The same logic says you might as well get out with the T0 fungicides now
Never understood the logic of compromised timelyness just to get a job “out the way”.
Difference between. A good farmer and a bad one ? A week !
Applying MOP now
- Thread starter Ninjago
- Start date
The same logic says you might as well get out with the T0 fungicides now
Never understood the logic of compromised timelyness just to get a job “out the way”.
Difference between. A good farmer and a bad one ? A week !
- Location
- S. Staffs
That spreader is a great buy for someone, nothing complicated and land wheel drive.
@Clive - you ought to look a little deeper into where the K comes from in that product... it's not all animal derived.
MOP is potassium chloride, a salt. It is soluble so will leach. Low cation exchange capacity soils like sand will not retain K and vice versa in high CEC clays.
@Ninjago apply it when logistics say you need to but during active crop growth is best. If you're only doing a maintenance dose the timing is less critical. Peak K demand by the crop is April-July.
MOP is potassium chloride, a salt. It is soluble so will leach. Low cation exchange capacity soils like sand will not retain K and vice versa in high CEC clays.
@Ninjago apply it when logistics say you need to but during active crop growth is best. If you're only doing a maintenance dose the timing is less critical. Peak K demand by the crop is April-July.
Onion grower
New Member
Clive
When do you apply your fibrophos on your w wheat and w rape , do you have wings on your spreader if not how wide do you spread.
When do you apply your fibrophos on your w wheat and w rape , do you have wings on your spreader if not how wide do you spread.
I know this wasn't aimed at me, but mine goes on post harvest, never onto a growing crop unless it is well established. 12m twin disc spreader with wing boards to create a vortex behind so a better spread pattern. Walking floor trucks tip on the field edge.
Bogweevil
Member
Interesting question. Doesn't it depend on the soil - my light sand may well lose much potassium over winter, but land with a reasonable proportion of clay should retain potassium applied in autumn/winter in the top 10 inches or at worst in the lower root zone? But obviously deeply cracked, frozen, saturated or smeared soils might suffer higher losses perhaps through run-off.
Same with kieserite I expect?
Rotationaly ahead of spring cropping, vra applied at 12m
bit off topic but can you buy a N+K+S fertiliser compound for spring?
I blow hot and cold on them to be honest !
We were doing it 20yrs ago as very early adopters on a SOYL grid system and Yara N sensor. The vra base ferts didn’t really even things up as we thought they would and I didn’t see any savings really. N sensor was passive so limited application times a lot so didn’t work for us as workload increased. i always felt at the time that the tech was better than the agronomy !
Had about 5 years when we did nothing, the more I learnt about soil the more confused about the correct approach I became so like a rabbit in headlight I did nothing !
Then came across @Rhiza-UK zone testing and their more joined up detailed soil analysis and soil health testing targeted at no till farms and it looked worth a go. SAR also made vra N look worth another go as a lot better application models and regular “3d” images than just NDVI alone
We did a couple of blocks of land 2 years ago and are impressed so have done a lot more since, we don’t use anything like the qty of p,k and lime we once did but what we do is being very well targeted and we have fixed ph and base nutrient issue in some small areas very quickly and effectively
Jurry is still out but it feels right and like the agronomy has caught up with the tech now
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- Location
- All over the place
Phosphate in the autumn for roots and shoots, potash in the spring as this is the building blocks of the plant. Potassium cholride as correctly quoted is very soluable and will leach when soil moisture is at field capacity.