Show science colors and improves the onion agricultural science now takes another step forward in serving the farmer by painting onions a golden browie brown color and thus says sayes the farmer thousands of dollars a year in this paint job the scientist uses minerals instead of ordinary paints and the onions grow golden brown in color with thick skins instead of a lemon yellow with thin skins the painting Is done with the application of copper sulphate on muck soil in 1929 growers asked why onions grown on certain muck soils had thin skins of pale yellow c olor color instead of thick brownish skins they keep and sell E experiments were started in the greenhouses at the college of agriculture ithaca Ith fica N Y with muck brought in from the deposits where onions grew with poorly colored skins there it was learned that under controlled conditions dit ions lons copper sulphate would produce the kind of onions wanted results were then checked out in the open the scientists recommend pounds of pulverized or snow grude copper sulphate to the acre most growers mix it with their fertilizer spread this mi mixture ure on the muck and harrow barrow it into the surface layer |