Resumen en Inglés:

Various methods for canning sweet corn were compared. Tests made on canned samples kept for three years indicated the following treatments as satisfactory : a) preservation in boiling water followed by sterilization of the canned product under 7 to 14 pounds pressure for one hour ; b) preservation of the sweet corn in 4% sucrose solution, followed by sterilization as in (a) ; c) preservation in a solution made up of 2% sucrose and 2% sodium chloride, followed by sterilization as in (a).

Resumen en Inglés:

Five potatoes fertilizers trials were carried out. in diffeient soil types of the State of São Paulo with the purpose to study the effect of nitrogen, phosphoric acid and potash, on tuber production. It was found that nitrogen increased plant growth, intensified green color of foliage and retarded maturity. Nitrogen also increased susceptibility to fungus diseases. Phosphoric acid increased yield and shortened the vegetative period. Potassium induced a light -green color of the foliage, but otherwise had almost no influence on plant development. Phosphoric acid was the most important factor in increasing tuber production : nitrogen was second and potassium, third. A response to potassium was noticed only when this element was applied together with phosphorus and nitrogen.