. Dreer's Vegetables under glass . MUSHROOMS. Mushroom culture can be treated but briefly in the limited space afforded by a single chapter. But the mush- room is a winter crop of so much im- portance that it cannot be altogether omitted from this book. And yet it is not, properly speak- ing, an under-glass crop, because the greenhouse is not the best place in which to grow it; though it is grown to some extent under greenhouse benches. The changes of temperature of the greenhouse are hostile to success with mushrooms. Wherever there is light there is heat, and wherever the light penetrates th
. Dreer's Vegetables under glass . MUSHROOMS. Mushroom culture can be treated but briefly in the limited space afforded by a single chapter. But the mush- room is a winter crop of so much im- portance that it cannot be altogether omitted from this book. And yet it is not, properly speak- ing, an under-glass crop, because the greenhouse is not the best place in which to grow it; though it is grown to some extent under greenhouse benches. The changes of temperature of the greenhouse are hostile to success with mushrooms. Wherever there is light there is heat, and wherever the light penetrates there are contrasts between day and night temperatures. This is the only reason that "dark places " are better for mushrooms. The mushroom in nature grows in the open field, in full daylight; but it grows best at a season of the year when the day temperature is on the decrease and the soil tempera- ture makes the night comparatively warm. The ideal temperature for mushrooms is 57 degrees. Many experimenters have ceased to grow mushrooms on account of the uncertainty of the crop, but this is in reality an argument in its favor, since it tends to insure a good market and good prices for those growers who push on to success. The price for the past ten years, taking an average, has not been below fifty cents a pound ; and there is a fair margin of profit to the grower at this figure. Some expert growers have secured an average price of sixty cents, 81
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectvegetab, bookyear1896
