Browsing by Author "KAMRUZZAMAN, MD."

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Effect of different transplanting methods on yield of Binadhan-14 (Oryza sativa L.) at late boro season under climate change
(Bangladesh Institute of Nuclear Agriculture (BINA), 2016) ISLAM, MD. MONJURUL; RAHMAN, MD. HABIBUR; ISLAM, MD. SHAHIDUL; SAHA, MAMATA; KAMRUZZAMAN, MD.; BIR, MD. SHAHIDUL HAQUE; ROH, SUG-WON; PARK, KEE WOONG
To find out the suitable planting method under climate change on the yield and yield attributes of late boro rice in Bangladesh, an experiment was conducted at Bangladesh Institute of Nuclear Agriculture (BINA) farms at boro season of 2014-15. Three different sowing methods viz., direct seeding with sprouting seed & without sprouting seed and transplanting were practised to evaluate Binadhan-14 along with one check BRRI dhan 28. Due to climate change, water level goes downwards, government wants to replace boro areas as late boro to minimize irrigation water and keep the water level constant. In this study, Binadhan-14 showed higher grain yield than BRRI dhan 28. Comparative effect of transplanting method, the highest grain yield was produced in transplanting method. Direct seeding was seven days earlier than transplanted rice. However, considering crop duration direct seeding with sprouting seed will be effective by sacrificing grain yield.
RESIDUAL EFFECT OF MODIFIED CHITOSAN POWDER ON THE NITROGEN MANAGEMENT OF BORO RICE
(Department of Soil Science, 2016-12) KAMRUZZAMAN, MD.
The experiments were carried out at the research field of Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh during the Boro season (November to May, 2016) to investigate residual effect of modified chitosan (CHT) powder on nitrogen management and yield performance of Boro rice. Two individual field experiments were done using two individual rice variety i.e. BRRI dhan28 and BRRI dhan29. The experiments were laid out in randomized complete block design (RCBD) with four replications. The experiments were comprised of five treatments having four levels of modified CHT powder. The treatments were T = Modified CHT powder @ 0.5 t/ha (applied in the previous experiment) + 2/3 rd 1 N of the recommended dose (RD), T =Modified CHT powder @ 1.0 t/ha (applied in the previous experiment) + 2/3 N of the RD, T = Modified CHT powder @ 2.0 t/ha (applied in the previous experiment) + 2/3 rd 3 N of the RD, T = Modified CHT powder @ 4.0 t/ha(applied in the previous experiment) + 2/3 rd 4 N of the RD and T =Modified CHT powder @ 0 t/ha + recommended N (control). Yield and yield contributing characters responded positively with increasing the doses of CHT powder except the following characters i.e. plant height, panicle length, total number of grains/panicle, filled grains/panicle, unfilled grains/panicle. The grain yield significantly decreased in T 5 treatment (5.47 t/ha) compared to T 5 1 (6.50 t/ha) control treatment due to the lack of nitrogen. But T treatment shows statistically identical grain yield (6.44 t/ha) to the control treatment (6.50 t/ha) in T which indicates the supplementation of N occurs in higher dose of CHT powder in T 5 treatment. Similarly straw yield (7.50 t/ha), number of effective tillers/hill (17.22) as well as biological yield (13.94 t/ha) of T 4 treatment shows statistically identical compared to the T 5 4 control treatment. The value of pH (7.01), organic carbon content (0.72%), and highest organic matter content (1.23%) in post harvest soil obtained in T 4 treatment were significantly greater than the T control treatment. From these results it can be concluded that yield and yield contributing characters of rice and some chemical properties of soil were improved due to the residual effect of modified CHT powder Taken together, our results suggest that modified CHT powder have some positive residual effect on slow releasing nitrogen supplementation, soil organic carbon and soil pH. 5 rd 2 4
SIGNIFICANT EFFECT OF MULBERRY LEAF (Morus alba) MEAL IN THE REDUCTION OF EGG-YOLK CHOLESTEROL
(HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR., 2011-08) KAMRUZZAMAN, MD.; Dr. Most. Afroza Khatun
The objective of this study was to determine the effects of various dietary levels of mulberry (Morus alba) leaf meal on production performance, egg qualities and egg yolk cholesterol. The study was conducted at the poultry farm and Dairy and poultry science laboratory, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur district. In this study, Forty-eight 30- wk-old laying hens (Hi-sex brown) were divided into 4 dietary groups each with 4 replications (3birds/replication) and offered manually prepared diets supplemented with 0, 3, 6 and 9% mulberry leaf meal for 8 weeks. Eggs were collected and weighted daily. Laying performance, egg quality and feed conversion ratio were evaluated. Results showed that the feed intake, egg production, egg weight, egg mass, feed conversion ratio, body weight and egg qualities were insignificant among the treatment groups. However, the egg yolk cholesterol concentration was significantly decreased (P<0.05) with higher levels of mulberry leaf supplementary diets. Egg yolk cholesterol was decreased at 9.4, 12.5 and 14.8% with 3, 6 and 9% level of mulberry leaf meal supplementation, respectively. Based on the results, it could be concluded that the supplementation of mulberry leaf meal up to my investigation level (9%) has potentiality in reduction of egg yolk cholesterol.