• Gypsum is variable in its effects on mature trees; • Gypsum will not improve fertility of acid or sandy soils; • Gypsum will not improve water holding capacity of sandy soils; and • Gypsum’s effects are short-lived (often a matter of months)
• Gypsum can increase leaching of iron and manganese, leading to deficiencies of these nutrients; • Gypsum applied to acid soils can induce magnesium deficiency in plants on site; • Gypsum applied to sandy soils can depress phosphorus, copper and zinc transport; • Gypsum can have negative effects on mycorrhizal inoculation of roots, which may account for
several reports of negative effects of gypsum on tree seedling establishment and survival;
Google Linda Chalker-Scott, Washington State University, Horticultural Myths, then scroll down the page to "soil amendments" and see "gypsum." For some reason when I try to sen the link I get the error message.
• Gypsum is variable in its effects on mature trees; • Gypsum will not improve fertility of acid or sandy soils; • Gypsum will not improve water holding capacity of sandy soils; and • Gypsum’s effects are short-lived (often a matter of months)
piehole19 1 month ago
• Gypsum can increase leaching of iron and manganese, leading to deficiencies of these nutrients; • Gypsum applied to acid soils can induce magnesium deficiency in plants on site; • Gypsum applied to sandy soils can depress phosphorus, copper and zinc transport; • Gypsum can have negative effects on mycorrhizal inoculation of roots, which may account for
several reports of negative effects of gypsum on tree seedling establishment and survival;
piehole19 1 month ago
• Gypsum does not usually change soil acidity, though occasional reports of both increasing and decreasing pH exist;
• Gypsum can increase leaching of aluminum, which can detoxify soils but also contaminates nearby watersheds;
piehole19 1 month ago
Google Linda Chalker-Scott, Washington State University, Horticultural Myths, then scroll down the page to "soil amendments" and see "gypsum." For some reason when I try to sen the link I get the error message.
piehole19 1 month ago
Trying to send link, keep getting error, try again. ?
piehole19 1 month ago
The scientific fact is, gypsum does not "improve" clay soil. It's a product for lawn companies to make money on and that's about it.
piehole19 3 months ago
@piehole19 can you link us to this scientific fact? site this fact for us please.
emigrantgap 1 month ago