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Articles by U.K. Majumder
Total Records ( 5 ) for U.K. Majumder
  F. Hossain , M.S. Bari , U.K. Majumder , M.M. Bahadur and M.J. Islam
  The experiment was conducted to evaluate the performance of Aus rice (CV. BR 20) under variable management. The treatments consisted of three tillage (Viz. 1 tillage, 2 tillage and 4 tillage) and three cultural practices (Viz. 2 raking, 2 weeding and 2 raking + 2 weeding). The Aus rice increased yield both for more tillage and cultural practices. Significantly, the highest grain yield (2.92 t ha-1) was obtained from 4 tillage with 2 raking and 2 weeding at 15 and 30 days after sowing (DAS). Though the treatment, 4 tillage with 2 raking and 2 weeding gave the highest yield but the benefit cost ratio (BCR) was found to be low (1.08) in this treatment. One tillage and two raking (15 and 30 DAS) was economically profitable practice with grain yield of 2.51 t ha-1 which also gave gross return of TK. 21520 ha-1, net return TK. 8731 ha-1+ and BCR 1.68.
  M.S. Akter , M.A. Matin , M.F. Hossain , U.K. Majumder and S.C. Halder
  An experiment was conducted to evaluate the effect of tillage practices and nitrogen rates on the %N content in grain, straw and N uptake by grain, straw, plants in rice var. Binasail. The %N content in grain, N uptake by grain and total N uptake by plant were significantly influenced by different tillage practices. Maximum N content in grain (1.12%), N uptake by grain (34.54 kg ha-1) and total N uptake by plant (43.23 kg ha-1) were observed in 20 cm deep tillage treatment (T2). Minimum N content in grain (1.09%), N uptake by grain (26.87 kg ha-1) and total N uptake by plant (35.41 kg ha-1) were found in no tillage treatment (T0). The nitrogen content (%) in grain and straw, N uptake by grain and straw and total N uptake by plant were also significantly influenced by different rates of nitrogen application. The maximum N content in grain (1.17%) was recorded in no nitrogen (N0) and the minimum (1.04%) with the application of 105 kg N ha-1 (N3). The interaction effect of tillage operations and nitrogen application on %N content in grain, straw and total N uptake (kg ha-1) by plant found to be significant.
  M.F. Hossain , M.S. Akter , U.K. Majumder , M.S.I. Sikder and M.M.A.A. Chowdhury
  The experiment was conducted to evaluate the impact of tillage and nitrogen on soil physical properties such as bulk density, particle density, soil moisture, porosity, air filled porosity. Soil physical properties were significantly influenced by different tillage practices but in case of nitrogen treatments there were no significant variation. Bulk density was significantly increased with soil depth. The highest bulk density of 1.46 cm-3 was recorded under no tillage at 20-30 cm soil depth. Maximum particle density (2.53 g cm-3) was measured by 10 cm deep tillage (T1) at 10-20 cm soil depth. Soil porosity was statistically influenced by different tillage operations. The maximum soil porosity of 64.68% was observed by 20 cm deep tillage (T2) at 0-10 cm soil depth. The soil moisture significantly decreased with soil depth. The highest moisture content of 44.43% was recorded under deep tillage (T2) at 0-10 cm soil depth and lowest 23.53% was found by control (T0) at 20-30 cm depth. Maximum air filled porosity (15.66%) was recorded in deep tillage (T2) at 20-30 cm soil depth. High air filled porosity indicated low moisture content in soil.
  M.F. Hossain , M.A. Kabir , U.K. Majumder , M.S.I. Sikder and M.M.A.A. Chowdhury
  An experiment was conducted during the period from November 2001 to April 2002 to determine the optimum irrigation time and nitrogen level of wheat. Highest grain yield (3.71 t ha-1) was obtained with three irrigations at crown-root initiations (CRI)+maximum tillering (MT)+grain filling (GF) stages which was identical with two irrigations at crown-root initiations (CRI)+maximum tillering (MT) stages and at crown-root initiations (CRI)+grain filling stages. The highest grain yield (3.61 t ha-1) was obtained from 120 kg N ha-1 which was followed by 100 kg N ha-1 treatment and the lowest grain yield (2.81 t ha-1) was recorded under 40 kg N ha-1 treatment. No significant effect was observed on yield due to interaction of irrigation and nitrogen level. The highest grain yield (4.33 t ha-1) was found by three irrigation at crown-root initiations (CRI)+maximum tillering (MT)+grain filling (GF) with 120 kg N ha-1. However, grain yield of wheat was significantly influenced by irrigation and nitrogen level but not due to interaction of irrigation and nitrogen level.
  M.F. Hossain , U.K. Majumder , M.A.S. Mondol , M.Z. Haque and M.M. Haque
  A pot experiment was conducted during November 2000 to March 2001 to find out the optimum fertilizer requirement of grafted tomato. Four levels of N, 4 levels of P, 4 levels of K, 2 levels of S and 1 kg sodium molybdate and 10 t ha–1 organic manure were applied in equal distribution to all these by using a selected set of 12 treatments. The highest tomato yield of 1459 g plant–1 was obtained with the application of 200 kg N, 120 kg P2O5, 80 kg K2O, 20 kg S ha–1, which was statistically similar with N150P120K80S20, N150P40K80S20, N100P120K80S10, N150P120K0S20, N150P80K80S20 and N150P120K120S20 treatments. Yield increased 694% over control. On economic point of view N150P40K80S20 treatment was the most suitable fertilizer dose for grafted tomato because it gave 605% higher yield over control.
 
 
 
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