Guideline Index

Appendix D – Nutrient Level Tables

Table D.1 Desirable plant tissue levels in a dairy pasture for adequate production

Nutrient For Plant Growth(White Clover) For Animal Health(Mixed Pasture)
Boron mg/kg 20 – 40 15 – 25
 Calcium %  0.4 – 0.5  0.8 – 1.2
 Chloride %  Up to 2  Up to 2
 Cobalt mg/kg  0.5  0.1 – 0.15
 Copper mg/kg  6 – 12  10 – 12
 Iron mg/kg  50 – 65  100 – 200
 Magnesium %  0.18 – 0.2  0.2 – 0.3
 Manganese mg/kg  24 – 30  40 – 50
 Molybdenum mg/kg  0.15 – 1  1
 Nitrogen %  3.3 – 5.5  4 – 5
 Phosphorus  0.3 – 0.4  0.4 – 0.5
 Potassium  1.9 – 2.4  2.5 – 3
 Sodium %  Up to 0.8  0.2 – 0.3
 Selenium mg/kg  Not Applicable  0.1 – 0.15
 Sulphur %  0.23 – 0.3  0.25 – 0.4
 Zinc mg/kg  15 – 20  40 – 50

 

Table D.2  Seasonal Mineral Levels in Pasture and Dairy Cow Lactational Requirements (per day)

  Plant Level   Cow Req. Plant Level  Cow Req. Plant Level  Cow Req. Plant Level Cow Req.
Minerals Spring  Early Lact.  Summer  Mid Lact.  Autumn  Late Lact.  Winter  Dry Cow
P % DM  0.41 0.48 0.41  0.37 0.40  0.28  0.38  0.19
 K % DM  2.27  1.00  2.73  0.90  2.61  0.90 2.38  0.65
 Ca % DM  0.55  0.77  0.50  0.58  0.43  0.43  0.44  0.30
 Mg % DM  0.32  0.25  0.32  0.20  0.28  0.20  0.30  0.16
 Na % DM  0.47  0.18  0.18  0.18  0.24  0.18  0.34  0.10
 Cl % DM  1.45  0.25  1.33  0.25  1.23  1.33  1.30  0.20
 S % DM  0.24  0.25  0.34  0.20  0.30  0.20  0.26  0.16
 Mn ppm  234  40  250  40  265  40  254  40
 Fe ppm  545  50  339  50  440  50  541  50
 Cu ppm  13  10  20  10  14  10  12  10
 Zn ppm  40  41  40  44  40  39  40
 Se ppm  0.3  0.3  0.3  0.3
 I ppm  0.6  0.6  0.6  0.6
 Co ppm  0.1  0.1  0.1  0.1