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¶ Figure 1a. Nitrogen Uptake: Irrigated Spring Wheat
¶ Figure 1b. Nitrogen Uptake: Winter Wheat
¶ Figure 2a. Phosphorus Uptake: Irrigated Spring Wheat*
¶ Figure 2b. Phosphorus Uptake: Winter Wheat
¶ Figure 3a. Potassium Uptake: Irrigated Spring Wheat*
¶ Figure 3b. Potassium Uptake: Winter Wheat
¶ References
* For irrigated spring wheat: Jones, Olso-Rutz, & Dinkins. 2011. Nutrient uptake timing by crops to assist with fertilizing decisions. Pub. EB0191. Coop. Ext. Service, Montana State University, Bozeman MT. 8 pg.
** For winter wheat: Waldren & Flowerday. 1979. Growth stages and distribution of dry matter, N, P, and K in winter wheat. Agronomy Journal 71:391-397