Phosphorus nutrition of sunflower (Hellanthus annuus L.) as affected by Zn. Fe and Caco3

Kaushik, L.S.Kumar, Ramesh2018-10-092018-10-091995http://krishikosh.egranth.ac.in/handle/1/5810077229EnglishPhosphorus nutrition of sunflower (Hellanthus annuus L.) as affected by Zn. Fe and Caco3Thesis