Showing posts with label Crop Rotation. Show all posts
Showing posts with label Crop Rotation. Show all posts

Wednesday, June 18, 2008

Breaking the Conventional Mold in Crop Rotation

One of the many great benefits of being a member of the Practical Farmers of Iowa is that they have their own e-mail List-serv. The e-mail list has hooked me up with potential customers, been a good place to go to when I'm looking for help, and has also been a good source of great research. That was especially true last week when an e-mail came through with a PDF of an article titled, "Benefits and barriers to perennial forage crops in Iowa corn and soybean rotations". I suppose it is more of a research paper than an article, but it was great nonetheless.

I haven't had time to tackle all of it yet, but I will share a couple quotes and thoughts from the introduction:
  • Basically, things changed around WWII (which has been discussed here a lot). Before that most Iowa farms were very diversified in crops and livestock and had multi-crop rotations in place. Those rotations included forages, something not seen these days.
  • Between 1950 and 2004 corn and soybean yields have just about quadrupled. Way to go crop specialists! I assume that means that the amount of money the farmers are making is also increasing...
  • But, that is not the case. First of all the number of Iowa farms during that same time period has dropped by more than 50% and the net income per farm (after inflation adjustment) was actually 9% lower in 2001 than it was in 1960. I'm not sure if that changes with $7.50 corn or not, but I'm guessing it doesn't because all the inputs have also jumped sky high.
It will be interesting to make my way through this paper as they explore the environmental and financial impacts and benefits of switching back to an intensive crop/livestock rotation. They are also going to look at socio-political things that prevent farmers from making the change (I'm really looking forward to that section!).
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