Show ap R citation NECESSARY A wise rotation of crops is absolutely ute y necessary it if farmers are to keep their land up to their maximum producing capacity in the opinion of dr george R hll director of the school ot of agriculture utah agrical tural college dr di hill says one ot of the paramount problems confronting tho the farmer this year Is tho the pro problem flem of so planning his crops that lie he bill be able to get good yields throughout with intensive cultivation have come numerous plant diseases and insect pests that have flave established themselves in n the soil each crop has its particular diseases and pests it if the same crop be planted on the same plot year after year the crop yield will steadily decrease owing to the continued growth in ft virulence of the disease or in the numbers of the pest to keep tile the yield up lip the soils must bee be treed freed from these diseases and la insects sects this can be done by literally starving them out rotation of 0 crops will accomplish this dedred result it if the farmer has a carefully planned cycle ot of crops no one insect or disease can become established in the soil with a constantly changing crop the old pests find themselves without food tle the more crops in this cycle the better as long as I 1 our soil is s adapted to all the crops crops groan grown in belgium so many crops enter into the crop rotation that flax for instance Is planted by each farmer about once in every fifteen years the farmer should so divide hs land that lie he Is growing part of it to each of bf Q the o essential crops then by shit ting tho crops along each year a rotation can be effected that wll will keei kaei pr production product 0 lon at a higher lever and the pests pest sand and insects will be kept at a |