Delta Micro Irrigation Final Report

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Table 2: Results of 1999 Kabocba squasb trial investigating tbe influence of sub-surface irrigation and plastic mulch at Rogers Mesa Research Center, Hotchkiss, Colorado. STAGE OF MULCH TYPE OF AVG %BRIX TOTAL MARKETABLE PLANTING TYPE IRRIGATION FRUIT YIELDI ACRE YIELDI ACRE WEIGHT' (LBS)' (LBS)' TRANSPLANT CLEAR DRIP' 3,49ab 14.lb 22007abc 13894bc GREEN DRIP' 3.67ab 15.8a 25188a 16335b BLACK DRIP' 3,81ab 14.1b 23731ab 16335b RED DRIP' 3.64ab 13.9b 26826a 22814a NO DRIP' 3.35b 13.6bc I2632d 9628bcd MULCH NO FURROW 3.79ab 11.6d 14901cd 6888cd MULCH SEED CLEAR DRIP' 4,I2a 13.2cbd 20210abcd I 4492bc GREEN DRIP' 4.03a 13.9b 19670abcd 14166bc BLACK DRIP' 4.16a 13.7cb 17016bcd 13322bc RED DRIP' 4.05a 13,8b I9611abcd I2551bc NO DRIP' 3.14b 13.6cb 6307e 4247d MULCH NO FURROW 4,16a 11.6d 16I54bcd 13261bc MULCH "" '" F-4.81, n- 40, P<.OOOl. F-6.06, n-129, P<.OOOl. F-l1.2, n-35, P<O.OOOI F-7.68, n-40, P<O.OOOl. 'Subsurface drip irrigation. Treatments within the same column followed by the same letter are not significantly different. 2000 Results: Yield data was not taken in 2000 due to lack of irrigation water to complete the last 3 weeks of growth in the squash field. However, irrigation water applied was recorded for the experiment. As was recorded in 1998 and 1999, significantly more water was applied in the furrow irrigated plots. There was a significant difference in the amount of irrigation water applied between the furrow irrigated plots and the drip irrigated plots. The water applied in the subsurface drip irrigated plots was equivalent to 187,544 gallons of water per acre. The amount of water applied in the furrow irrigated plots was the equivalent to 1,461,600 gallons of water per acre. The subsurface drip irrigated plots were watered every three to four days with the average irrigation time of approximately 5.0 hours. The furrow irrigated plots were watered once weekly with the average irrigation time of 15.8 hours. 5