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Research Detail

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M. Nurul Islam
Chief Scientific Officer
Agronomy Division, BARI, Joydebpur, Gazipur.

M.S. Alam
Tuber Crops Research Centre, BARI, Joydebpur, Gazipur.

A.T.M. T. Islam
Tuber Crops Research Centre, BARI, Joydebpur, Gazipur.

M.K.R. Bhriyan
Tuber Crops Research Centre, BARI, Joydebpur, Gazipur.

The experiment was conducted with sweet potato at Joydebpur during 2006-2007 to find out suitable plant spacing and fertilizer dose for getting maximum tuber yield of desirable size. Four planting geometry, viz. P1 = 45 cm × 15 cm; P2 = 45 cm × 30 cm; P3 = 60 × 15 cm; P4 = 60 cm × 30 cm (recommended) and four fertilizer doses, viz. F1 = 100-50-125-15-1.5-1; F2 = 75-40-100-11-1-0.5 (recommended); F3 = 50-30-75-7-0.5-0.5; F4 = 25-20-25-3-0.5-0.5 kg/ha NPKS ZnB were tested on sweet potato (BARI SP-6). Tuber weight/plant, single tuber weight increased towards wider spacing but tuber yield decreased. All these parameters decreased towards lower fertilizer level. The results revealed that 45 cm × 15 cm spacing along with 100-50-125-15-1.5-1 kg/ha NPKSZnB are suitable for getting maximum yield of desired sized tubers.

  Planting geometry, Fertilizer, Sweet potato.
  Joydebpur, Gazipur
  00-00-2006
  00-00-2007
  Crop-Soil-Water Management
  Sweet potato

To produce maximum tubers of desirable size without reducing yield per hectare.

The experiment was conducted at Grey Terrace Soils (Albaquept) of BARI farm, Joydebpur, Gazipur during Rabi season of 2006-2007. The soil of the experimental field was silty clay loam in texture with pH 5.8 belonging to Chhiata series under AEZ-28. Four planting geometry, viz. P1 = 45 cm × 15 cm; P2 = 45 cm × 30 cm; P3 = 60 cm × 30 cm (recommended) were accommodated in the main plot and four fertilizer doses, viz, F1 = 100-50-125-15-1.5-1; F2 = 75-40-100-11-0.5 (recommended); F3 = 50-30-75-7-0.5-0.5; F4 = 25-20-50-3-0.5-0.5 kg/ha NPDSZnB in the sub plot.Data on yield components were analyzed statistically and the means were adjudged using LSD. Economic analysis was also done.

  TCRC, Annual Report-2006-07, BARI
  
Funding Source:
1.  Government Budget:  20,000/=
   20,000/=

Tuber weight/plant, single tuber weight increased towards wider spacing but tuber yield decreased. All these parameters decreased towards lower fertilizer level. The results revealed that 45 cm × 15 cm spacing along with 100-50-125-15-1.5-1 kg/ha NPKSZnB are suitable for getting maximum yield of desired sized tubers.

  Report/Proceedings
  

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