K ASHOK KUMAR; S NEELIMA; P MUNIRATHNAM; A S R SARMA. Influence of NPK fertilization on growth, yield and economics of sunflower (Helianthus annuus L.) varieties and hybrids: INFLUENCE OF NPK FERTILIZATION ON SUNFLOWER. Journal of Oilseeds Research, India, v. 30, n. 2, 2013. DOI: 10.56739/jor.v30i2.142923. Disponível em: https://epubs.icar.org.in/index.php/JOR/article/view/142923. Acesso em: 21 jun. 2026.