fert on w crops

jonnyjon

Member
Nitrogen doses - no. It's far too early, cold and there's not enough growth to warrant a tickle.
Phosphate - yes. It won't leach and as long as the run off risk is low, carry on.
Potassium - with higher clay and CEC levels, yes. Hold off if you're on sand.
Magnesium - the sulphur in kieserite is highly leachable. Hold off until there is more rapid growth when the crops can make use of it.
As far as i know, applying p when the crop uptake is low just means the soil will just lock it up
 
Upto around 80kg /ha of K can leach annually from soils. We are now January and there is potential for heavy rainfall and water logging during the rest of the winter. I agree soil type and local conditions need to be taken into account but I can't see why you would risk applying it now when it is the time of highest risk of leaching. Whether that be 5kg/ha or 75kg I personally wouldn't do it..not my money though.

Wouldn't give a stuff. Get on with the job, it's not going anywhere. You will lose nutrients if soil is leaving the field, no disputing that. The time of K application makes no difference.
 

4course

Member
Location
north yorks
Wouldn't give a stuff. Get on with the job, it's not going anywhere. You will lose nutrients if soil is leaving the field, no disputing that. The time of K application makes no difference.
Not so sure ,we have found a positive and cost effective return to K applied as a foliar at around flowering but agree that maintenence levels can more or less be applied any time but personally favour at sowing to help rooting and development
 
Nitrogen doses - no. It's far too early, cold and there's not enough growth to warrant a tickle.
Phosphate - yes. It won't leach and as long as the run off risk is low, carry on.
Potassium - with higher clay and CEC levels, yes. Hold off if you're on sand.
Magnesium - the sulphur in kieserite is highly leachable. Hold off until there is more rapid growth when the crops can make use of it.
Wind and rain has made the decision for me.
 
Not so sure ,we have found a positive and cost effective return to K applied as a foliar at around flowering but agree that maintenence levels can more or less be applied any time but personally favour at sowing to help rooting and development

Foliar K: I agree I see value in that but I was referring to K reserves in the soil, more fertile soils hold crops better over winter and keep them more robust IMO.
 

Luke Cropwalker

Member
Arable Farmer
Your shout really. If you think the K will leach then hold off. However, if the soil has any clay or OM that will hold on the K and want to get a job out of the way then crack on. BTW I favour the 2nd approach if you didn't notice.
 

debe

Member
Location
Wilts
On with polysulphate on everything this last few days. Not leaving a mark on ground that will sink a tractor in a wet year. Fear it will be a different story come mid Feb when I want to get the urea on...
 

David.

Member
Mixed Farmer
Location
J11 M40
If things do not alter substantially, and there is no big rain forecast, I shall be looking to get urea on soon as legal.
There is no ground water here, normally waterlogged land is bone dry, pond water levels which rose before Christmas are falling again. If it stays this dry, we shall be looking at fert granules dry on the surface, and starving crops in April. The leaching of urea is much over rated IMO.
 

SFI - What % were you taking out of production?

  • 0 %

    Votes: 80 42.3%
  • Up to 25%

    Votes: 66 34.9%
  • 25-50%

    Votes: 30 15.9%
  • 50-75%

    Votes: 3 1.6%
  • 75-100%

    Votes: 3 1.6%
  • 100% I’ve had enough of farming!

    Votes: 7 3.7%

Red Tractor drops launch of green farming scheme amid anger from farmers

  • 1,292
  • 1
As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
Top