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    EFFICACY OF INTEGRATED NITROGEN AND IRRIGATION MANAGEMENT ON THE YIELD AND YIELD ATTRIBUTES OF BLACKGRAM
    (DEPARTMENT OF AGRONOMY, 2007-06) ISLAM, MOHAMMAD NAZRUL
    An experiment was carried out at Sher-e-Bangla Agricultural University farm; Dhaka to investigate the efficacy of integrated nitrogen and irrigation managements on the yield attributes and yields of blackgram cv. BARI mash-3 (Vigna mungo L.) cv. BARI mash-3 during the period from March 2006 to May 2006. The trial comprised of ten treatments such as T1= No fertilizer and no irrigation (control), T2 = 20 kg N ha-1 as basal, T3 = 20 kg N ha-1 as basal with one irrigation at first flowering stage, T4 = 30 kg N ha-1 as basal, T5 = 30 kg N ha-1 as basal with one irrigation at first flowering stage, T6 = 40 kg N ha-1 as basal, T7 = 40 kg N ha-1 as basal with one irrigation at first flowering stage, T8 = 10 kg N ha-1 as basal and split 10 kg N ha-1 with one irrigation at first flowering stage, T9 = 15 kg N ha-1 as basal and split 15 kg N ha-1 with one irrigation at first flowering stage and T10 = 20 kg N ha-1 as basal and split 20 kg N ha-1 with one irrigation at first flowering stage. Result revealed that nitrogen and irrigation influenced significantly on most of the growth, yield parameters and yield of blackgram. Plant height, number of branches per plant, number of leaves per plant, seeds per pod, leaf dry weight and stem dry weight increased significantly with 40 kg N ha-1 as basal with one irrigation at first flowering stage (35 DAS).This greater dry matter eventually supported the plant to produce more number of branches and pods per plant, which resulted in maximum seed yield per plant (10.45 g) or per hectare (1.86 ton). A functional positive relationship was observed among number of branches per plant, 1000-seed weight, pods per plant, and seeds per pod with seed yield
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    NODULATION, GROWTH AND YIELD OF MUNGBEAN AND BLACKGRAM AS AFFECTED BY FERTILIZER MATERIALS
    (DEPARTMENT OF AGRONOMY, 2007) RATNA, RAZIA SULTANA
    An experiment was carried out at the Sher-e-Bangla Agricultural university fbirn: Dhaka to investigate the nodulation, growth and yield of mungbean and blackgram as affected by fertilizer materials during the period from March 2007 to June 2007. The trial comprised of two crops and five fertilizer treatments such as C3 mungbean and C hlackgram, F1 = no fertilizer (control). F, = chemical fertilizer (NPKB), F.I = inoculum. F4 cowdung, F= PKI- inoculum. The experiment was laid out in a split plot design with three replications where two craps were assigned in the main plot and five fertilizer materials as the sub-plot. Plant height. nodulation. root length. root dry weight. total dry matter production, number of branches plant". pods plant", number of seeds pod',lOOO-seeds weight, shelling percentage, seed yield. stover yield, biological yield and harvest index were tested for different treatments. Results revealed that inoculum and PK+ inoculum influenced significantly on the growth, yield parameters and yield of mungbean and blackgram. Plant height, root length, number of branches plant" and pods plant ' were higher in blackgram than mungbean. Number of nodules plant'. total dry matter production, pod length. number of seeds pod" and yield were higher in mungbean than blackgram. inoculum alone or in combination with PK increased plant height. total dry matter production, leaf area index. number of branches plant", number of seeds pod' and yield. The highest seed yield (1.59 ha") was given by mungbean with inuculum treatment that was similar to mungbean with PK+inoculum (1.43 t hi') and chemical fertilizer (NPKB) (1.33 t ha") and blackgram with inoculum (1.35 t ha"). The higher dry matter eventually supported the plant to produce maximum number of branches and pods per plant, which resulted in maximum seed yield.
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    INFLUENCE OF CLONAL FILLERS AGE ON GROWTH AND YIELD OF iNBRED AND HYBRID RICE
    (DEPARTMENT OF AGRONOMY, 2007) MD. OBALDULLAH
    A field experiment was carricd out at Agronomy Field of Shcr-e-Bangla Agricultural University, Dhaka during the period from August to November 2006 to study the growth and yield of inbred and hybrid rice with clonal tillers age. The trial was conducted with two levels of treatments viz. A. Variety: BRRI dhan 32 and Sonarbangla I; and B. Clonal tillers age 20, 25, 30, 35 and 40 days. Variety had significant effect on all the parameters like plant height, number of tillers hilY', leaf area index (LAI), total thy weight, total grains panicle', filled grains panicle', unfilled grains panicle -'. 1000-grain weight, grain yield and straw yield except effective tillers hilt', panicle length, rachis panicl&', and harvest index. The highest grain yield (5.58 t lia) was obtained from the hybrid variety and the inbred variety gave the lowest grain yield (3.88 hi'). The hybrid variety had the highest filled grains panicle" (156.84) and 1000 grain weight (27.40 g) as compared to BRR[ dhan 32 but the highest number of total grains flowering duration was found in inbred variety compared to hybrid variety. Clonal tiller age (days) did no significantly influence the growth and yield attributes except panicle length, where yowgcr tillers gave longer panicles. Tillers age ranging from 20 to 30 days showed the best performance than other clonal tillers age. The highest grain yield (5.10 t ha4 ) was obtained from the clonal tiller separation at 25 days and the lowest grain yield (4.31 t hi') was obtained from the clonal tillers of 40 days. Tillers hilt' was not affected by clonal tillers age except 60 DAT, where younger tillers produced higher number of tillers hill 1 as compared to aged tillers. Aged clonal tiller extended the flowering duration. It was concluded that clonal tillers age should be within 20 to 30 days because aged clonal tillers affected the growth and yield of both hybrid and inbred rice
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    EFFECT OF PHOSPHORUS AND SULPHUR ON THE YIELD AND YIELD CONTRIBUTING CHARACTERS OF SAU SARISHA I (Brassica campestris L.)
    (DEPARTMENT OF AGRONOMY, 2007) HOSSAIN, MD. SAROWAR
    An experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University, l)haka. during the period from November 2006 to March 2007 to study the cllect of phosphorus and sulphur singly and also combined on the yield and yield contributing characters of SAL) Sarisha I (Brassia, eainpesnt I..). the experiment included four levels of phosphorous viz.. 0. 30.60 and 90 kg Mi kg haS ' as well as four levels of sulphur vii.. 0, tO, 20 and 30 kg S ha* The experiment was laid out in a Randomized Complete Block l)csign with three replications. Phosphorous showed significant ellect on yield and yield attributes of rapeseed except the number othranches plant'. Application of phosphorus 41 60 kg ha' produced the highest seed yield, plant height. siliqua plant'. siliqua length, seeds siliqua- '. 1000-seed weight. stover yield. biological yield and harvest index. In all the cases lower response was found from the control treatment. Sulphur fertilizer also had significant effect on yield and yield attributes of rapeseed except branches plant' and siliqua length. Application of sulphur 20 kg ha' gave the highest seed yield, plant height, pods plant'. seeds pod'. 1000seed weight. stover yield, biological yield and harvest index. But in all cases the lower response was found from the control treatment. Sulphur (iS 20 kg haS ' was found statistically superior to all other treatments. Phosphorus in combination with sulphur showed significant effect on yield and yield attributes of rapeseed except branches plant". siliqtia length. seeds and 1000-seed weight. Phosphorus @ 60 kg and sulphur &1 20 kg ha" resulted the highest seed yield, plant height, stover yield, biological yield and harvest index. But in all the cases lower response was found from the control treatment.
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    EFFECT OF SOWING DATE AND FERTILIZER ON DRY MATTER, GRAIN NUTRITION LEVEL AND YIELD OF FABA BEAN ( Viciafaba cv. Kalimotor)
    (DEPARTMENT OF AGRONOMY, 2007) MD. ABU KAWOCHAR
    An experiment was conducted at the Agronomy field, Sher-e-Bangla Agricultural University. Dhaka to evaluate the effect of sowing date and fertilizer on the dry matter, grain nutrition level and yields of faha bean (V/cia ft-thu L.) cv. Kalimotor during the period from October 2006 to March 2007. The trial comprised with three sowing dates (20 October, 15 November and 10 December) and thur fertilizer treatments (6 kg N +- 20 kg P205 ~- 20 kg K20 + 15 kg S hi'; 12 kg N + 40kgP205 - 40kgK70+ 30kgSha1 ; 18kgN+60kgP205 +60kgK20+45 kg S hi 1 and 24 kg N + 80 kg P205 + 80 kg K20 + 60 kg S ha 1 ) which were tested in a RCBD design with three replications. Fertilizers were applied during linal land preparation. All data were recorded at harvest. Results showed that the highest values were attained with 15 November. There was a severe reduction in yield due to delay of sowing. The highest value of pods per plant (53.80), filled pods per plant (28.12). 1000-seeds weight (92.1 3g) and grain weight per plant (8.946g) were obtained with 18kg N + 60 kg P205 + 60kg 1(20 + 45 kg S hi'. The interaction effect of date of sowing and fertilizer levels was also significant. Seed yield (1.454 tlha) was the highest in 15 November sowing fertilized with 18 kg N 60 kg P205 + 60 kg 1(20 45 kg S ha* Sowing dates and fertilizers also contributed on grain nutritional level. However, the effects were a hit inconsistent.
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    RESPONSE OF CHICKPEA (Cicer arietinum L.) TO INTEGRATED NITROGEN AND IRRIGATION MANAGEMENT
    (DEPARTMENT OF AGRONOMY, 2007) ISLAM, MD. SHARIFUL
    An experiment was conducted at Shcr-c-Bangla Agricultural University farm. Dhaka to study the response of chickpea (Cicer arietinurn 14 cv. BARI chhola-5 to integrated nitrogen and irrigation management during the period from November 2006 to March 2007. 'l'hc trial comprised often treatments as T1 = no fenilizr and no irrigation (control), 12 = 20 kg N hi' as basal without irrigation. 13 = 20 kg N ha' as basal with one irrigation at flower initiation stage. T4 = 30 kg N hi' as basal without irrigation , T5 = 30 kg N hi' as basal with one irrigation at flower initiation stage. T (, = 40 kg N hi' as basal without irrigation, T 7 = 40 kg N hi' as basal with one irrigation at flower initiation stage, T = 10 kg N hi' as basal and 10 kg N hi' as split with one irrigation at flower initiation stage, 1 9 = 15 kg N hi' as basal and 15 kg N ha1 as split with one irrigation at flower initiation stage and ho = 20 kg N ha 1 as basal and 20 kg N ha 1 as split with one irrigation at flower initiation stage. N fertilization with irrigation management generally increased yield and yield components on chickpea. An application of 20 kg N ha 4 as basal and 20 kg N hi' as split application with one irrigation at flower initiation stage (55 DAS) of chickpea tended to produce better performance and gave higher yield. Plants grown without nitrogen fertilizer and irrigation (control) gave the lowest yield.
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    EFFECT OF NITROGEN DOSE ON SPIKELET STERILITY AND YIELD OF BORO RICE VARIETIES
    (DEPARTMENT OF AGRONOMY, 2007) RASHID, MUHAMMED MAHBUBUR
    A research work was carried out at the Agronomy Farm, Shcr-e-Bangla Agricultural University, Dhaka during the period from November 2006 to June 2007 in order to determine the suitable nitrogen doses to observe the growik performance and to increase the yield by reducing spikelet sterility in boro rice. the experiment comprised four doses of nitrogen no nitrogen, half of the recommended dose of nitrogen, recommended dose olnitrogeit and double of the recommended dose of nitrogen; and four varieties viz, l3ltltl dhan29, BRRI hybrid dhan I, Sonar Bangla- I and I lira-273. The experiment was set up in a split-plot design with three replications. Experimental results indicated that nitrogen doses had significant effect on plant height, tillers hill 4 , dry niatter weight hilF 1 , effective tillers hihI', non- effective tillers bill 1, panicle length, grains panicle", unfilled grains panid&', spikelet sterility, grain yield, straw yield, biological yield and harvest index. Recommended dose of nitrogen showed the highest grain yield (9.2 t ha 4 ) and the lowest spikelet sterility (%) than no nitrogen and other doses of nitrogen treatments. All the studied characters except panicle - length and harvest index varied significantly due to varieties. Among the varieties, llira-273 out yielded BRRI dhan29, BRRI hybrid dhanl and Sonarbangla-1 by US, 0.61 and 0.38 ha4 , respectively which is mainly attributed to the highest number of grains panicle" (1000) and markedly lower level of spikelet sterility (14.34 %). Combination of the recommended dose of nitrogen and Uira-273 showed the best performance in terms of producing the highest grain yield by significant reduction of the spikelet sterility than other interaction treatments
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    INFLUENCE OF INTEGRATED NITROGEN AND IRRIGATION MANAGEMENTS ON THE GROWTH PARAMETERS AND YIELD OF LENTIL
    (DEPARTMENT OF AGRONOMY, 2007) ISLAM, MD. ZAHIDUL
    An experiment was conducted at the Sher-e-Bangla Agricultural University farm. Dhaka to study the influence of integrated nitrogen and irrigation managements on the growth parameters and yield of lentil (Letis culinaris) cv. BAR! mashur-4 during the period from November 2006 to March 2007. The trial comprised of ten treatments as T 1 = no fertilizer and no irrigation (control). Ti = 20 kg N ha S' as basal without irrigation, T3 = 20 kg N ha4 as basal with one irrigation at flower initiation stage, '14 = 30 kg N haS' as basal without irrigation = 30 kg N ha" as basal with one irrigation at flower initiation stage. T 6 = 40 kg N ha4 as basal without irrigation, T7 = 40 kg N ha 4 as basal with one irrigation at flower initiation stage, T= 10kg N hi' as basal and 10 kg N hi' as split with one irrigation at flower initiation stage. T 9 = 15 kg N ha4 as basal and 15 kg N hi' as split with one irrigation at flower initiation stage and T 10 = 20 kg N ha1 as basal and 20 kg N hi' as split with one irrigation at flower initiation stage. Irrespective of treatment differences the lentil plant as a pulse crop showed a lag phase in early growth stage (up to 25 DAS) produced growth parameters like number of leaves, leaf dry weight and stein dry weight per plant. Application of 20 kg N ha" as basal with 20 kg N hi' as split application with one irrigation at flower initiation stage (55 DAS) of lentil improved the growth parameters significantly. Maximum dry matter eventually supported the plant to produce more number of branches and pods per plant, which resulted in maximum seed yield per heetare. A functional positive relationship was observed among number of branches per plant, pods per plant, seeds per pod and seed yield.
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    EFFECT OF NITROGEN ON THE YIELD OF THREE RAPESEED VARIETIES
    (DEPARTMENT OF AGRONOMY, 2007) MAMUN, MUHAMMAD ABDULLAIH-AL-
    An experiment was conducted at the Agronomy held of Sher-e-Bangla Agneultural University, Dhaka-1 207. during the period from November, 2006 to March. 2007 with a view to examining the effect of variety and levels of nitrogen on the growth and yield of rapeseed. There were 4 Nitrogen tërtilizer treatments in the experiment such as = Control, N1 = 60 kg N lii'. N 2 = 120 kg N hi1 and Nl = ISO kg N hz(' and three variety viz. SAU Sharisha-1. BARI Sharisha- II and BARE Sharisha-13 were used in the experiment as the test crop. The experiment was laid out in Randomized Complete Block Design (RCBD) (factorial) with three replications. Variety and nitrogen has significant effect on growth. development, yield and yield aitrihuters of rapeseed. Plant height. dry matter, branches plant* length of main iniloreseenee, number of siliquac in the main inilorescence, siliquae plant". siliqua length, seeds siliqua' weight of 1000 seed, seed yield. stover yield and harvest index were significantly influenced by both variety and nitrogen. The results revealed that nitrogen at the rate of 120 kg ha 4 showed the best result in respect of number of branches plain" number of siliqua plant" and number of seeds siliqua - '. Nitrogen at 120 kg hi' gave the highest seed yield (1974.62 kg ha"). i'hree varieties influenced the growth parameters like plant height, dry matter weight. and the yield components like branches per plant, length of main intlorescence. number of siliquae in the main infloreseenee, siliquae siliqua length, seeds siliqua", 1000 seed weight. seed yield. stover yield and harvest index. Itowever. the seed yield of rapeseed significantly ditlëred among the varieties. BAR! Sarisha-13 produced the highest yield of 1797.25 kg ha" and the lowest seed yield (1603.13 kg ha") was obtained from the variety SAU Sarisha-l. The interaction effect of variety and nitrogen revealed that three varieties in combination with 120 kg N ha 4 showed the best performance in most of the eases.