. Florists' review [microform]. Floriculture. 62 The Florists' Review July 28, 1014. have a smaller root system than Killar- ney grafted, and probably this is the reason they produce more flowers with heavy applications of dried blood in contrast to the grafted stock. Oood Bestdts from Acid Phosphate. On the whole, it is inadvisable to apply more than eight pounds of dried blood per hundred square feet. On the other hand, applications of acid phosphate up to eight pounds per hundre(f square feet, the largest amount used in the ex- periment, gave increasingly large num- bers of flowers as the a
. Florists' review [microform]. Floriculture. 62 The Florists' Review July 28, 1014. have a smaller root system than Killar- ney grafted, and probably this is the reason they produce more flowers with heavy applications of dried blood in contrast to the grafted stock. Oood Bestdts from Acid Phosphate. On the whole, it is inadvisable to apply more than eight pounds of dried blood per hundred square feet. On the other hand, applications of acid phosphate up to eight pounds per hundre(f square feet, the largest amount used in the ex- periment, gave increasingly large num- bers of flowers as the application was increased, showing that the roses re- sponded to applications of this fer- tilizer. No benefit was observed from applications of potassium sulphate, as was the case with carnations also. These results lead to the recommenda- tion of commercial fertilizers in the following amounts per hundred square feet, for first-year roses: Dried blood, eight pounds; acid phosphate, eight pounds. Experiments are being carried on with still heavier applications of acid phosphate; when they are com- pleted, the advisability of heavy ap- plications of this fertilizer will be de- termined. Experiments have been made during the year 1913-14 in regard to the use of sulphate of ammonia in place of dried blood on roses. It is found to be a satisfactory source of plant food, but much more difficult to use successfully, since roses are particularly susceptible to overfeeding with it. No experiments have yet been made with nitrate of soda. Acid phosphate was used during the experiment as a source of phos- phorus. It is quite probable that finely ground, steamed bone meal could have been used in equal amounts with as good results, although its value was not tested. When to Apply Dried Blood. The dried blood should not be ap- plied in full amount at the time of preparation of the soil, but one-fourth should be mixed with the soil and ma- nure at this time, followed by three further applicat
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
