1. The Green Revolution, Peace and Humanity CIMMYT Reprints and Translation Series No. 3;Borlaug,1972
2. Stay green: a consequence of the balance between supply and demand for nitrogen during grain filling;Borrell;Annals of Applied Biology,2001
3. Briggs, L.J., Shantz, H.L., 1913. The water requirement of plants. II. A review of the literature. Bureau of Plant Industry Bulletins. no. 285, USDA, Washington, DC.
4. Briggs, L.J., Shantz, H.L., 1917. The water requirement of plants as influenced by environment. In: Proceedings of the Second Pan-American Science Congress, Washington, DC, pp. 95–107.
5. Regulation of the absorption and release of nitrate by plant cells: a review of current ideas and methodology;Clarkson,1986