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~ ~Effect of Limited on Yield of Sugar Page 2 Irrigaln Beets . The primary test area was divided into four primary blocks of 54 rows each extending the full length of the field. Each primary block was then sub- divided into the three irrigation treatment areas, each 18 rows wide. Treatments were randomly assigned within each primary block. Plant density replications were unthinned (140-150 plants), 100-110 plants and 67-75 plants per 100 ft. of row. They were randomly established as subtreatment blocks within each water treatment. Each treatment and subtreatment was designed to be comoatib1e with customary farm manaqement nractice and large enough in scale to be harvested and hand],." wi 1.11 1"'IJllldl' 1.,11'I11 "'1lliIJl1ll.nt. Water was del ivered to the field using "Nuflex" flexible plastic pipe. It was then run down each row in the test-demonstration's treatment area. The amount of water applied was measured by timed capture. Because of resource limitations, tail water loss was not recorded. o Eight center rows from each individual water and stand treatment block were harvested using a four-row John Deere Puller on October 7. The yield of each block was individually weighed across the scales at the Great Western Sugar Company's receiving station in Holyoke. Three tare samples were taken from each load and evaluated by G. W. Sugar Company representatives for tare, sugar content, sugar purity and nitrate. The resulting data was developed by Ag-Search, Inc. SO IL MO I STURE AND RAI NFALL The soil profile was estimated to be at field capacity at n1anting, nrovidinq anproximate1y six inches of available water in the profile's top six feet. Area precipitation for the October '79-March '80 period was approximately 4.3 inches., Rainfall during the growing mo.nths was April, 3.81 inches; May, 2.39 inches; June, 2.88 inches; July, 1.39 inches; August, 2.15 inches; and September, 0 inches. Total growing season moisture was 12.62 inches. IRRIGATION A review of the irrigation water supplementation effected at the test- demonstration site is found in Table I.