Experiments in the Use of Old Soil in Growing Carnations And Roses
Experiments in the Use of Old Soil in Growing Carnations And Roses
F F Frederick Francis Weinard
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Distinct increases were obtained in this season with Early Rose and Spectrum from steaming both old and new soils. The increases with new steamed soil were 2. 35 and 1. 15 flowers a plant (10. 9 and 5. 8 percent) respectively. The corresponding increases with 2-year steamed soil were 4. 87 and 1. 79 flowers a plant (25. 8 and 9. 4 percent). Also, 2. 19 more flowers per plant (10. 2 per- cent) were cut from Early Rose on 2-year steamed soil than from new unsteamed soil, and there was a similar b...ut smaller difference with Spectrum. Steaming seemed to increase the length of stems on 2-year soil. (Table 9. ) 16 BULLETIN No. 400 [March, TABLE 9. CARNATION YIELDS ON STEAMED AND UNSTEAMED SOILS, 1929-1933 Variety and year Soil Plots Number of plants Average number flowers a plant Average stem length Average flower diameter 1929-30 Early Rose New 5, 6, 11, 12 189 18. 67 . 26 inches 14. 2 inches 2 6 Harvester New, steam 2-yr. 2-yr. , steam New 9, 10 16 13, 14, 15 5, 6, 11, 12 91 47 144 98 20. 85 .
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