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ecology

Bowls Greens don’t have beds!

I often hear the phrase “putting the green to bed” at this time of year.

It is the most frustrating thing to hear because I don’t know of any club that can afford the luxury of stopping work on the green now.

The autumn and winter period is the most important time to get on top of a range of big problems that blight bowling greens.

For example Thatch encourages diseases such as fusarium, insect pests like leatherjackets and chafer grubs and contributes significantly to the onset of Localised Dry Patch the modern scourge of bowling greens throughout the UK. As if that wasn’t enough excessive thatch also saps the speed from your green and causes heavy, unpredictable rinks, contributes to un-even surfaces, causes bumpiness and bad rinks, reduces the efficacy of fertilisers and encourages weed grasses such as annual meadow grass to predominate the sward.

Then there is Compaction which impedes natural drainage, causes shallow rooting of grasses (which leads to skinning on heads), impedes irrigation and rain penetration and causes root break. And that’s before we even consider its expertise at encouraging weed grasses such as annual meadow grass, its ability to severely reduce the efficiency of irrigation, efficacy of fertilisers and its major contributory role in the creation of un-even surfaces and loss of grass cover on edges and heads.

If you only deal with these two issues this winter you will have gone a long way towards creating a performance green; they won’t go away by giving the green “a rest”.

I recently uploaded a new 18 page special report on autumn and Winter Maintenance of the Bowling Green to the Shop which shows you how to deal with thatch and compaction this Autumn and Winter as well as a host of other problems like Insect Pests, Fungal Disease, Localised Dry Patch and Moss.

My Bowls Green is a Disaster what can be done?

Get back to the basics of thatch and compaction control

Here we go with our next web search term that resulted in someone finding this site.

I picked this one today, because it sounds like this search was instigated by someone who really needs help quickly.

This kind of situation calls for a level headed approach. At times like this, when it appears that all is lost and you feel like digging up the green and starting again, it’s easy to Read more

Why do greenkeepers spike a bowls green?

We spike to alleviate compaction and introduce more air into the soil.

Ok, our first web search term question. I’ll try to follow this format for all questions, i.e. the question will be the title of the post, there will be a concise, one sentence answer in block quotes for those in a hurry and then we’ll look a bit more in-depth for those who want more detail.

Comments of course will be welcome as always, so feel free to ask questions, or throw in your contribution.

OK, so the first one is a common one:

First of all let’s explain what the term “spike” means.

Spiking is a generic term used to describe Read more

Circle of Improvement

My post yesterday looked at the huge extent to which the top 100mm (4inches) of our greens have been subjected to sand over the previous 3 or 4 decades.

Today I’d like to elaborate a little on my thinking about taking a green from that state to one of High Performance.

The recovery process is based on encouraging that same top 100mm to return to a state that is akin to a natural, healthy living soil. This of course takes time as we are actually waiting for nature to produce more organic matter to ameliorate the sand to bring the soil back to a state where it can support a large, thriving population of soil microbes.

If you imagine my sketch of the “Circle of Decline” as a water wheel spinning fiercely in a clockwise direction; in other words out of control due to inappropriate maintenance. Each application of sand, pesticide, excessive N fertiliser, etc only serves to set the wheel spinning ever faster in the wrong direction.

The performance greens program is aiming to make the wheel turn in the opposite direction so a lot of the effort at the beginning is simply to slow the wheel down gradually until it is eventually stopped. The program then needs to get the wheel to start turning in the other direction.

Once it starts to turn in the right direction every bit of the correct maintenance program just makes it go faster and faster, so although the recovery process is slow at first, it builds very quickly once things are turned around.

We then start to see the action of what I am going to call the Circle of Improvement due to lack of imagination!

Every ounce of new Read more

Slime on Bowls Green

Another enquiry that suffered from our email address problem on the web form was this one:

What causes small patches of black “slime” on our green and what are the short and long term fixes? The patches are slippery.

Now this is an easier one to fix than the myriad of problems being experienced by the bees!

Slime on the green surface is an indicator of acidic soil conditions. This is likely to be accompanied by dense thatch, compaction and a general lack of health and anaerobic conditions in the green and soil. The soil pH is likely to be very low.

The circle of decline fleshes this out comprehensively.

Tackling the root cause is of course the best way to proceed in the long term and just about anything you read on this site about green maintenance will point you in the right direction, with frequent aeration being the most beneficial practice to concentrate on.

In the short term you can get rid of the slime by adding a teacup full of farmers lime to a bucket of tepid water.  Stir this until it is fully dissolved and then make up to 20 litres with cold water.  Make sure that this is fully mixed before adding to a knapsack sprayer and spot treating the areas of slime.

Use the sprayer as you would for any other application i.e. by walking over the area and spraying as you pass; don’t stand still to spray individual areas as this will result in overdosing and possible damage to the grass.

Walk over the green in two directions, pulling the trigger each time you come to a patch of slime.

Final precautions: Don’t handle the lime without eye and skin protection and make sure that the sprayer is clear of all total weed-killer that it might have been used for previously. Don’t be tempted to use the lime in its powder form on the green.