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Strona 22
Plots sprayed with 5 or 15 per cent . sodium chlorate , 4 / 6 / 31 : ( a ) 5 per cent . :
. 24 / 7 / 31 : probably slightly more effective than the earlier application , onions
from bulbs not affected . 27 / 9 / 31 : plot still bare except for onions from bulbs , a
...
Plots sprayed with 5 or 15 per cent . sodium chlorate , 4 / 6 / 31 : ( a ) 5 per cent . :
. 24 / 7 / 31 : probably slightly more effective than the earlier application , onions
from bulbs not affected . 27 / 9 / 31 : plot still bare except for onions from bulbs , a
...
Strona 23
( 8 ) Sodium chlorate : 5 and 10 per cent . solutions at the same time 1 per cent .
as regards soft soap were used . Some of the soap was precipitated ( salted out )
by the chlorate , the case being one similar to the so - called pseudo - hardness
of ...
( 8 ) Sodium chlorate : 5 and 10 per cent . solutions at the same time 1 per cent .
as regards soft soap were used . Some of the soap was precipitated ( salted out )
by the chlorate , the case being one similar to the so - called pseudo - hardness
of ...
Strona 26
Sodium arsenite is an excellent general weed killer at 2 or 5 per cent .
concentrations , with or without a spreader ; thus on six plots the percentage kill is
greater than 90 . It is also excellent against onions from bulbules , and good
against ...
Sodium arsenite is an excellent general weed killer at 2 or 5 per cent .
concentrations , with or without a spreader ; thus on six plots the percentage kill is
greater than 90 . It is also excellent against onions from bulbules , and good
against ...
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