Whats in The Bag, is a color film on how fertilizer is made. It was put out by The National Plant Food Institute which was only called by that name between the years of 1955 and 1969. This movie was probably made in the late 1950’s based on the dress being worn at the end of the film. Director: Malcolm H. McVickar.
Bags on a conveyor belt introduce What’s in the Bag! Followed by credits (0:07-0:47). Farmer on a tractor with a disc working the ground (0:48-0:53). Tractor and combine (0:54-1:00). Cotton Picker (1:00-1:05). Fertilizer spreader (1:06-1:20). Raw materials needed for fertilizer: Nitrogen, N; available Phosphate, P2O5; and potash, K2O; plus other nutrients (1:34-1:59). Percentage of each: Nitrogen 10%, available Phos. Acid 10%, and Potash K2O available 10%, shown on bag (2:00-2:07). Map of where Nitrogen plants are found (2:08-2:20). Nitrogen Plants extract Nitrogen from the air and make it into useable forms for growing crops. Nitrogen is combined with chemicals called carriers. Horton spheres store the Ammonia gas from the process (2:21-3:13). Ammonia is the starting point for fertilizer (3:14-3:25). Illustration of how Ammonium nitrate, Sodium nitrate, Calcium nitrate, Ammonium sulphate, Ammonium Phosphates and Urea are made (3:26-4:12). Coke-oven gas is an ammonia source (4:13-4:19). Air is an ammonia source (4:20-4:37). Cotton seeds may be processed into nitrogen fertilizer (4:46-4:56). Phosphate comes from mines in the form of phosphate rock (4:57-5:27). Map of where phosphate deposits are found (5:28-5:38). Drag lines of the phosphate deposit and water are combined in a phosphate mine to produce slurry and then it is refined (5:39-6:32). Phosphate processing plants converts the phosphate by using acidulation (6:40-8:20). Phosphates created are: super phosphate, concentrated super phosphate, ammonium phosphate, nitra phosphate, and phosphoric acid (8:21-8:38). Potash plant (8:39-8:58) Map of potash deposits (9:00-9:07). Potash rock are mined (9:08-9:25). Potash refineries (9:26-9:54). Muriate of Potash, Sulphate of Potash, and Sulphate of Potash Magnesia all contain Potash (9:55-10:08). What makes a ton of 10-10-10 fertilizer? 804 pounds of nitrogen, 862 pounds of phosphates, 334 pounds of potash. It is mixed and allowed to cure then finely ground (10:38-12:00). Fertilizer can be put into pellet forms by using granulators, dryers, and coolers (12:02-12:20). In 100 pound bag there is 10% Nitrogen, 10% Phosphate, and 10% Potash, what of the other 70 %? They are carriers (12:21-12:53). A. J. Engel, scientist, explains and demonstrates with experiments how these chemicals cannot be used alone without carriers. Without them they are unusable (12:54-15:24). Carriers such as Calcium and Sulfur can be used. A farmer adds fertilizer to his fertilizer spreader (15:25-15:59). Luscious tomatoes in a basket (16:01-16:07). Irrigated field with crops (16:10-16:21). Bell Peppers, lettuce, cucumbers, radishes, and green onions are shown (16:22-16:31). A lady dressed in a late 1950’s dress (16:32-16:39). Cattle grazing in a green field (16:40-16:53).
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