after 5 hours of operation in full solar intensity which ultimately provides spraying operation facility at night. This sprayer can iii be most often used at various locations such as farms, gardens although it can become more popular in rural areas as well. It is quite economical and eco-friendly as it uses solar energy which can be easily affordable by small and marginal farmers. Further, its power can also be used for multipurpose applications such as charging the battery of mobile, operating the radio and lighting the domestic light etc., which makes it economically viable technology. A THESIS BY MD. MOSIUR RAHMAN REGISTRATON NO.: 1805122 SEMESTER: JANUARY-JUNE/2019 SESSION: 2018 Submitted to the Department of Agricultural and Industrial Engineering Faculty of Post Graduate Studies Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200 MASTER OF SCIENCE (MS) IN FARM POWER AND MACHINERY DEPARTMENT OF AGRICULTURAL AND I

2019-06-01T00:00:00Z