Canola Watch quiz – Fertilizer Jay Whetter May 9, 2018 Leave a Comment Three questions on crop nutrition and fertilizer to test your knowledge. 1. Of the major macronutrients nitrogen (N), phosphorus (P), potassium (K) and sulphur (S), two of them do not move very far in the soil. Once applied, they disperse only very short distances. Which are they? N and PP and KP and SN and S 2. Canola often goes into wheat stubble. Average spring wheat yield on the Prairies in 2017 was 52.1 bu./ac. Roughly how much phosphate (in lb./ac.) would an average wheat crop remove from the soil? 10203040 3. Why is it important to place anhydrous ammonia fertilizer (NH3) into moisture? (Choose the most important reason.) In dry soil, NH3 stays in gas form and can escape.Moist soils are better for the firm packing required for NH3.Moisture means yield, which improves the economics of any fertilizer.Moisture reduces seed damage from NH3. Loading...
