Feldspar
Member
- Location
- Essex, Cambs and Suffolk
This boron thing is a red herring. It may well have been deficient, but I bet Na, Mg, Zn, Mo, Cu and the rest were also deficient. @Hartwig is correct in that it was the soil structure that had been changed out of all recognition by one application of 4tons/acre of compost and I could still see that line three years later in what ever crop grew there.
In the rape, on the poor side the plants had been drowned out by standing in water all winter. Any normal farmer would have ripped the whole field up in the Spring and planted something else just to tidy it up but with The NTA day approaching, I thought it was too good a demonstration not to show it.
I didn't understand then what was going on, but the only person there who correctly guessed what we now know was the correct answer was @Honest john. He said that the enhanced biology must have changed the soil structure in some way.
I thought you make quite a good TV presenter!