Fertlizing Hippeastrum And Other Amaryllids

Hans-Werner Hammen haweha@hotmail.com
Sat, 11 Jun 2011 02:28:10 PDT
Jim E. Shields wrote:
> Potassium (K) balances nitrogen (N) approximately. Bulbs use large amounts 
> of both nitrogen and potassium. The phosphate (P) is not so important. I 
> recommend an N-P-K ratio of 20-10-20, but 20-5-20 would probably work just 
> as well. Bulbs use much less phosphate.
> Feed with every watering -- continuous liquid feeding is recommended. Use 
> N at about 100 ppm. Don't over-feed. The idea is to supply the nutrients 
> as fast as the plants take them up. Too much salt in the medium is hard on 
> the roots.
> Use a water-soluble inorganic fertilizer. Organic fertilizers, just like 
> ammonia and urea, encourage the growth of potentially pathogenic bacteria 
> and fungi.

Excellent, accurate and correct.
I refer to my own brief research in 
Kind regards to all, and Compliments to Mr. Shields. 		 	   		  

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