. Field crop production; a text-book for elementary courses in schools and brief courses in colleges. Agriculture. LEGUMES IN GENERAL 249 for many leguminous crops. Under certain conditions the partnership between the plant and the bacteria, even though the latter are present, is not perfected. When the soil contains nitrogen in large amounts, the plant draws its supply from the soil, and the bacteria lose many of their activities and put forth little effort to penetrate the plant root. It is not usually desirable, therefore, to use nitrogenous fertilizers in connection with leguminous. Fig. 8
. Field crop production; a text-book for elementary courses in schools and brief courses in colleges. Agriculture. LEGUMES IN GENERAL 249 for many leguminous crops. Under certain conditions the partnership between the plant and the bacteria, even though the latter are present, is not perfected. When the soil contains nitrogen in large amounts, the plant draws its supply from the soil, and the bacteria lose many of their activities and put forth little effort to penetrate the plant root. It is not usually desirable, therefore, to use nitrogenous fertilizers in connection with leguminous. Fig. 87. — Applying lime to the land. crops. Sometimes, however, when the soil is especially deficient in this element, a light apphcation of nitrate of soda is beneficial in starting the plants so that they may make suflicient growth for the forming of symbiotic re- lations with the bacteria. The bacteria are distributed over the country in various ways. The most important agencies are wind, water, and the transportation of hay and seeds. The diminutive size of the bacteria makes possible their wide distribution by the wind in connection with small particles of soil, leaves, and other vegetation. The water also carries them long distances in the time of high water. The ship-. 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 Livingston, George. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
