It is foolish hauling thousands of gallons of wash about orchards- and it is necessary to purchase sufficient mobile outfits to ensure ... pumped up by a compressor driven by the land wheels or separate engine, a type not to be confused with atomisers. ... The dust is added to the air stream by one of two methods : either by dropping some of the dust into an outflowing air ... Small manual dusters are either of the bellows type in which an interrupted air flow is produced well suited for theanbsp;...
|Title||:||Occasional Publications on Scientific Horticulture|
|Author||:||Horticultural Education Association|