The study was conducted to determine the constraints faced by the farmers in commercial cultivation of vegetables and to explore relationship between the selected characteristics of the farmers and constraints faced by them. Data were collected through personal interview from 142 randomly selected respondents out of 1422 vegetable growers of the three villages viz. Panchpara, Bagan and Rampur, under Trishal Upazila of Mymensingh district during January to March 2011. In terms of overall constraints the highest portion (83.30%) of the respondents faced medium constraint. Based on constraint facing index (CEI), low price of vegetables during harvesting ranked first followed by lack of quality seed and high wages of labourer. Among the ten selected characteristics, level of education, family size, farm size, extension media contact, knowledge on vegetable production and cosmopoliteness showed significant negative correlation and family subsistence pressure showed significant positive correlation with farmers' constraints in commercial cultivation of vegetables. Stepwise multiple regressions showed that extension media contact, cosmopoliteness and knowledge on vegetable production had greater influence on farmers' constraints.
The field experiment was conducted during the rabi season of 2005-06 in the farmer's field of Multi-location Testing (MLT) site, Melandah, Jamalpur to evaluate the performance of sweet potato varieties as well as to determine the optimum dose of fertilizer of sweet potato. Two varieties of sweet potato viz., i) BARI Sweet Potato-5 and ii) BARI Sweet Potato-7 and five fertilizer doses viz., i) Estimated fertilizer dose for average yield goal (EDI for average yield goal), ii) Integrated Plant Nutrient System (IPNS) basis fertilizer dose, iii) Fertilizer Recommendation Guide' 97, iv) Farmer's practice, and v) Control. The highest sweet potato yield was obtained from BARI SP-7 with (IPNS) basis fertilizer doses (33.9 t/ha). The lowest sweet potato yield was obtained from BARI SP-7 with control treatment. The highest gross return (112700 Tk./ha) and gross margin (10756 Tk./ha) was recorded from IPNS basis fertilizer treatment. The lowest gross return (40950 Tk./ha) and gross margin (40951) Tk./ha) was recorded from control treatment. But the cost and return analysis showed that the highest benefit cost ratio (24.95) and marginal rate of return (1452) was found from FRG/97 treatment due to lower additional cost.
A field experiment was conducted on Non-Calcareous Dark Grey Floodplain Soil to find out the performance of three mustard varieties viz., i) BARI Sarisha-9, ii) BARI Sarisha-12 and iii) Tori-7 (Local) and three fertilizer doses as : F 1 = 120-34-64-32-1.5 kg/ha NPKSB (HYG), F 2 = 86-26-44-26-1.0 kg/ha NPKSB (MYG) and F 3 = 54-60-15 kg/ha NPK. The variety BARI sarisha-9 produced the highest seed yield (892 kg/ha). The fertilizer level of HYG gave higher seed yield (956 kg/ha). BARI Sharisha-9 gave higher gross return (Tk. 21882/ha) and gross margin (Tk.14936/ha) under HYG fertilizer level but higher BCR (3.54) was recorded under MYG fertilizer level due to less fertilization cost.
The study was conducted to determine the attitude of farmers towards the use of urea super granule (USG) in rice cultivation and explore relationship between the selected characteristics of the farmers. Data were collected through personal interview from 84 randomly selected USG users in rice cultivation of the three villages under Sadar Upazila of Netrakona district during October to December 2008. A five point Likert scale was used to determine the attitude of farmers. The majority (73.81%) of the farmers had moderately favourable, 21.43% slightly favourable and 4.76% highly favourable attitude towards use of USG in rice cultivation. Level of education, farm size, annual income, farming information, agricultural training exposure and rice farming knowledge of the farmers' had significant positive relationship but family subsistence pressure had significant negative relationship with their attitude towards the use of USG.
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