. Proceedings of the American Society of Agronomy . ^ Grams 18501350850350 235018501350850350 235018501350 J 850350 Fig. 22.—Production, in grams, of dry matter in plants (oats) grown in smallwire baskets under varying conditions of soil moisture and fertilization. percent. In no case, eitker in the pot or basket tests, have thefertilizers attained their maximum efficiency in the percent mois- morgan: availability of plant nutrients. 219 ture series. In one case this has been reached in low soil moisture andin another in medium soil moisture. However, the pot test is t


. Proceedings of the American Society of Agronomy . ^ Grams 18501350850350 235018501350850350 235018501350 J 850350 Fig. 22.—Production, in grams, of dry matter in plants (oats) grown in smallwire baskets under varying conditions of soil moisture and fertilization. percent. In no case, eitker in the pot or basket tests, have thefertilizers attained their maximum efficiency in the percent mois- morgan: availability of plant nutrients. 219 ture series. In one case this has been reached in low soil moisture andin another in medium soil moisture. However, the pot test is themore reliable by far, as here the plants were grown practically tomaturity. Where the plants grew to maturity the effects of the min-eral fertilizers varied quite consistently with the moisture content ofthe soil, gradually decreasing in efficiency with the rise in moistureuntil an actual decreased yield was obtained in the high moisture. Where the plants grew for only three weeks the mineral fertilizersaffected the growth of plants very much alike in both low


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