Show AMOUNT OF WATER IN SOIL while moisture is an absolute necessity ity to plants an excess Is ai as oad bad as an a deficiency dy jr II 11 0 f tho the sevell conditions condl tlona which ID ta alence the growth of crops nono none la to more important than the amount of 0 water in or on tho the eoll soil while ater la in a thin flim aim around tho the toll grains Is an absolute necessity tu to plants an execs ie Is as tad bad as a derc loncy too much water Is detrimental becu because use 1 it makes areas eo so soft that they cannot bo be cultivated when these soft places are long and narrow in form they cut the upland into irregular pieces that cannot be cult cultivated hated conveniently 2 it dalas cultivation particularly in the spring 3 it makee bolls soils cold a decaneo in the spring more than half of tho the heat that the soil rec elvea lb au used to ft arm this unnecessary asater ater b boon beon an fn SO 80 acre field three system systems of tile drainage were necessary this show shows the advantage with which two neighbors can cooperate co operate in putting in a line of tile an ob stacle so trivial as a a line fence should not be permitted to prevent economical drainage the owner of thi this land says that tile pays for itself every year and that expended on tile lias raised the value of the 80 acres 1000 cause its evaporation consumes heat that the soil could othor otherwise lse retain c because its presence in the soil prevents the entrance and downward movement of rainfall which in the spring Is usually warmer than the soil 4 it broads out the oxygen from bet between Neen the soil grains thus hindering the necessary decomposition of or garec matter in the soil 5 it prevents all crop growth where it stands on the soil to a sufficient lelent depth where it stagnates only a few inches from the surface of the soil it prevents healthy root development below that depth the shallow root system thus developed limits the depth from which the plant may get water and with it plant food mater material lal |