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Articles by N.K. Halder
Total Records ( 3 ) for N.K. Halder
  N.K. Halder , M. A. Hossain , M.A. Siddiky , N. Nasreen and M.H. Ullah
  A field trial was conducted at Calcareous Brown Floodplain Soils of Jessore Regional Agriculture Research Station during the rabi seasons of 2000-2001 and 2001-2002. The objectives were to evaluate the response of wheat varieties to different levels of Boron and to find out the optimum dose of B for maximizing yield of wheat viz protiva, Gourab and Sourav and four levels each of B (0, 1.0, 2.0 and 2.5 kg ha-1) along with a blanket dose of N120P45K80S20Zn2 kg ha-1 and cowdung 5 t ha-1 taken in the study. Results showed that variety protiva along with 2 kg B ha-1 produced significantly highest yield in both the years of study. The said treatment gave the highest mean seed yield (5.3 t ha-1) by 66% increase over the boron control (B0). In case of single effect, all the varieties tested did not contribute significantly to the yield variation. Through the variety protiva was found to be superior as compared to other two varieties. On the other hand, boron either in combination or single greatly contributed to the yield. However, the highest mean yield (4.8 t ha-1) was recorded in 2 kg B ha-1 which was significantly 45% higher over boron control. In regression analysis, a linear but quadratic relationship was also observed between grain yield and level of B. It indicated beyond that dose, the seed yield might be declined with every successive dose of B.
  N.K. Halder , M.A. Hossain , M.A. Siddiky , Md. Rafiuddin and M.H. Ullah
  A field experiment was carried out at Calcareous Brown Floodplain Soil of Regional Agricultural Research Station, Jessore during the two consecutive seasons of 2000-2002. The objectives were to evaluate the effect of boron on the yield of mustard and to screen out the suitable variety (s) tested against different boron levels for maximizing yield of mustard in the study area. Four varieties of mustard viz., BARI Sharisha-6, 7, 8 and 9 and 4 levels each of boron (0, 1.0, 1.5 and 2.0 kg ha-1) along with a blanket dose of N120P35K65S20Zn5 kg ha-1 and cowdung 5 t ha-1 were taken in the study. Results revealed that BARI Sharisha-6 integrated with 1.5 kg B ha-1 was found to be superior to all other treatment combinations. The highest mean seed yield (1.96 t ha-1) was recorded with the said treatment by 25.64% yield increase. Among the 4 tested varieties of mustard, BARI Sharisha-7 showed a good performance and produced the highest mean yield (1.77 t ha-1) as compared to other varieties used. On the other hand, boron at the rate of 1.5 kg ha-1 individually increased the highest seed yield by 58.83%, over boron control (Bo). However, from regression analysis, a positive but quadratic relationship was observed between seed yield and boron levels.
  M.J. Rahaman , M.Shalim Uddin , M.J. Uddin , Shamim Ara Bagum , N.K. Halder and M.F. Hossain
  The present study was carried out to observe the effect of different mulches on the production of potato (Solanum tuberosum). Treatments with mulches-rice straw, water hyacinth and wastage of rice straw significantly increased potato yield over control. Salinity was found to be higher in the treatment without mulch than different mulch materials during the experimental period. From the average of two years results, it was found that highest yield (23.02 ton ha-1) and gross margin (TK69425) obtained by rice straw mulch followed by water hyacinth mulch with yield 22.23 ton ha-1 and gross margin TK 66084. The benefit cost ratio was found to be highest (2.51) in rice straw followed by water hyacinth (2.46), wastage of rice straw (2.08) and no mulch (1.69). The results indicate that potato could be cultivated in saline soil by minimizing salinity with application of mulch.
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