Show irrigating THE SPUD CROP watering and ditching delayed until the plant begins to bloom or the tuber tubers set ditchett and irrigating are delayed as an long as a possible ae the rul rule e Is not to irrigate it if it can be avoided until the potatoes are in bloom or the tubers set which will be within the next fortnight the ditching Is done with a narrow double mold board plow three are atta attached clied and the plow Is run once in each row raw at about the depth of cultivation or ton ten to twelve incura inca this ditching takes the place ot of one tion and it the ground la ls hard or it if the irrigation flidr the ditches to any ex tent the operation Is to repeated so as to maka he ditches deep enough to keep he cie water below the surface of td potato ridges the details of irrigation depend upon the size and contour of the field many of the fields are so arranged that the rows arc rca fourth to one half mile long if the and arid slopes sufficiently and continuously across the field from the supply ditch the problem Is simple at the cation the water is turned into a lateral at the be bead head of the rows A canvas dam Is placed in the head ditch so its to hold the water back and raise it into the rows after the water has run in fa these roas a sufficient length of time to thoroughly wet tho the soil the canvas dam Is pulled out and reet resit farther farler down and the water Is stopped d b blocking block ng the heads of the irrigates i 1 ros ro with soil in large fields tha the water Is run in alternate rows only the head of water depends upon tho the slope and length of at rows it short and the we ine ina steep the bead head must be email small or ahe he stream will reach ho far oleo so quealy that enough batet will not bo be used to thoroughly wet the soil on tho the other fiand and it if the rows ara long and the land nearly level the head lead of at water Is increased so aa as to force it along the row rows faster or d trans transverse verso ditch Is cut through the ot of 11 he field noid so inq a to shorten th distance the water baa has to go flow li it ridged occur in tho the field trana veree ditches are run along at their top and irrigating is done both ways arout 1 when the water has run in the ditches until it seeps through to the row the soil Is sufficiently wet at at the second irrigation the th water Is run in the rows ro s not irrigated the first time |