Central Office of Information; Ministry of Agriculture, Fisheries and Food
Nucleus Films Unit
-
Film shows method of steam sterilising greenhouse soil to prevent diseases. Filmed at Cheshunt Experimental and Research Station. Greenhouse, with two men working to remove tomato vines. Removed and burnt. Disinfected. Greenhouse washed down. Methods of steaming shown: tray method, harrow, grids and Hoddesdeon pipes, used at Cheshunt. Boiler engine shown outside greenhouse. Shows steaming process. Shows that after the process the door must be shut to prevent reinfection, in this case by some ducks. After steaming process shown, flooding, lime and potash. Propagating house shown, planting seeds. Pots shown being sterilised by steaming and formaldehyde bath. Potting on to pots. Diseased plant shown. Planting out into prepared greenhouse, watering and ventilation. Healthy tomato trusses shown. Central Office of Information for Ministry of Agriculture, Fisheries and Food Nucleus Films Unit Technical Advisor W F Bewley Producer J D Chambers Director M D Orron Editor P Spielman Camera J Stewart
