Bulletin, Issue 22H.M. Stationery Office, 1931 - Agriculture |
Contents
GENERAL CONSIDERATIONS | |
Treatment of Sterilized Soil for Propagation | 7 |
INTRODUCTION I | 17 |
Copyright | |
2 other sections not shown
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Common terms and phrases
acre ammonia apparatus applied Baked soil bins boiler boiler output boiler pressure boilerman bottom carbon disulphide chemical sterilizers Cheshunt Chloropicrin clean compost condensation water cost covered cresylic acid crop deep depth diameter diluted distributor draught effective efficient emulsion equipment fertility flues formaldehyde ft long fuel fungi glasshouse grid growers Harrow heavy soils Hoddesdon pipes holes hose increase injection injector John Innes knot eelworm labour lb/hr loam low-pressure manure nurseries organisms pallet truck pests phenolic placed plants plot portable potash potting quantities of soil rate of steam reducing valve root satisfactory side soil steamed SOIL STERILIZATION spacing spiked pipes steam boiler steam main steam pipe steam sterilizing steam supply steam trap steamed soil Sterilisation STERILIZATION BY STEAM sterilized soil Stourbridge sufficient suitable symphylids tarpaulin temperature thermometer tomato trays treated treatment trench tubes unsterilized usually wireworms