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| Articles
by
M.M. Begum |
Total Records (
2 ) for
M.M. Begum |
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M.A. Rahman
,
M.N. Amin
,
M.S. Islam
,
M.M. Begum
and
M.A. Uddin
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Air layering on five different times with the help of indole butyric acid (IBA) at 1000, 1500, 2000, 2500, 3000 and 3500 ppm concentration was evaluated in BARI-1 variety of litchi. Five different dates of layering were 15 May, 01, 16 June, 01 and 16 July. It was observed that the number and average length of primary roots and survival of layers were markedly increased where layers were prepared on 01 and 16 June. Layers prepared with IBA at 2500 ppm produced the maximum number (27.14) and length (6.69 cm) of primary roots and obtained the highest percentage (77.66%) of success in the survivability of litchi layers. The best rooting performance and the final survival of air layers in the nursery after 90 days of severing was recorded to be the highest (90%) where layers were prepared on 16 June with IBA at 2500 ppm. |
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Md. Kalim Uddin
,
K.M. Khalequzzaman
,
M.A. Rahman
,
M.M. Begum
and
M. Zibon Nessa
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Seven different fertilizer combinations on cropping system basis were studied to develop a fertilizer package for mustard-boro rice-transplant aman rice cropping system. Significantly higher grain yield of mustard, boro rice and transplant aman rice were obtained when the recommended rate of fertilizer was applied. When P or K was not applied in boro rice after full NPKS application in the preceding mustard, gave similar yield to when received its recommended dose but when P or K was not applied for two consecutive boro (spring rice) and transplant aman rice (monsoon rice) it significantly reduced the transplant aman rice yield indicating that P or K had residual effect up to one succeeding crop. On the other hand, transplant aman need an extra application of both P and K fertilizer. Sulfur had a residual effect up to two succeeding crops if applied in full dose along with NPK in the preceding mustard. After application of full recommended dose of NPKS in the preceding mustard, a reduced (50%) dose of P + K along with a full N in the succeeding boro and transplant aman rice gave a similar yield to when recommended NPKS or NPK was used. To maintain soil fertility and to sustain crop yield this fertilizer practice may be considered as a good alternative compared to recommended fertilizer dose. |
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