FAQ: Organic Fertilizers
Why is raw chicken manure not recommended for trees? We are planting apples and pears in heavy clay soil.
Generally, the concern is that raw chicken manure releases the nutrients it contains very quickly — usually about 90% in the first year. Because of this, there is some danger of burning. This is particularly true with bare root trees. All those tender new roots don't always appreciate the high concentration of nutrients and the associated salts often found in raw manures.
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