OCR Text |
Show Plant Food. Plant food in the soil Is largely In an unfavorable condition. Before the potach, phosphorus and nitrogen become be-come available the soil must pass through the stage of disintegration disintegra-tion and chemical change which can take place only under favorable conditions. con-ditions. There must be present moisture, mois-ture, heat and air. These are large ly controlled by cultivation and climatic cli-matic conditions. The method of cultivation cul-tivation which will bring about these conditions is the one that is best for the farmer who is handling the land. |