. Fig. 2.—Money value of the reductions, due to disease, in cereal crop yields in Illinois, based on the estimates available for the period 1926-1937. Others, that attack only portions of the plants, such as roots, stems or leaf tissues, so weaken the plants that they produce less grain. Plants with roots attacked by rot fungi or with a portion of the leaf tissue destroyed usually produce grain of inferior quality, which brings a lower price than first quality grain. If this poor grain is kept for seed, a reduced stand, poor yield and inferior grain may be expected the following season. A redu
. Fig. 2.—Money value of the reductions, due to disease, in cereal crop yields in Illinois, based on the estimates available for the period 1926-1937. Others, that attack only portions of the plants, such as roots, stems or leaf tissues, so weaken the plants that they produce less grain. Plants with roots attacked by rot fungi or with a portion of the leaf tissue destroyed usually produce grain of inferior quality, which brings a lower price than first quality grain. If this poor grain is kept for seed, a reduced stand, poor yield and inferior grain may be expected the following season. A reduc- tion in yield, together with an increase in the amount of seed required to produce a good stand, at once increases the cost of production and decreases the net returns a farmer may expect from his grain crop. All of these factors may combine eventually to lower the value of the land, especially if the principal damage is due to a disease which remains viable in the soil from year to year.
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Keywords: ., bookcentury1900, bookcolle, bookpublisherurbana, booksubjectgrain
