. Some effects of a harmful organic soil constituent . Fig. 1.—Showing the Method of Germinating Wheat Seedlings on a PerforatedPlate. The Plate on the Right is Elevated to Show the Corks and Fig. 2.—Showing the Method of Germinating Many Thousand Seedlings on Per-forated Aluminum Plates Floated on the Surface of Water by Means of aSealed Glass-tube Raft in a Porcelain-lined Tank. GENERAL APPEARANCE OF CULTURES. 25 as an added precaution, although it is not definitely kno^m wlietheror not anything is thereby removed from it. The carbon black isthen kept in this moist condition mixed wi
. Some effects of a harmful organic soil constituent . Fig. 1.—Showing the Method of Germinating Wheat Seedlings on a PerforatedPlate. The Plate on the Right is Elevated to Show the Corks and Fig. 2.—Showing the Method of Germinating Many Thousand Seedlings on Per-forated Aluminum Plates Floated on the Surface of Water by Means of aSealed Glass-tube Raft in a Porcelain-lined Tank. GENERAL APPEARANCE OF CULTURES. 25 as an added precaution, although it is not definitely kno^m wlietheror not anything is thereby removed from it. The carbon black isthen kept in this moist condition mixed with water so as to form athin paste. About 10 c. c. of this paste is added to each liter of waterwhich is to be purified and, after shaking, the mixture is allowed tostand for fifteen to thirty minutes and is then filtered through anordinary filter paper into a clean hard-glass receptacle. Water sotreated is very satisfactory for the growth of plants in solutioncultures. GENERAL APPEARANCE OF THE CULTURES IN SOLUTIONS CONTAININGDIFFERENT FERTILIZER RATIOS, WITH AND WITHOUT DIIIYDROXY-STEARIC ACID. The plants in the difterent culture solutions prepared show somemarked difterences almost from
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1910
