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Articles by M. M. Alam
Total Records ( 4 ) for M. M. Alam
  Md. A. Alim , M. M. Alam , S. Khandker , S. A. Ahmed , Ahsanul Haque and Nargis Akhter
  An investigation was undertaken to evaluate the impact of different crop residues on late jute seed yield and organic matter content of soil. The plant height, number of branch/plant, number of pod/plant, number of seeds/pod and seed yield/plant were significantly increased with different crop residues. The performance in seed yield were dry jute leaves (89.30%) > lentil straw (87.77%) wheat straw (43.28%) > compost (35.35%) > rice straw (32.740%) > saw-dust (16.91%) over the control. The resources increased the soil organic matter content in soil by 24.59, 22.92, 26.22, 19.67, 29.51 and 30.33% respectively over the control indicating the enrichment of soil health. In correlation studies it was observed that the jute seed yield parameters, the seed yield was highly correlated with plant height, number of branches/plant and number of pods/plant.
  Md. A. Alim , M. M. Alam , Ahsanul Haque , Nargis Akter , Zebun Naher and A. S. M. Iqbal Hossain
  An experiment was conducted to investigate the influence of fresh jute leaves as a source of plant nutrients on late jute seed production. Fresh jute leaves were collected just after harvest of jute crop and was incorporated to the soil at the rate of 0, 1, 2, 3, 4, 5 and 10 percent along with a recommended dose of chemical fertilizer (Urea-TSP-MP-Gypsum-Zincsulphate - Borax at the rate of 200-100-40-100-22-10 kg ha‾1 respectively). With the increasing rate of fresh jute leaves pH of the soil successively decreased from 6.47 to 6.31 and organic matter content of the soil increased from 2.45 to 48.36 % and nutrient contents in soil was also increased and of N, P, K and S were increased upto 47.36,53.00, 62.50 and 55.55 percent respectively. A highly significant increase in number of branch, number of pod and seed yield was obtained with 4,5 and 10 percent of fresh jute leaves and a spectacular increase was also found with 1,2 and 3 percent of fresh jute leaves. The seed yield was significantly correlated with number of branches, number of seeds and number of pods per plant.
  M. I. U. Mollah , A. Khatun , M. M. Alam , A. H. Khan and N. E. Elahi
  A field experiment of hedgerow intercropping of pigeonpea with rice and mungbean followed by blackgram and groundnut, respectively, as alley crops was conducted to determine the effect of hedgerow crop on the yield of alley crops, the productivity of hedgerow crop and its contribution to the alley crops. Alley cropping of rice-blackgram and mungbean-groundnut crop sequences with 1.5 and 2.5 m hedgerow distance of pigeonpea along with sole cropping sequences were evaluated. Grain yield of all crops were affected by hedgerow intercropping systems. Significantly highest rice equivalent yields and gross returns were obtained by hedgerow intercropping systems with 2.5 m hedgerow distance for both the crop sequences in both 1995 and 1996. The highest gross margin and the highest benefit-cost ratio (BCR) were resulted from hedgerow intercropping at 2.5 m distance with rice-blackgram crop sequence and the system was found profitable.
  M. Maniruzzaman , M. M. Alam , F. I. M. Golam Wahed Sarker , M. T. Islam and M. N. Islam
  This study was undertaken at two locations in the central part of Bangladesh to assess the performance of PVC and plastic pipe water distribution system for command area development and irrigation time saving by minimizing water losses. In the system, total discharge from deep tubewell (DTW) was diverted to two or three directions by using PVC and plastic pipe of different lengths and diameters. Technical and economic feasibility of the system were also evaluated. The conveyance loss was 2.80 to 9.50% in PVC and plastic pipe whereas in earthen channel it varied from 30 to 33% in silty-clay loam soil, which indicates that on an average 83% water can be saved by improved pipe distribution system. The maximum pressure head in two-way flow condition was 4.25 m. The total head of DTW developed due to the pipe distribution system was 16.52 m at the peak irrigation period, which was below the limit of the total head of the DTW and did not create any problem on pump unit. The motor speed varied from 1490-1500 rpm in two-way or three-way flow conditions, which did not create any back-pressure on pump. By introducing the pipe distribution system about 37 to 41% command area was increased in both locations. The BCR of the pipe irrigation system varied from 2.74 to 1.43 on the basis of 15 to 45% discount rates. The partial pipe distribution system in DTW area was highly economical considering the BCR and IRR analysis.
 
 
 
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