1. Aguilar M, Grau D (1995) The effect of nitrogen fertilizers on foliar nitrogen content in rice. Investig Agrar Prod Prot Veg 10(3):463–472
2. Ahmed R, Jabeen R (2005) Foliar spray of mineral elements antagonistic to sodium – A technique to induce salt tolerance in plants growing under saline condition. Pak J Bot 37(4):913–920
3. Andreevska D, Spasenoski M, Trpeski V (2001) Dry matter yield and nitrogen distribution in organs of three rice varieties (Oryza sativa L.) depending on nitrogen fertilization. Godisen Zabornik na Zemjodelskiot Fakultet Universitet Sv Kiril i Metodij Skopje 46:51–64
4. Asenjo MC, Gonzalez JL, Maldonado JM (2000) Influence of humic extracts on germination and growth of ryegrass. Commun Soil Sci Plant Anal 31:101–114
5. Badole WP, Narkhede AH (1999) Effect of concentration and time of foliar spray of urea on growth and economic yield of rice (Oryza sativa). Indian J Agron 44(4):705–709