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Soil Chemistry. Acidifying the soil or lowering the pH Elemental sulfur (effect is temporary) Ammonium sulfate (effect is temporary) Aluminum sulfate is also used but not recommended as aluminum is a heavy metal!. Soil Chemistry. Basic soils often can cause iron chlorosis in plants - PowerPoint PPT Presentation
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Soil ChemistryAcidifying the soil or lowering the pHElemental sulfur (effect is temporary)
Ammonium sulfate (effect is temporary)Aluminum sulfate is also used but not recommended as aluminum is a heavy metal!
Soil Chemistry Basic soils often can cause iron chlorosis in plants
This can be corrected by acidifying the soil or choosing a plant which is tolerant of alkaline soils!
Intervienal chlorosis: often on acid-loving plants like roses, fruit trees, azaleas and rhododendrons
Soil Fertility16 elements required for plant growth
C HOPKNS CaFe Mg B Mn CuZn Mo Cl
C. Hopkins Caf managed by mine cousins Mo and Cleo
Soil FertilityC, H, O from the atmosphere & water
Macronutrients: N, P, K most often deficient in soils. Also, S, Ca, Mg
Micronutrients: Fe, B, Mn, Cu, Zn, Mo, Cl
Soil Fertility
Soil Fertility
Soil Fertility
Not fertility, excess light!
Soil Fertility
Soil Fertility
Soil FertilityOrganic fertilizers The only choice up until the 1940sManureFishmealSeaweedBloodmealBonemealCottonmealSewage sludgeThese often contain micronutrients