. Proceedings of the American Society of Agronomy . Fig. 32.—Percent nitrogen in grain (wheat) when grown under varying condi-tiohs of soil moisture and fertilization. of the roots was lost. The roots were then thoroughly air dried andweighed. Table XXXIII shows that the moisture content of the soil influencedthe root development more than did the fertilizers or the time of theirapplications. However, the high nitrogen fertilizer when applied to. MORGAN : AVAILABILITY OF PLANT NUTRIENTS. 247 the plants growing in the high moisture at the later stages of growth,has produ

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. Proceedings of the American Society of Agronomy . Fig. 32.—Percent nitrogen in grain (wheat) when grown under varying condi-tiohs of soil moisture and fertilization. of the roots was lost. The roots were then thoroughly air dried andweighed. Table XXXIII shows that the moisture content of the soil influencedthe root development more than did the fertilizers or the time of theirapplications. However, the high nitrogen fertilizer when applied to. MORGAN : AVAILABILITY OF PLANT NUTRIENTS. 247 the plants growing in the high moisture at the later stages of growth,has produced a considerably greater root development than whenapplied at planting time. This same fertilizer when applied to thelow moisture soil has given opposite results. The complete fertilizer tt • •0 ObOE U t u U*3 &.a» b* ei foot ?ts wtaoMDca +» +j *» fx, (k. CO CO • ca 4} . • • 2 ^ ss E aw o,c Au ^O .iSTr g^r^ gC^ StO bOCa tlOC t]ia»« 1 s o o £ £ Per Cent .780 % Moisture.

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