How do I use manure correctly to fertilize garden beds?
I heard that fresh manure harms plants and needs some kind of preparation. Which manure is better to use - cow or horse? And when should you apply it to the soil - in fall or spring?
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Fresh manure really shouldn't be poured straight onto your beds - it burns roots and releases a lot of ammonia. It needs to decompose for at least a couple of months, or better yet six months. Cow manure is denser, breaks down slower, and works well if you're fertilizing from fall through spring. Horse manure is lighter, looser, gets ready faster and heats the soil more - good for cold regions. Both options are fine, the difference isn't critical.
When to apply it depends on what you have available. If the manure's already decomposed and turned into brown crumbly compost, you can use it in spring before planting. If it's fresh or half-rotted - better in fall, so it keeps breaking down over winter and settles. Don't use fresh manure in spring, plants will start growing while the manure's still heating up and consuming nitrogen. You can also throw it in a compost pile with grass, leaves, wood chips - the process goes faster from the heat.
The main thing is don't be greedy with how much you use. A couple buckets per square meter once a year is fine. Overdo it with manure and you'll get tons of weeds and soft tasteless vegetables. You can apply decomposed manure more often, fresh stuff more carefully.
It all depends on what you have on hand and when you're planning to plant 🌱 Horse manure really does work faster - it's hotter and looser, so it breaks down in like 2 to 3 weeks if the weather's warm. Cow manure is denser and breaks down slower, but it's gentler and works even for picky plants. But basically both types need to be prepared before you use them - just different timelines.
Fall or spring depends on how ready it is. If you already have fully decomposed manure - brown, crumbly, no smell - throw it in whenever, even right before planting. But if it's fresh or half-rotted, fall's safer: put it down in September or October, cover the bed, let it turn into fertilizer all winter, and by spring it'll be good to go. In spring you only add fresh manure if you're willing to wait 3 to 4 weeks before planting after that. The universal move is to compost it separately in a pile, mixing it with sawdust or grass, and then spread the finished compost on your beds whenever you want 👍
Wait, the first answer got cut off there, but I got the gist. I'd clarify though: horse manure really is "hotter" and breaks down faster, but that's not always a plus - if you add it before it's fully composted, it can overheat the soil in spots and kill off the beneficial microbes. Cow manure is more gentle that way, even though it takes longer. As for fall or spring - you're better off adding it in the fall anyway, that way it'll settle over the winter and become more uniform, and come spring the soil will be ready to go right away.
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