Vol. 5 (3) : May-June 2014 issue
Green Farming Vol. 5 (3) : 368-371 ; May-June, 2014
Effect of spent wash on productivity and oil content of sunflower (Helianthus annuus), soil chemical properties and nutrients balance in dry land areas
H. KAVITHA1*, S. BHASKAR2 and M.Y. KAVITHA3
Agriculture College, GKVK, University of Agricultural Sciences, Bangalore - 560 065 (Karnataka)
Designation : 1Scientist *(kcbabou@gmail.com), 2Professor, 3Res. Fellow
Subject : Agronomy and Crop Production
Paper No. : Combination of P-1262 P-1263
Total Pages : 4
Received : 02 January 2014
Revised accepted : 14 April 2014
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Citation :
H. KAVITHA, S. BHASKAR and M.Y. KAVITHA. 2014. Effect of spent wash on productivity and oil content of sunflower (Helianthus annuus), soil chemical properties and nutrients balance in dry land areas. Green Farming Vol. 5 (3) : 368-371 ; May-June, 2014
ABSTRACT
A field experiment conducted during kharif season of 2008 on sandy clay loam soil at GKVK, Bangalore revealed that application of 1.5 times N through spent wash along with 1.5 times P through SSP significantly increased the grain yield to 1190.5 kg ha-1 in sunflower. Besides, head diameter (16.4 cm), total number of seeds per head (876.5), number of filled seeds/head (679), seed filling percentage (77.5%), head dry weight (53.6) were also superior with this treatment. Maximum uptake of nitrogen (29.4 kg ha-1), phosphorus (14.2 kg ha-1) and potassium (17.6 kg ha-1) was associated with the same treatment. Further, it had higher available N 9294 kg ha-1), P (59.5 kg ha-1) and K (1230 kg ha-1) in soil after harvest. It was interesting to note that application of effluent did not affect the oil content of sunflower but it was found to be on par with the recommended NPK.
Key words :
Nutrient balance, Oil quality, Productivity, Soil chemical properties, Spent wash, Sunflower.
