S. M. A. H. M. KAMAL1*, S. HASAN2, M. O. HOQUE3, M. Z. ISLLAM4 and M. B. SARKER5
1Principal Scientific Officer, Agronomy Division, Breeder Seed Production Center, Bangladesh Agricultural Research Institute (BARI),Debiganj, Pansogar, 2Principal Scientific Officer, Regional Agricultural Research Station (RARS), BARI, Burirhat, Rangpur, 3Principal Scientific Officer, RARS, BARI, Burirhat, Rangpur, 4Germplasm Officer, Horticulture Center, Kallyanpur, Chapainawabgonj, Bangladesh and 5Scientific Officer, RARS, Burirhat, Rangpur, Bangladesh. *Corresponding author’s Email: Mostafakamal1971@ yahoo.com
ABSTRACT
The study was conducted at Agronomy Division, Bangladesh Agricultural Research Institute, Regional Agricultural Research Station (RARS), BARI, 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-26of varieties and date1 December, 15 December, 1 January and 15 January of wheatcrop,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 Junuary, 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. Thebestsowing 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 andWheat base cropping pattern