. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. LIMING ONIONS 141 ^ Figure 1. Graphical Representation of the Relation between Soil Acidity and Growth of Onions. Color on Soil-Tex pH Values Onion Growth Deep blue Deep blue to light green Light green to lemon yeUow Orange-yellow. V Neutral ) Slightly acid GOOD 5,5 ) Moderately acid FAIR ) Very acid POOR Forty-one fields, or about 36 per cent, were found in the acid ramge of to In tliis group of less acid fields the yields were gener- ally better, 54 per cent being 250 or more ba
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. LIMING ONIONS 141 ^ Figure 1. Graphical Representation of the Relation between Soil Acidity and Growth of Onions. Color on Soil-Tex pH Values Onion Growth Deep blue Deep blue to light green Light green to lemon yeUow Orange-yellow. V Neutral ) Slightly acid GOOD 5,5 ) Moderately acid FAIR ) Very acid POOR Forty-one fields, or about 36 per cent, were found in the acid ramge of to In tliis group of less acid fields the yields were gener- ally better, 54 per cent being 250 or more bags per acre. But even in this range of soil acidity there were far too many failures. Few fields were found showing the more nearly neutral reaction. There were 15 fields with soils or above in reaction. The yields from 9 of these exceeded 250 bags per acre. It is apparent that most of the poor yields of set onions were from very acid soils, and most of the good yields from soils not so acid; and that lack of lime is responsible for many set onion failures. Otiher con- ditions, such as previous crop effects and poor sets, may be blamed in some Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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