. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). on Water-Soluble Matter in Soils. 263 Effect of an infusion of unsteamed soil on a steamed soil As the process of steaming, as performed in these experiments, com- pletely sterilized the soil, it was concluded to try the effect of reinocu- lating the soil so treated with some of the unsteamed soil to see whether the organisms t
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). on Water-Soluble Matter in Soils. 263 Effect of an infusion of unsteamed soil on a steamed soil As the process of steaming, as performed in these experiments, com- pletely sterilized the soil, it was concluded to try the effect of reinocu- lating the soil so treated with some of the unsteamed soil to see whether the organisms thus introduced would cause a more rapid recovery from the effects of steaming than otherwise took place. One hundred grams of unsteamed soil were shaken up with 250 of sterile water, allowed to stand 20 minutes, and the supernatant infusion (about 200 ) containing some soil in suspension was added to the steamed Fig. 72—Effect oj adding an infusion of unsterilised sod to a sterilized soil as indi- cated by a crop of wheat 44 days after planting Pot 32—Soil No. 5 untreated Pot j6—Soil No. 5 sterilized Pot 54—Soil No. 5 sterilized and treated with an infusion of the same soil not sterilized Soil No. 7 was placed in pots, four of which were steamed and two not steamed. Two of the steamed pots were treated with the infusion and two were not. One of each of the two pots receiving the same treatment was planted with wheat. The following are the pot numbers and treatments: Pot 63 steamed, not planted. Pot 64 steamed and planted. Pot 65 steamed + infusion of unsteamed soil, not planted. Pot 66 steamed + infusion of unsteamed soil and planted. Pot 67 unsteamed, not planted. Pot 68 unsteamed and planted. Fifty seeds were planted on March 22 in each of the planted pots. Following are the records of germination:. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
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