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Fertilization in practise

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Fertilization in practise

• Thomas Pihl

• Course manager

• Furesø GolfClub

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Fertilization in practise

• Inside view, of a greenkeepers thoughts,

on fertilization in practice, who is trying to

maintain the golf course in a sustainable way.

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Fertilization in practise

The overall goal is to keepthe grass alive, stress- and disease free, with a minimum of growth and still deliver at good playingsurface.

Any growth?

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Fertilization in practise

The toolbox• Irrigation

• Fertilization

• Mechanical treatment

• Pesticides

• Biostimulants

• Etc.

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Fertilization in practise

No Pesticides = No safety net = Consequence

• Getting the right balance

• Soil test – Plant tissue test – Greenkeeper experience

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Fertilization in practise

• Relative rates of nutrients in an optimal fertilizer(A)

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Fertilization in practise

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Fertilization in practise

Our choice

• The simple way

• Early application of Lawn sand (N-Fe) (green up/moss)

• Granular NK + Mg + micro-nutrients

• Tank mixing with sulphate fertilizers

• Normal year – ¾ of fertilizer applied before mid-june

• Iron sulphate is used more than recommendations

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Fertilization in practise

• Relative rates of nutrients in an optimal fertilizer(A)

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Fertilization in practise

Furesø Golfklub 2016

N Kg/ha P Kg/ha % K kg/ha %

Driving range 6,45 kg 1,72 kg/ha 0,00 kg. 0,00 kg/ha 0,00 % af N 0,00 kg. 0,00 kg/ha 0,00 % af N

Fairway, sløjfe 1 299,00 kg 68,26 kg/ha 25,56 kg 5,76 kg/ha 8,55 % af N 99,32 kg 22,67 kg/ha 33,22 % af N

Fairway, sløjfe 2 258,05 kg 59,17 kg/ha 25,56 kg 101,84 kg

Fairway, sløjfe 3 264,66 kg 71,56 kg/ha 22,08 kg 106,68 kg

Fairway, sløjfe 4 6,30 kg 7,09 kg/ha 0,00 kg. 0,00 kg.

Forgreens, sløjfe 1 49,38 kg 76,33 kg/ha 3,06 kg 34,82 kg

Forgreens, sløjfe 2 61,34 kg 4,42 kg 39,88 kg

Forgreens, sløjfe 3 118,70 kg 8,90 kg 77,82 kg

Greens, sløjfe 1 50,75 kg 126,12 kg/ha 1,51 kg 41,34 kg

Greens, sløjfe 2 52,78 kg 110,10 kg/ha 1,91 kg 3,98 kg/ha 41,80 kg

Greens, sløjfe 3 32,22 kg 77,55 kg/ha 0,00 kg. 28,15 kg

Greens, sløjfe 4 3,75 kg 39,10 kg/ha 500 g 2,00 kg

Semirough, sløjfe 1 92,75 kg 8,74 kg 37,50 kg

Semirough, sløjfe 2 152,31 kg 21,72 kg 97,37 kg

Semirough, sløjfe 3 212,16 kg 34,86 kg/ha 54,08 kg 135,39 kg

Teesteder, sløjfe 1 40,61 kg 2,09 kg 20,16 kg

Teesteder, sløjfe 2 31,13 kg 1,79 kg 20,27 kg

Teesteder, sløjfe 3 38,57 kg 146,71 kg/ha 1,70 kg 6,47 kg/ha 4,41 % af N 19,95 kg 75,88 kg/ha 51,72 % af N

Total 1,77 T 183,62 kg 904,28 kg

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Fertilization in practise

Choice of fertilizier as a tool for:

• Controling your choice of grass – Poa control

• Disease controle – Acidifying fertilizers

• Weed controle – Acidifying fertilizers and growth

• Playing quality – Stiffness – (colour)

• Wear and stress

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Fertilization in practise

Input of N – on greens

Greens Hestkøbgård Farum Parkvej

2009 79,7 37,8 58,4 N/ha

2010 88,9 68,1 50,8 N/ha

2011 100,6 60,8 31,3 N/ha

2012 100,5 100,5 73,9 N/ha

2013 88,6 78,5 75,9 N/ha

2014 126,1 110,1 77,5 N/ha

Average 97,4 76,0 61,3 N/ha

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Fertilization in practise

Before

• Only granular

• Hardly any applicationon fairways

Now

• Combination of liquidand granular fertilizer

• More to control weedand to build up at small thatch layer

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New products to controldiseases

• A salsmans tricks..

• Or something we can use??

• Our experiences

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Fertilization in practise

Some observations

• Potassium Phoshite• Positive on Poa – Agrostis

• Opposite on Fescue

• Decreasing root´s on Fescue

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Fertilization in practise

Some observations

• Silicium product• Only used this season

• Hardens the plants

• Still dollar spot

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Fertilization in practise

• Thanks

• Look forward to see you all tomorrow