IT is an essential prerequisite of a fungicidal spray that it should not itself cause damage on the plants to which it is applied. This is, unfortunately, not always the case, for lime-sulphur ...

• Unusually large numbers of boll weevil appearing early this season has aroused unusual interest in the method of poisoning the weevil with calcium arsenate. H.M. Cottrell, agriculturist of the ...

Of all the heavy metals appearing as pollutants in agricultural soil, arsenic (As) poses the greatest threat to human health. As is a common pollutant in upland arable soils, which account for nearly ...