A field experiment was conducted at Agricultural Experimental and
Research Station, Faculty of Agriculture, Cairo University, Giza, Egypt
in the two summer successive seasons 2008 and 2009. The present work
aims to study the response of snap bean to different rates of compost
and time of application in comparison with two different sources of
inorganic fertilizers. The experiment included 8 treatments, the
recommended mineral fertilizer (MF) as a control, Natural fertilizer
(NF), i.e. 4, 6 and 8 tons of compost as organic sources were applied
once through soil preparation (O). These treatments were applied at two
equal splits at soil preparation and 30 days after sowing (S). The same
rate of (N: P: K, 50:45:60 kg/ fed) was applied either in MF or NF
treatment. The N source in both treatments was ammonium sulfate, super
phosphate (P) and potassium sulfate (K) in MF treatment and phosphate
rock (P) and natural potassium (K) in NF treatment. Results showed that
MF, NF, 4 tons compost O and S treatments produced significantly taller
plants in combined over seasons.