Text Box: Chapter 2

Text Box: Nutrient solutions and Greenhouse management Chapter               Contents 2                         WATER QUALITY AND NUTRIENT 2.1                      Introducton 2.2                      Defining acidity and alkalinity 2.3                      Defining electrical conductivity (EC) 2.4                      Feeding water 2.4.1                   EC of feeding 2.4.2                   Micronutrient concentrations in feeding 2.4.3                   Removal of unwanted ions from feeding 2.4.3.1                 Adjusting pH-determining 2.4.3.2                 Removal of Fe and 2.4.3.3                 Other unwanted ions 2.4.4                   Sterilization of feeding water for open 2.5                      Balance between 2.6                      Nutrient 2.7                      Terminology and definitions 2.8                      Composition of nutrient solutions 2.8.1                   Basic 2.8.1.1                 Sodium 2.8.1.2                 Chloride 2.8.1.3                 Ammonium 2.8.1.4                 Ready-mix 2.8.2                   Predicting the EC of solutions 2.8.3                   Planning a macronutrient solution 2.8.3.1                 Procedure for adding ions 2.8.3.2                 Adjusting the alkalinity of feeding water 2.8.3.3                 Handling salts in feeding water 2.8.3.4                 Using acids or bases as ion sources 2.8.3.5                 Ammonium in Ca-nitrate fertilizers 2.8.4                   Planning a micronutrient solution 2.9                      Solubility of salts 2.9.1                   Precipitation affected by pH 2.9.2                   Precipitation affected by ion combinations 2.9.3                   Mixing macro- and micronutrient solutions 2.9.3.1                 Using a big reservoir at the desired EC 2.9.3.2                 Using two or more stock solution tanks 2.10                    Using nutrient solutions in experiments 2.11                    Recipes for specific crops 2.12                    References

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