Campbell-scientific Sentek TriSCAN® Manual v 1.2a Manual de usuario descargar pdf (Pagina 59)

TriSCAN Manual Version 1.2a

Appendix 6: Relative Effect of Fertilizer Materials on the

Soil Solution

Table 14. Relative Effect of Fertilizer Materials on the Soil Solution (from Ayars and Westcot)

Material Salt Index Partial Salt Index

per Unit of Plant

Nutrient

Anhydrous ammonia 47.1 0.572

Ammonium nitrate 104.7 2.990

Ammonium nitrate-lime 61.1 2.982

Ammonium phosphate (11-48) 26.9 2.442

Ammonium sulphate 69.0 3.253

Calcium carbonate (limestone) 4.7 0.083

Calcium cyanamide 31.0 1.476

Calcium nitrate 52.5 4.409

Calcium sulfate 8.1 0.247

Diammonium phosphate 29.9 1.614

Dolomite (calcium and magnesium carbonates) 0.8 0.042

Kainit, 13.5 % 105.9 8.475

Kainit, 17.5 % 109.4 6.253

Manure salts, 20% 112.7 5.636

Manure salts, 30% 91.9 3.067

Monoammonium phosphate 34.2 2.453

Monocalcium phosphate 15.4 0.274

Nitrate of soda 100.0 6.060

Nitrogen solution, 37% 77.8 2.104

Nitrogen solution, 40% 70.4 1.724

Potassium chloride, 50% 109.4 2.189

Potassium chloride, 60% 116.3 1.936

Potassium chloride, 63% 114.3 1.812

Potassium nitrate 73.6 5.336

Potassium sulphate 46.1 0.853

Sodium chloride 153.8 2.899

Sulphate of potash-magnesia 43.2 1.971

Superphosphate, 16% 7.8 0.487

Superphosphate, 20% 7.8 0.390

Superphosphate, 45% 10.1 0.224

Superphosphate, 48% 10.1 0.210

Urea 75.4 1.618

The salt index is for various fertilizer materials when applied at equal weights. Sodium nitrate, with a salt

index of 100, is used as a base for the index.

1 2 ... 54 55 56 57 58 59 60 61

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Campbell-scientific Sentek TriSCAN® Manual v 1.2a Manual de usuario Pagina 59