Hoagland solution DOCX

Title	Hoagland solution
Author	Anand Nandu
Pages	3
File Size	21.1 KB
File Type	DOCX
Total Downloads	115
Total Views	580

Summary

Description

Hoagland solution The Hoagland solution is a hydroponic nutrient solution that was developed by Hoagland and Arnon in 1933 and is one of the most popular solution compositions for growing plants (in the scientific world at least). The Hoagland solution provides every nutrient necessary for plant growth and is appropriate for the growth of a large variety of plant species. The solution described by Hoagland in 1933 has been modified several times (mainly to add iron chelates and the like), but the original concentrations for each element are shown below. N 210 ppm ,K 235 ppm, Ca 200 ppm ,P 31 ppm ,S 64 ppm, Mg 48 ppm, B 0.5 ppm, Fe 1 to 5 ppm, Mn 0.5 ppm, Zn 0.05 ppm, Cu 0.02 ppm, Mo 0.01 ppm The Hoagland solution has a lot of N and K so it is very well suited for the development of large plants like Tomato and Bell Pepper. However, the solution is very good for the growth of plants with lower nutrient demands such as lettuce and aquatic plants with the further dilution of the preparation to 1/4 or 1/5. Hoagland solution must be made from 7stock. 1. Potassium nitrate(KNO3) 2. Magnesium sulphate heptahydrate, MgSO4 7H2O, and potassium dihydrogen phosphate (Potassium phosphate monobasic), KH2PO4 3. Iron EDTA or Iron chelate, Fe-EDTA 4. Boric Acid, H3BO3 5. Copper Sulfate, CuSO4 6. Zinc sulfate heptahydrate, ZnSO4 7H2O 7. Manganese chloride, MnCl2 4H2O 8. Sodium molybdate, Na2MoO4 2H2O, 9. Calcium nitrate, Ca(NO3)2 4H2O. Last solution must be added as final. Component Stock Solution mL Stock Solution/1L Macronutrients 2M KNO3 202 g/L 2.5 1M Ca(NO3)2 4H2O 236 g/0.5L 2.5 Iron (Sprint 138 iron chelate) 15 g/L 1.5 2M MgSO4 7H2O 493 g/L 1 1M NH4NO3 80 g/L 1...