| Show WHEN SOILS LOSE THE WATER R two third thirds in first three day days after cultivation con O 0 avs moisture Mol turo nil quantity of water sucker out 61 the foil by planta plants in any one day ID in depends upon many con unions the drier the atmosphere her e and the greater the amelus of it eun n abdrin and the warmer the day da the greater will be the amount of batet taken from the eoll soil more afore important than any of these those factora factors in causing a loss of foil soil moisture te in the amount ol 01 water found in the eoll from wet soils more water will be lost than from dry onea ones both from direct evaporation from the eoll soil and from the greater amount passed through the plants consequently immedi abely after at irrigation much morn morr water le to lost tuan luan one or two weeks later lister it 16 baa has been found that of the loht during the first two weeks after irrigation 31 per cent went the first three days 29 per cent the next four 23 per cent the next three and 17 per cent the last four days thus thull nearly one third of the wate water was war lost the first fret three days and more than one half the first week abic it Is impossible in practice to apply water so as to keep the right amount in the soli soil all the time it Is necessary to learn methods by which the evaporation from wet soils can be diminished careful cultivation or stirring of vt the top soil no doubt doub tends to conserve the soil moisture it Is clear however that it cultivation Is to have much value in pro pre venting the loss of soil water it should be put into operation as soon BS an possible after irrigation that is as soon aa an the soil Is dry enough to make cultivation possible could the farmers see the thousands of tons of fly off water that arise as vapor from the coil soil the first few days after irrigation they would certainly do all in their power to stop the waste it must be remembered in Is this connect tion that the quantity of water taken from a wet or moderately dry soil on which plants are growing Is con sider ably larger than the amount evaporated from an equal area of free water surface |
