(Note: I’ll be doing another blog posting later today. Just want to be sure I get this out.)
I’m writing a new book on plant physiology for gardeners – a book that explains how plants work and why they sometimes do weird and unexpected things. I’d like to hear what kind of “how” or “why” questions you’d like to see answered in this type of book. Please add your comments to this post, or send them to me directly.… Continue reading this article “Reader input wanted for new book”
(As an aside, I wrote this before I read Jeff’s Oct. 13 post so don’t read this as a rebuttal!)
One of the hallmarks of science is that it pays to keep an open mind. We all tend to have biases so it’s good to get a reminder once in a while that some things that seem ‘out there’ can actually work and provide some useful information.
A case in point. At the American Society for Horticultural Sciences annual meetings I make a point to wonder through and browse all of the poster presentations – even those that appear to have little relevance to issues I typically deal with. … Continue reading this article “Smoke ‘em if you’ve got ‘em…”
In my last post I announced that we would be conducting the first landscape transplant experiment designed by social media. We have about 100 ‘Bloodgood’ plane trees in 25 gallon containers that are leftover from a recent nursery trial. The trees will be planted at our Hort station and receive minimal care after planting beyond an initial watering and a kiss for luck. I asked for some suggestions for potential treatments and got some good suggestions. … Continue reading this article “Vote early and often!”
As I was looking over the label on a bag of fertilizer this morning I was reminded of the time, a few years ago, when a friend of mine and I went to a local K-mart and decided to see what the people in the gardening section knew. We started small—we went over to a bag of fertilizer and my friend asked what the three numbers on the bag meant. Now, as most gardeners know, those numbers indicate the amount of nitrogen, phosphorus and potassium in the fertilizer. … Continue reading this article “A Challenge”
Here at the Garden Professors we pride ourselves on being on the cutting edge of technology. In fact, we’re so tech savvy we didn’t even whine when FaceBook foisted a new homepage format on us for no apparent reason. So it’s only fitting that we offer you, Mr. and Ms. Garden Professor Blog reader, an opportunity to participate in the first ever landscape horticulture research project designed by social media.
Here’s the deal. My current research project on water and nutrient management of trees in container production has left us with over 100 ‘Bloodgood’ London planetrees in 25 gallon containers. … Continue reading this article “Be a Part of History!”
1984. That’s the year that the last professor here at the University of Minnesota published a paper about peanuts. He had tested a number of different varieties, some of which we’re testing now, and found that they do quite well in Minnesota. Then for the next 26 years there was a lull. And now? We have peanuts! Boiled peanuts and man are they good. But…will we end up in 1984 again? How do we make sure that our peanuts don’t disappear into academic oblivion? … Continue reading this article “Beer and 1984”
Did you ever know one of those annoying people who always talks about how great everything is back wherever they were from; the kind of folks that make you want to say, “If things were so much better there, why are you here?” I have to confess I’m one of those people. No one’s ever actually given me the “If things were so much better there” line, but I’m sure my Michigan friends have been tempted. … Continue reading this article “Fall color time…”
My sister, who lives in the Pittsburgh area, just gave me a call. She and her husband have two kids and a lawn and she wanted to know my feelings about using herbicides to keep the grass free of weeds. When we were growing up our parents had a large lawn (and lots of fruit trees) and it took two of us two hours to mow the whole thing. It kind of turned her off to grass. … Continue reading this article “My Thoughts on 2,4 D”
Today’s post is a follow-up to yesterday’s quiz on foliar fertilization. I asked our blog readers to match the needle nitrogen content of Nordmann fir trees with the fertilizer treatments they had received.
Nutrient deficient Nordmann fir
The correct order is:
1) control: no fertilizer 0.98%
2) soil applied controlled release fertilizer 1.70%
3) foliar nitrogen fertilizer 1.14%
4) soil applied fertilizer + foliar feed 1.91%
While the foliar fert had a small effect, it’s important to note that, from a statistical standpoint, foliar fertilization did not significantly increase needle nitrogen concentration. … Continue reading this article “Pop quiz answer”
It’s the start of new semester. Best way to get student’s attention is with a pop quiz right off the bat! So in that vein, we’ll cross things up and give a quiz on Monday instead Friday. Relax; to make things a little easier we’ll make this one a matching exercise.
Here goes. At our recent Christmas tree conference in Austria, a colleague of mine at Oregon State University, Chal Landgren, presented the results of a study to look at the effectiveness of foliar fertilization on Nordmann fir. … Continue reading this article “Pop quiz time!”