Saturday, August 15, 2015

A Few Good Questions

Dear Reader questions recently include:

How long does Milorganite take to work?  --I've answered this before, but it bears repeating.  It's about three weeks to full effect, assuming decent rainfall and tolerably good soil.  Milorganite does contain some fast nitrogen, so you may certainly notice some impact on your lawn or gardens much faster than that.

However, Milorganite does not generally work quickly, and several applications may be necessary to build the biology and protein levels to a point where sustained, good effects are apparent.

Can you combine Milorganite and blood meal?  --Yes, but be a bit careful.  Milorganite has 40% or so fast nitrogen, which can burn plants when combined with blood meal's very high and very strong levels of fast nitrogen.  I'd probably separate applications of the two, or use the blood meal at very low levels.

What's the comparison of lime vs. Milorganite?  --There's actually no comparison.  Lime is either dolomitic (magnesium plus calcium) or calcitic (calcium only with very little or no magnesium).  Lime raises calcium (and magnesium in the case of dolomite) levels in the soil, usually raising the pH of the soil.

Milorganite is a feeding, although it does contain about 1% calcium as well.  Overall, any pH change of the soil should be minimal to slightly acidic, and it won't appreciably raise calcium levels at normal usage.

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