Category Archives: Plowing

Pigweed: don’t let it come up

So is it just a few people’s opinion that plowing works much better than herbicides to control mutant pigweed?

Henry Gantz writes in Don’t Give Pigweed The Light Of Day, If it doesn’t come up, you don’t have to kill it that farmers were depending mostly on Roundup, but that no longer works, due to multiple mutant weeds, including pigweed and marestail. He quotes Dr. Larry Steckle, Extension weed specialist at the University of Tennessee:

Steckle said we’ve now reached the point where we have to begin thinking in terms of controlling “resistant weeds” instead of “resistant marestail” or “resistant Palmer pigweed” because they are both beginning to show up in the same field.

“We have to manage them both,” he said. “There’s a new product from BASF called Sharpen that I’ve been looking at for five years and I’ve been very impressed with the marestail control. I still like dicamba, Roundup and Gramoxone.

“But if you have Palmer pigweed, too, then you’re going to have to overlap with residuals ― Cotoran, Caparol, Prowl ― to have any chance to do a good job of controlling them.”

So, what’s the solution: Continue reading →

Deep-Till: Back to the Future of Plowing

Roy Roberson writes in Farm Press about http://southeastfarmpress.com/cotton/herbicide-resistance-0525/:
Deep tilling of crop land pocked and rutted by heavy equipment used on rain and snow soaked, often frozen farm land may not only clean up the land, but may have a significant positive effect on managing herbicide resistant weeds, especially Palmer pigweed.
Back to the future! “Deep tilling” is the current buzzword for plowing. That’s how my father farmed, with a bottom plow, a subsoiler, a harrow, and a cultivator.

The same article continues to defend no-till:

There is no doubt about the many benefits of minimum or no-till cropping systems. Reduced-tillage saves farmers money in equipment, improves soil quality, improves the environment by making the soil more porous and produces better drainage. The list of benefits goes on and on.
Promotes more erosion, is my observation. And how does no-till save farmers money if they have to pay for increasing amounts of pesticides to try to deal with mutant weeds like pigweed? Continue reading →

Solving the 10,000 Year Old Problem of Agriculture

Richard Harris reports on NPR, 21 Oct 2009, about Prairie Pioneer Seeks To Reinvent The Way We Farm. Wes Jackson wants to solve the 10,000 year old problem of agriculture:
The problem, Jackson explains, is that agriculture in most places is based on practices that use up limited resources. The major grains, like wheat and corn, are planted afresh each year. When the fields are later plowed, they lose soil. The soil that remains in these fields loses nitrogen and carbon.

This worries Jackson because vast quantities of soil are washed out of the fields and down the rivers, and the soil that’s left is gradually losing its nutrients.

Trying to figure out how to solve this problem, Jackson realized the answer was right in front of him. It was the patch of native prairie on his own farm — full of grasses from ankle to shoulder height, peppered with white and purple flowers, and surrounded by shrubs and cottonwood trees.

“Here is a steep, sloping bank with a lot of species diversity, featuring perennials,” Jackson says. “This is what I call nature’s wisdom.”

Perennials are plants that put down strong roots 10 feet or more into the ground and hold the soil in place. Perennials live year-round, unlike annual crops that get planted every year. In Kansas, perennials survive the harsh winters and the blazing hot summers.

The solution will have to be somewhat different for each region, Continue reading →