OK here are some questions for the chemist. The following is a listing of what is in dairy cow flop in NM. Per NMSU. Parameter Dairy cow pH 8.7 EC (mmhos/cm) 15.9 Total kjeldahl nitrogen (%) 1.74 Nitrate nitrogen (ppm) 87.4 Phosphorous (%) .45 Potassium (%) 1.51 Calcium (%) 1.81 Sodium (%) .24 Magnesium (%) .43 Iron (ppm) 2197 Zinc (ppm) 149 Manganese (ppm) 196 Copper (ppm) 28 Boron (ppm) 28 Aluminum (ppm) 1216 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Question #1 What is kjeldahl Nitrogen ? Question #2 what is EC (mmhos/cm) ? Question #3 At what level does Aluminum and sodium cause problems? Question #4 How does one compare the "Commercial" fertilizers like 5-1-1, 5-10-10 or 15-35-15 to this type of numbering sysytem. Just trying to learn something to new to grow better chiles Byron