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North Scotland NVZ tillage ground 1st sept-20th Feb. All other NVZ ground in Scotland 1st Sept-15th Feb
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North Scotland NVZ tillage ground 1st sept-20th Feb. All other NVZ ground in Scotland 1st Sept-15th Feb
MOP is highly leachable and K is not needed in winter cereals in any significant amounts for a long time yet. I would keep it in the shed A least you know it's not disappearing out your field drains in February.Winter crops got FYM or Hen Litter at sowing, The rest got 0.20.30. I still have V.Rate MOP to do. Thinking about going now instead of the usual Feb/March application
Decisions Decisions! Do I agree with you or Ollie?MOP is highly leachable and K is not needed in winter cereals in any significant amounts for a long time yet. I would keep it in the shed A least you know it's not disappearing out your field drains in February.
I usually put 125kg/ha of 0.20.30 on at sowing winter cereals,then V.Rate p&k in the spring,usually march/april or late Feb if ground will travel.Ground is dry at moment so I was thinking of doing it now to reduce workload in March/April.Whats the difference between putting MOP on in the autumn and putting it on now? Try putting some on now and the rest in spring and tell us which did the best.
I am not looking for tractor fix.Read what I said. All I am trying to do is plan spring work. In the past in a late spring I have not got MOP applied till late April because N application,lambing,calving ect took priority .What amazes me is that some farms must be so depleted of reserves that they would need any fertiliser now. Use of manures and rotation should mean a well established crop won’t go hungry in January , and it’ll be dormant anyway . I guess people are bored and looking for a tractor fix
How long would it take to get it on in an average season?I am not looking for tractor fix.Read what I said. All I am trying to do is plan spring work. In the past in a late spring I have not got MOP applied till late April because N application,lambing,calving ect took priority .
What amazes me is that some farms must be so depleted of reserves that they would need any fertiliser now. Use of manures and rotation should mean a well established crop won’t go hungry in January , and it’ll be dormant anyway . I guess people are bored and looking for a tractor fix
For me TSP yes. MOP no but just my opinion.So, 30t each of tsp and mop on OSR and WW1, spread this week or not?
So, 30t each of tsp and mop on OSR and WW1, spread this week or not?
I thought someone mentioned applying N, which I was referring to.I am not looking for tractor fix.Read what I said. All I am trying to do is plan spring work. In the past in a late spring I have not got MOP applied till late April because N application,lambing,calving ect took priority .
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.You can apply P and K fairly freely unless you are on sandy or very thin soils or doing something daft when it is water logged or flooded. P and K (and a lot of other elements) are bound very strongly to the soil colloids, they will not re-enter solution freely, but you can lose them if those soil particles are in fact leaving the field via water running over the surface and carrying them away. If that were the case you would not probably be attempting to travel on the land. You must also be very careful on highly acidic soils where a lot of elements behave very differently.
I used to regularly get customers to apply P or K to land destined for winter cereals in the autumn, either in the form of organic manures, slurries or as TSP/MOP or 0.24.24. DAP also has a place, too but obviously it contains nitrogen which is a different beast.
It should be said of course that none of the above should be applied unless prior knowledge of the land indicates the need for these nutrients or you have a recent soil test as you could waste a lot of money very quickly for no appreciable improvement in crop yields.
I am convinced P and K levels were key to overwinter survival of many crops, particularly legumes and grasses.