On 15/04/2016 16:26, David Hill wrote:
On 15/04/2016 16:20, Chris Hogg wrote:
On Fri, 15 Apr 2016 11:10:54 -0400, S Viemeister
wrote:

On 4/15/2016 10:43 AM, Chris Hogg wrote:
On Fri, 15 Apr 2016 14:45:44 +0100, "Dan S. MacAbre"
wrote:
A level standard teaspoon holds 5ml, which
will be about 5g of ammonium sulphate, so three level teaspoons per
sq.metre will be roughly right.

Are you quite certain on that measurement? 5ml of _water_ weighs 5g -
but I'd be surprised if 5 ml of ammonium sulphate does.

I'm assuming that the ammonium sulphate is loose packed, so would have
a lower density than the pure solid. As a rough check, 5ml of loose
potassium chloride weighs 5.5g. Within the accuracy needed for such
things (it's not analytical chemistry, after all) assuming a
loose-pack density of 1g/ml is probably quite good enough.

I note also that Jeff recommended a similar amount, although he did
say three slightly heaped teaspoons.

I really would weigh it out to start with I have several teaspoons here
all of which are different sizes. So unless you want to use kitchen
spoon measures................


A standard teaspoon (as used to be provided with cough mixtures, et al)
is 5ml, so I always keep one of those handy. However, 5ml of liquid is
necessarily level. Dry teaspoon measures can be either 'level' (level
with the top edge of the spoon), 'rounded' (the dry content should
mirror the bowl of the spoon) or 'heaped' (the dry content should be as
near twice the mirrored bowl of the spoon as is practical.

--
Spider
On high ground in SE London
Gardening on heavy clay