Abstract
Plants require 17 elements for normal growth and reproduction. The objective of a sound fertilizer management program is to supply these required nutrients in ample, but not excessive amounts for optimum crop production. This chapter will present general information on plant nutrition that will be useful irrespective of the particular cultural system e.g., perlite, rockwool, coconut coir, peatmix, or NFT hydroponics used by a grower. Fertilizer programs will be detailed later in this document. First published Dec.1990.
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