http://localhost:8080/handle/123456789/2673 2026-04-18T12:37:10Z http://localhost:8080/handle/123456789/4937 EFFECT OF SULPHUR AND PHOSPHORUS ON THE GROWTH AND YIELD OF SOYBEAN (Glycine max L.) AHAMED, MOHAMMAD NAYEM The experiment was conducted during the period from January, 2018 to May 2018 to study the effect of sulphur and phosphorus on the growth, yield and nutrient component of BARI Soybean-6 (Glycine max L.). In this experiment, the treatment consisted of four Levels of sulphur viz. 0, 20, 40 and 60 kg S ha 60 and 80 kg P ha -1 -1 and four levels of phosphorus viz. 0, 40, . The experiment was laid out in a Randomized Complete Block Design with three replications. The collected data were statistically analyzed for evaluation of the treatment effect. Results showed that a significant variation among the treatments in respect majority of the observed parameters. The highest plant height (44.68 cm and 61.90 cm at 30 DAS and 60 DAS respectively) was found from P + 80 kg P ha -1 ) combination treatment. The maximum number of leaves plant from the individual treatment of S and P were found at S 3 (60 kg S ha -1 ) and P ) treatment whereas the maximum number of leaves plant -1 (10.26 and 17.20 at 30 DAS and 60 DAS respectively) was found in P (3.61), seeds plant -1 3 S 3 3 S 3 3 (60 kg S ha -1 (80 kg P ha treatment. The highest values of seeds pod (59.24), weight of 100 seed (13.50 g) observed in S . Grain yield of soybean was influenced significantly due to the application of phosphorus and sulphur. The highest grain yield (1.96 t ha -1 ) was found in where 60 kg S ha -1 (S ) was applied and the lowest was recorded in P 0 treatment. The highest seed yield (2.08 t ha 3 ) was observed from S 3 P 3 treatment combination. The combined use of 40 kg S ha -1 3 -1 and 60 kg P ha along with recommended doses of other fertilizer would be beneficial to increase the seed yield of soybean variety BARI soybean-6. A Thesis Submitted to the Department of Soil Science Sher-e-Bangla Agricultural University, Dhaka in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SOIL SCIENCE 2018-01-01T00:00:00Z http://localhost:8080/handle/123456789/4765 EFFECT OF BIOCHAR ON YIELD AND QUALITY OF POTATO TUBER MOLLICK, MD. OMAR ALI The present experiment was conducted in the research field of Sher-e-Bangla Agricultural University (SAU), Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh during the period from November, 2017 to March, 2018 in rabi season. The objective was to observe the effect of biochar on the yield and quality of potato tuber and to find out the optimum dose of biochar along with inorganic fertilizer for achieving the maximum yield of potato. The experiment consist of 9 treatments as T 1 = Control (no chemical fertilizer and biochar), T 2 = RFD (Recommended Fertilizer Dose); T 3 = RFD + Biochar @ 2.5 ton ha = RFD + Biochar @ 5.0 ton ha -1 ; T 5 = RFD + Biochar @ 7.5 tonha -1 ; T 6 of RFD + Biochar @ 2.5 ton ha -1 ; T 7 = ½ of RFD + Biochar @ 5.0 ton ha -1 = ; T 8 = ½ of RFD + Biochar @ 7.5 ton ha -1 ;T 9 = Biochar @ 10 tonha -1 . The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The tested variety was BARI Alu-7 (Diamant). Data were collected on different yield attributes, growth and quality of potato and postharvest soil analysis. A significant variation among the treatments in respect of majority of the parameters was observed. The maximum plant height was recorded from RFD + Biochar @ 7.5 ton ha -1 treatment. The highest number of stem hill and number of tubers hill -1 were recorded from T 6 treatment. The maximum weight of tubers (0.51 kg hill -1 ) and yield of tubers (35.76 ton ha treatment. The minimum yield of tubers (14.51t ha -1 -1 -1 1 -1 ; T 4 / 2 ) were produced from T 5 ) was produced from control treatment. The maximum data of quality parameters like % dry matter content (25.41), specific gravity (1.12) were also recorded in T 5 treatment. From postharvest soil analysis, the highest organic carbon (0.98%), organic matter (1.69%) was recorded in biochar @ 10 ton ha -1 treatment. From this study, it may be concluded that biochar had significant positive effect on yield and quality of potato and postharvest soil was improved considerably due to application of biochar along with inorganic fertilizers. A Thesis Submitted to the Department of Soil science Sher-e-Bangla Agricultural University, Dhaka-1207 in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SOIL SCIENCE SEMESTER: JANUARY- JUNE, 2018 2018-06-01T00:00:00Z http://localhost:8080/handle/123456789/4652 EFFECT OF RHIZOBIUM INOCULATION, NITROGEN AND PHOSPHORUS APPLICATION ON THE GROWTH, YIELD AND NODULATION OF SOYBEAN (Glycine max L.) LUBNA, MEHERUN NESA The experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from January 2018 to May, 2018 to study the effect of Rhizobium inoculation, nitrogen and phosphorus application on the growth, yield and nodulation of soybean (glycine max L.). The experiment comprised of three factors viz. Factor A: Rhizobium inoculation; Factors B: Levels of Nitrogen (3 levels)- viz. 0, 25 and 50 kg N ha -1 denoted as N 0, N 25 and N ; Factor C: Levels of Phosphorus (2 levels) – viz. 0 and 40 kg P ha -1 denoted as P 0 and P 50 40 P 0 : 0 kg P ha -1 . The three factors experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The highest plant height (51.64 cm and 68.18 cm), number of leaves (17.13 and 24.17) and branches plant -1 (4.07 and 10.50) at 30 DAS and 60 DAS respectively were also observed in RI 1 N 2 P 1 treatment combination. The highest weight of dry shoot (2.93 gm plant ), dry root (0.66 gm plant -1 ) and total plant weight (11.88 gm plant -1 ) were respectively in RI 1 N 2 P treatment. The application Rhizobium inoculant along with N and P showed positive effect on the number of pods plant 1 -1 , number of seed pod -1 , number of seeds plant -1 , 100 seed weight (gm), seed wt. plant -1 (gm) grain yield (t ha -1 ) and stover yield (t ha -1 ). The maximum number of nodule plant -1 (49.64), size of effective nodule (3.60 mm in diameter) were observed in RI 1 N 2 P treatment. The highest seed yield ((2.06 t ha -1 ) was observed from RI 1 N 2 P 1 1 treatment which was statistically similar with RI treatment. It may be concluded that application of 25 kg N ha -1 & 90 kg P ha along with rhizobium inoculation can be more beneficial for the farmers to get maximum yield. -1 -1 1 N 1 P 1 A Thesis Submitted to the Department of Soil Science Sher-e-Bangla Agricultural University, Dhaka in partial fulfilment of the requirements for the degree of MASTER OF SCIENCE (MS) IN SOIL SCIENCE Semester: January - June, 2018 2018-06-01T00:00:00Z http://localhost:8080/handle/123456789/3329 EFFECT OF BIOCHAR APPLICATION ON HEAVY METAL ACCUMULATION IN RED AMARANTH (Amaranthus spp.) GROWN IN CONTAMINATED SOIL NUMAN, ABU BAKAR A pot experiment was conducted at the net house of the research farm of Sher-eBangla Agricultural University, Dhaka-1207 during the period from JanuaryJune 2018. The experiment was conducted to observe the effect of biochar (BC) on cadmium (Cd) accumulation in red amaranth (Amaranthus spp.) and on soil health. In this experiment, the treatment consisted of four doses of BC viz. BC 0 = no BC, BC 1 =1% BC of soil wt., BC 2 = 2% BC of soil wt., BC 4 = 4% BC of soil wt. and Cd 0 = no Cd, Cd 5 = 5 ppm Cd, Cd 15 = 15 ppm Cd. The experiment was laid out in Complete Randomize Design (CRD) with five replications. The collected data were statistically analyzed for evaluation of the treatment effects. Results showed that significant variations were found among the treatments for the observed parameters such as Cd in stem, leaf and root, total and available Cd in bulk and rhizosphere soils, soil pH, bulk density and porosity. The lowest Cd accumulation in plant stem, plant leaf and plant root was found in the treatments with 4% BC of soil wt. addition. Higher amount of total Cd in bulk and rhizosphere soil was observed in the treatments of higher amount of BC .However, lower amount of bio-available Cd was found in soils with higher amount of BC indicating that stabilization of Cd is promoted by BC. Biochar application also reduced the bulk density and increased porosity and pH indicating improved soil health for better crop production in an acid soil. It was observed from this study that red amaranth accumulated significant amount of Cd even at low concentration (5ppm) which is alarming. As BC reduced the Cd accumulation significantly it can be concluded that metal stabilizer like BC may be used as soil amendment in reducing the heavy metal uptake by leafy vegetables grown in contaminated soil A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207 In partial fulfillment of the requirements for the degree of II MASTER OF SCIENCE (MS) IN SOIL SCIENCE 2018-01-01T00:00:00Z