Effect of irrigation and nitrogen on oil percentage, yield and water use efficiency of winter sunflower (Helianthacs annuus)
Year: 2001
Type: article
Abstract: An experiment was conducted to stud9 the influence of irrigation and nitrogen on oil (%) and seed yield of Arun Hybrid of sunflower (Helianthus annuus L.). Significant increase in yield (1 7.4 and 18.0: qlha) was recorded up to 3 irrigations with IW : CPE ratio of 0.8. Oil yield and net returns were also maximum at this level. The crop showed significant response up fa 40 kg Nlha. The leaf area index and other ancillary characters were also maximum in case of 3 irrigations and 40 kg Nlha. Oil (%) and water use efficiency were higher at 1 irrigation but from the economic point of view, 3 irrigations resulted in more net returns. Soil moisture depletion in 0 60 cm layer was higher than that in 60 90 cm soil layer, but the relative depletion in 60 90 cm layer was more in rainfed due to penetration of roots in search of soil moisture.
Source: Indian Journal of Agronomy
Authors: U.K. PRASAD, V.K. YADVA, T.N. PRASAD, ASHOK KUMAR ArdD S.M. PRASAD
Institution: Dr. Rajendra Prasad Central Agriculture University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W4390290214