Scaling up of sunflower (Helianthus annuus L.) productivity through improved component technology in Kurnool District of Andhra Pradesh
SCALING UP OF SUNFLOWER PRODUCTIVITY THROUGH IMPROVED COMPONENT TECHNOLOGY
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Authors
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K ASHOK KUMAR
Regional Agricultural Research Station, Nandyal-518502, Andhra Pradesh
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S NEELIMA
Regional Agricultural Research Station, Nandyal-518502, Andhra Pradesh
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P MADHUSUDHAN
Regional Agricultural Research Station, Nandyal-518502, Andhra Pradesh
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K VENKATARAMANAMMA
Regional Agricultural Research Station, Nandyal-518502, Andhra Pradesh
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P MUNIRATHNAM
Regional Agricultural Research Station, Nandyal-518502, Andhra Pradesh
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Y PADMALATHA
Regional Agricultural Research Station, Nandyal-518502, Andhra Pradesh
Keywords:
Boron, Frontline demonstration, NDSH-1, Plant spacing, SunflowerAbstract
Frontline demonstrations (FLDs)were conducted in Kurnool district of Andhra Pradesh to know the yield gaps between improved technology (IT) and farmers practice (FP) in sunflower crop. In the FLDs, the hybrid NDSH1 performed better in terms of seed yield both under rainfed (604 kg/ha) and irrigated conditions (1968 kg/ha) as compared to cultivation of local private hybrids in FP (500 and 1845 kg/ha, respectively). Spraying of Boron (B) at ray floret opening stage also resulted in improved seed yields over its non application across the years of demonstration. In addition, in all the years of study, by adopting proper spacing and thinning practice, marked improvement in seed yield and additional net returns were observed in farmer's fields. The study recommends that as the sunflower yields are less in farmers field in the study area, they can be improved by adopting improved component technologies viz., hybrid (NDSH1), spraying of micro-nutrient Boron at ray floret opening stage and adopting proper spacing and thinning.
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References
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