S. M. A. H. M. KAMAL1*, S. HASAN2, M. O. HOQUE3, M. Z. ISLLAM4 and M. M. HASSAN 5
1Senior Scientific Officer, Agronomy Division, Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Burirhat, Rangpur, 2Senior Scientific Officer, OFRD, RARS, BARI, Rangpur, 3Senior Scientific Officer, RARS, BARI, Burirhat, Rangpur, 4Germplasm Officer, Horticulture Center, Kallyanpur, Chapainawabgonj and 5Upazila Agricultural Officer, Chirir Bander, Dinajpur, Bangladesh. *Corresponding author’s Email: mostafakamal1971@ yahoo.com
ABSTRACT
The study was conducted at Agronomy Division, Bangladesh Agricultural Research Institute, Regional Agricultural Research Station, Burirhat, Rangpur, Bangladesh during 2010-2011 to find out the suitable sowing date and variety for each crop and to assess the agro-economic productivity of the potato base cropping pattern with three varieties and four sowing dates of each crop. The varieties and dates treatments were BARI Alu-7, BARI Alu-8 and BARI Alu-13 of variety and date 28 September, 13 October, 28 October and 13 November of potato crop and BARI Gom-21, BARI Gom-23, BARI Gom-26 of varieties and date 1 December, 15 December, 1 January and 15 January of wheat crop, Mungbean varieties–BARI Mung-3, Mung-5 and Mung-6 and sowing date 5 April, 20 April, 5 May and 20 May of Mungbean, BRRI dhan- 33, BINA dhan-7 and Sharna and 28 January, 5 July, 10 July and 23 July of T. Aman rice sowing dates. All managements were done as per BARC recommendation. The GM and BCR were increased due to shifting of sowing date from 5 October to 13 October and inclusion of variety BARI Alu-13 instead of tested varieties. The best sowing date 13 October and BARI Alu-13 for first potato crop, 15 December and BARI Gom-26, 20 April and BARI Mung-6 of mungbean crop and 10 July and BINAdhan-7 of T. Aman rice crop. The soil fertility status was not deteriorated rather a little bit improved after completion of both the cropping patterns due to use of mungbean.
Keywords: Sowing date, Variety and potato and Wheat base cropping pattern.