Year 2006
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Item GROWTH AND YIELD OF BORO RICE AS INFLUENCE BY WATER LEVEL AND SEEDLING NUMBER HILL-1(DEPARTMENT OF AGRONOMY, 2006-06) DHAR, SANJITItem GROWTH AND YIELD OF T. AMAN RICE VARIETIES AS AFFECTED BY SEEDLING NUMBER HILL 1 AND UREA SUPERGRANULES(DEPARTMENT OF AGRONOMY, 2006) MASUM, SHEIKH MUHAMMADA field experiment was conducted at the experimental field of Sher-e-iIangla agricultural university during July to December 2007 to find out the effect of four levels of seedling hill4 vii; I. 13 and 4 and two forms of nitrogen fertilizer-prilled urea (PU) and urea supergranules (USC) on growth, yield and yield components of modem (BRRI Dhan 44) and traditional (Nizershail) transplant oman rice. The experiment was laid out in a split- split-plot design with three replications. Urea was top dressed 58 kg N haS ' in three equal splits at 10, 30 and 50 DAT. The USC (1.8 g) was placed at 5-10cm soil depth at 10 DAT in the center of four hills in alternate rows 1 granule in one spot to supply 58 kg N haS '. Results showed that rice varieties differed significantly in all growth characters and BRRI Dhan 44 produced higher grain yield (4.85 t ha'). Two seedlings hill' gave the highest grain yield (3.96 t hi') while four seedlings hill' had the highest numbers of total tiller hill', leaf area index and total dry matter. USC performed well in growth and gave higher grain yield (12.2%) over PU. Interaction results showed that significantly higher grain yields were given by transplanting one seedling of 13RRl Dhan 44 (5.38 t hi'), application of USC in I3RRI Dhan 44 (5.08 t hi') and transplanting one seedling hilr' with application USC (4.18 t had) and finally placement of USC by transplanting one seedling hill' of BRRI Dhan 44 (5.77 hi'). The higher grain yield was attributed mainly to the number of effective tillers bill', filled grains panicle' and 1000-grain weight.Item EFFECT OF NITROGEN AND IRRIGATION MANAGEMENTS ON THE YIELD ATTRIBUTES AND YIELD OF MUNGBEAN(DEPARTMENT OF AGRONOMY, 2006) MD. ASADUZZA MANAn experiment Was conducted at the experiment field of the Department of Agronomy. Sher-e-Bangla Agricultural University: I)haka to evaluate the ciThet of nitrogen and irrigation managements on the yield attributes and yields of mungbean (V/gnu rat/ia/a lj.) cv.BARI mung-5 during the period from March 2006 to May 2006. The trial comprised often treatments such as T1 control. 12 20 kg N ha 4 as basal. 13=20 kg N ha4 as basal with one irrigation at first flowering stage, 1 4 =30 kg N ha" as basal. T5 30 kg N hzi' as basal with one irrigation at first flowering stage. •1'--40 kg N ha" as basal. 'F 40 kg N as basal with one irrigation at first flowering stage. lhasal 10 kg N ha' and 10 kg N h&' as split with one irrigation at first flowering stage, l 9=bacal 15 kg N ha'' and 15 kg N ha'' as split with one irrigation at first flowering stage and 1, 0—basal 20 kg N h& and 20 kg N ha'' as split with one irrigation at first flowering stage. Irrespective of treatment di rierenees the mungbcan plant as a pulse crop showed a lag phase in early growth stage (up to 40 DAS) while increase of growth parameters like number of leaves, leaf dry weight and steam dry weight per plant very slow. Thus, initiation of flowers (35 DAS) caused low dry matter production. Application of 30 kg N ha'' as basal with one irrigation at first flowering stage (35 DAS) improved the growth parameters significantly. This greater dry matter eventually supported the plant to produce more number of branches and pods per plant. which resulted with maximum seed yield per plant (5.53 g) or per hectare (1.65 ton). A Iiinctional positive relationship was observed among number of branches per plant. pods per plant. seeds per pod and seed yield.Item EFFECT OF MANURING AND SPLIT APPLICATION OF NITROGEN ON GRAIN YIELD AND QUALITY OF MAIZE(DEPARTMENT OF AGRONOMY, 2006) SHOUKAT, KHONDAKER YEASEN MOHAMMADAn experiment was conducted at the agronomy field laboratory of Shcr-e-Bangla Agricultural University, Sher-e-Bangia Nagor, Dhaka. during the period from March to June 2006 to study the elThct of manuring and split application of nitrogen on grain yield and quality of maize cv. F3arnali. There were four nianunal doses, namely. M 1 - Inorganic Fertilizer (IF) only. M 2 - IF + cow-dung 5 t ha NI ) - IF + cow-dung lOt ha' and M4 - IF + cow-dung 15 t ha and two split applications of nitrogen. viz. SP 1 -2 splits and SP:-3 splits. Manuring was placed in main plot and split application of nitrogen in subplot each measuring Sm X 3m In a split plot design used with three replications. Four nutrients were applied which were N, P 205 , 1(20 and Sat the rate of 115 -72 - 60 - 22.32 kg ha1 and three nutrients were supplied in the form of Urea, TSP, MP and Gypsum respectively In SP 1 basal dose of urea was applied at final land preparation, and split at 25 and split at 45 days of sowing. In SP 2 basal dose urea was applied at final land preparation, and 3 splits respectively at 25. 45 and 65 days of sowing. Inorganic fertilizers ± cow-dung 15 t ha 1 (M4 treatment) gave the best response for all the parameters, whereas inorganic fertilizer (IF) only (M 1 treatment) gave the poorest response. Grain and stalk yields ranged respectively from 5.43 to 9.02 t ha 4 and from 6.76 to 12.16 t ha" due to different manuring treatments. The highest grain yield was obtained from M4 treatment, identically followed by M.; treatment, Grain protein content 10.6 was from M1 treatment and 13.16 from M., treatment, the latter being identically followed by M, and M2 treatments: Grain N and protein contents were nearly 2 times higher than those in stalk. Three split applications of N gave higher grain yield and tended to increase nutrient content of grain and stalk over 2 split applications of nitrogen. Results of the present study showed that application of cow-dung at the rate of 10 and IS ha' together with recommended dose of inorganic fertilizers improved grain yield and quality over inorganic fertilizers alone and 3 split applications of nitrogen increased grain yield and tended to improve grain quality of maize over 2 split applications of nitrogen.Item INFLUENCE OF IRRIGATION AND NITROGEN ON THE YIELD OF RAPESEED (Brasska napus)(DEPARTMENT OF AGRONOMY, 2006) LATIF, MOHAM MAD ABDULAn experiment was conducted at the agronomy field laboratory of Sher-eBangla Agricultural University, Dhaka-1207 during the period from October, 2005 to Febniary. 2006 to examine the influence of irrigation and nitrogen on the yield of rapeseed (Brassica ;wnzs). There were four different levels of irrigation viz, no irrigation, one irrigation at 30 DAS, two irrigations at 30 and 50 DAS and three irrigations at 30.50 and 65 DAS and four levels of nitrogen viz. 0, 40, 80 and 120 kg N ha''. The experiment was laid out in split plot design with 3 replications assigning irrigation in the main plots and levels of nitrogen in the sub-plots. Irrigation and nitrogen significantly influenced the growth, development, yield and yield attributers of rapeseed. Plant height, thy matter, branches plani'. length of main infloreseenee, number of siliquae in the main intlorescence, siliquae plant', siliqua length, seeds weight of 1000 seeds, seed yield, stover yield. harvest index and oil content were significantly influenced by both irrigation and nitrogen. Among the irrigation treatments, three irrigations- one at 30 DAS (preflowering stage), second at 50 DAS (siliquae formation stage) and another at 65 DAS (siliquac development stage) resulted the greater growth parameters like plant height, dry matter weight and the yield components like branches plant'', length of main inflorescence, number of siliquae in the main infiorescence, siliquae plant', siliqua length, seeds siliqua'. 1000 seed weight, seed yield, stover yield and harvest index. However, irrigation levels influenced the oil content. Three irrigations at 30, 50 and 65 DAS showed the best performance in all respect. The highest seed yield (1455.96 kg ha'') was obtained at three irrigal ions while control treatment gave the lowest yield (348.05 kg ha"). The results revealed that nitrogen at the rate of 120 kg h& showed the best results in all respect except oil content. The highest seed yield (1347.72 kg ha") was obtained at 120 kg N ha' while control treatment produced the lowest yield (408.5 kg ha"). The interaction effect of irrigation and nitrogen revealed that three irrigations one at 30 DAS (pre-flowering stage), second at 50 DAS (siliqua formation stage) and another at 65 DAS (siliqua development stage) in combination with 120 kg N ha'' showed the best performance in most of the cases whereas, the combination effect of control treatments showed the least perfomianee.Item EFFECT OF IRRIGATION ON THE GROWTH AND YIELD OF SOYBEAN (Glycine maxL.) VARIETIES(DEPARTMENT OF AGRONOMY, 2006) JAHAN, SHIRIN ROWSHAN ARAAn experiment was conducted at the Agronomy Field of Sher-e-Bangla Agricultural University, Dhaka-1 207 during the period from December, 2005 to April, 2006 to study the responses of soybean varieties to the time of irrigation. The experiment was carried out with three soybean varieties viz. Shohag, Bangladesh soybean-4 and BARI soybean-5 and five levels of irrigation viz, no irrigation, irrigation at elongation of main stem (EMS), irrigation at flowering (F), irrigation at pod development (PD) and one irrigation each at EMS±F-fPD stages of crop growth. The experiment was laid out in split plot design with three replications. The results showed that variety and irrigation level significantly influenced the growth, development, yield characters and yield of the soybean. Among the three varieties, BARI soybean-5 influenced plants to have maximum dsy matter, number of branches plant' 1 , pod length, number of seeds pod', seed yield, stover yield, biological yield and harvest index. But the plant height and number of pods plant' 1 were found highest in Bangladesh soybean4. The grain yield status among the three varieties in this experiment was that the BARI soybean-5 out yielded Shohag and Bangladesh soybean-4, by 6.93% and 0.28%, respectively. Irrigation at EMS+F+PD stages increased yield with higher values of harvest index as the yield attributes like branches plani', pods plant 4 , seeds pod', pod length and 100- seed weight were higher. Application of irrigation at different times significantly Ill increased seed yield ranging from 23.94% to 96.92% compared to the control (no irrigation). In most of the cases BARI soybean-5 coupled with irrigation at EMS+F+PD was found to be influenced for better growth and yield. The highest seed yield was found with the interaction of BAR! soybean-5 with irrigation given at EMS+F+PD stages. This was achieved due to rna'cjmum number of branches plani', number of seeds pod' and greater pod length. The higher yield attributes were achieved with abundant production of dry matter due to irrigation at EMS+F+PD stages.Item INTERCROPPING FODDER CRASSPEA WITH WHEAT AT DIFFERENT FERTILIZER DOSES AND SEED RATES(DEPARTMENT OF AGRONOMY, 2006) ISLAM, MD. ENAMULAn experinient on the performance of wheat - grasspea intcrcropping at different fertilizer dose (100 and 120% of recommended dose for wheat) and seed rates of grasspea (100%. 80%. 60%, 40% and 20%) was conducted at the Agronomy Field, Sher-e-Bangla Agricultural University. Dhaka-1207 during the period from December, 2005 to March. 2006. The experiment was laid out in a randomized complete block design with three replications. Significantly higher yields of wheat (3.00 - 3.0$ I/ha) were obtained with wheat, wheat 100% ± grasspea 20% 4 fertilizer 100% and wheat 100% 1 grasspea 100% + fertilizer 120% treatments. Significantly the highest fodder yield (1.47 (/ha) was obtained with the treatment of wheat 100% + grasspea 100% + fertilizer 120%, The best land equivaleni ratio (LER), benefit: cost ratio (13CR) and tolal net return were 1.96, 1.558 and 14466.50 Tk./ha respectively and these were obtained with the treatment of wheat 100% + grasspea 100% + fertilizer 120%. So, fodder grasspea may be intercropped with wheat using the recommended seed rate under 120% recommended fertilizer dose of wheat.Item GROWTH AND YIELD OF WHEAT (Triticum aestivum L.) AS INFLUENCED BY NITROGEN AND SEED RATE(DEPARTMENT OF AGRONOMY, 2006) ROY, KAKALIAn experiment was conducted at the Agronomy Field of Sher-e-Rangla Agricultural University, Dhaka. during November to March. 2005-2006 to investigate the effect of nitrogen and seed rate on the growth. yield attributes and yield of wheat cv. Shourav. The treatment consists of four nitrogen levels (0. 60, 100 and 140 kg hi') and four seed rates (80, 100, 120 and 140 kg hi'). The experiment was laid out in a split-plot design with three replications. Experiment results showed that nitrogen had significant effect on plant height, dry matter accumulation, crop growth rate, relative growth rate, number of total tillers per in2 , number of effective tillers per 7fl2• L.) AS spike length, number of fertile spikelets spikc', number of unfertile spikelets spike', 1000 grain weight, grain yield, straw yield and harvest index. The results revealed that nitrogen at the rate of 100 kg hi' showed the best performance in all the parameters studied. The highest grain yield (3.3 t hi') and straw yield (4.36 t hi') was obtained from 100 kg N had while control treatment gave the lowest grain and straw yield of 2.19 and 3.1 ton ha1 respectively. The grain and straw yields increased correspondingly with the increase of N frorn C) to 100 kg hi' and decreased thereafter. Seed rate of 120 kg ha 1 gave the highest grain yield (3.08 t hi') and seed rate of 140 kg ha1 gave the highest straw yield (4.27 t hi') of wheat. Among the various interactions, nitrogen at the rate of 100 kg along with 120 kg seed ha produced the highest grain yield of 3.65 t ha 1.Item EFFECT OF SEEDLING AGE ON THE YIELD OF MODERN VARIETIES OF AROMATIC RICE(DEPARTMENT OF AGRONOMY, 2006) HOSSAIN, MOHAMMAD ANWARAn experiment was carried out at the Agronomy Field Laboratory, Sher-e-Bangla Agricultural University, Dhaka during the period from July to I)ecember, 2006 to study the effect of seedling age on the yield of aromatic varieties. The experiment consisted of two levels of treatments viz. 4' variety (BRRI dhan37 and BRRI dhan38) and seedling age (IS, 20, 25, 30, 35 and 40 days old). The experiment was laid out in a randomized complete block design (Factorial) with three replications. The results revealed that BRRI dhan38 performed the best than BRRI dhan37. The highest grain yield (3.08 t/ ha), number of total tiller/ hill, effective tiller! hill. 1000-grain weight, harvest index and the longest panicle were attained from BRRI dhan38. Seedling age also significantly influenced all crop characters studied. The results also revealed that 30 days old seedlings showed the best performance than other seedling ages treatment. The highest grain yield (3.3 tiha), number of effective tillers/ hill, number of total spikelets/ panicle, grain! panicle, I 000-grain weight and the longest panicle were obtained from 30 days old seedlings whereas the highest plant height, number of total and non-effective tiller were found in 15 days old seedlings. Combination of BRRI dhan38 with 30 days old seedlings was found to be the best in respect of sterile spikelets! panicle. 1000-grain weight and grain yield.Item EFFECT OF NITROGEN AND PHOSPHORUS ON TIlE YIELD, YIELD CONTRIBUTING CHARECTERS AND SEED QUALITY OF RAPESEED (Bmssica campestris) CV. SAU Sarisha-I(DEPARTMENT OF AGRONOMY, 2006) HASAN, MOHAMMAD KAMRULAn expernient was conducted at Sher-e-Bangla Agricultt rat University. Dhaka- 1207 tAt, rim! the Rabi season ( )ctober to February) of 2005-2006 to study the effect at' different levels of nitrogen a nd phosphorus oil the yield, yield contributing characters and seed qua! iv iii newly developed rapesced (Brass/cc: ('cunpextris) line SAIJ-C-177 . The experiment comprised of four levels of nitrogen viz. 0. 60. 120 and ISO kg N ha" and four levels of phosphoi'us viz. 0. 60. 90 and 120 kg P 205 ha''. The experiment was laid out in a randomized complete block design (factorial) with three replications. Nitrogen showed significant effect oil yield, yield components and oil yield of 'ape.'.ecd except the number of plant ni', number of branches planf t and oil coittent. Application of n trogeti @ 120 kg ha'' produced the highest plant height. si I iquac plant'. siliqua length, seeds siliqua". 1000-seed weight, seed yield, stover yield, biological yield. harvest index and oil yield. Phosphorus had siQniticant effect on yield, yield attributes and oil yield of rapeseed exCepi number of plant m' and branches plant'. Application of phosphorus Q 90 kg P1O l,zt" gave the highest plant height. siliquac plant", siliqua length, seeds siliqua 4 , 1000-seed wçift seed yield. slover yield, biological yield, harvest index, oil content antI oil yield. ComN ned effect of nitrogen along with phosphorus showed sign i iicant effect on all 111e p:tralneter of rapeseecl except number ul' plant in and branches plan( _The comb nat ion ol 120 k!: N ha ' and Ut) kg PO produced Ii ighest plant height, si I iquzte pla mit'. siliqtta lenuth. seeds siliqua". 1000-seed weight, seed yield. stover yield, biological yield, harvest index, oil content and oil yield. From the above flndings it is noted that application of 120 kg N & 90 kg P,O/ha coukl he 01)tilntirn dose for increasing seed & oil yield of rapesecd cv. SAU Sarisha- I.