09/21/2022
ITS CORN!!! š½
We actually started harvesting our corn silage yesterday and I havenāt had time to post but how do we even know when to harvest our corn silage? One way to know is when you see your neighbours start š There is actually some science to itā¦..
If you harvest too early you get...
- decrease in starch
- lower yields
- poor fermentation
- juices can run down your silo and cause damage
- it freezes to the silo easier
If harvested too late you get....
- lower fiber digestibility
- lower starch digestibility
- poor packing in the silo/pile (increase in molds)
A rule of thumb is that the silage is ready when you see the āmilk lineā about half way down the kernel as it makes its way to the cob. However, this isnāt precise because planting date, corn hybrid, weather and field location all play a part. The best thing to do is sample some plants from across the entire field. The plants are chopped up and then tested for moisture. For a tower silo like ours the target moisture is 62-67% moisture. Ours tested on Monday at 63% moisture so itās go time! It dries 0.5% per day normally or up to 1% per day in dry conditions. We add friendly bacteria to our corn to help with fermentation. More on that later.
* As the kernel dries/matures it hardens starting from the outer tip of the kernel. The line separated the hardened part from the still soft part is the milk line.
Fun fact: Corn is a grass!!!! š½