Table 2. Sug-estec electrical conductivities (or ppn) in soil slice needed
 to produ maximum strawberry yields through April.



 Suggested optirnura
 soil soluble salts


 Electrical
 Soil sampling d te conductivity PIPE

 November 4 to 5 6500
 January 2 to 3 3500
 February 2 2800
 Hiarch 1.5 to 2 2500
 April 0.75 to 1 1200



ZTese suggested optum levels are valid only for a cultural system which
applies all fertilizr prior to mulching and a saturated paste extract is
used. Also fertiliz nitrogen must be derived one-half each from slow
release nitrogen fe ilizer (sulfur coated urea, IBDU, osmocde, etc) and
one-half soluble nit ogen sources (NHI4NO3, urea, KNO3, (NH4)2804, etc).