Effects of Different Irrigation Treatment on Morphological Indexes,Water Consumption and Yield of Maize under Mulch Drip Irrigation

By cultivating maize in field with mulched drip irrigation,a systematic study was conducted to the response of different irrigation treatment on morphological indexes,water consumption,yield and water use efficiency of maize during the growing period.The results indicated that soil water content changed significantly above the 60 cm soil layer.There was proportional relationship among Plant height,node numbers with irrigation quota.MDI-5 treatment had the highest plant height and node numbers.The number of leaves in each treatment was no significant difference.Water consumption of maize in the whole growth period was added with the irrigation quota increasing.Water consumption and its intensity in each growth stage that implemented more irrigation quota were relatively high.Mode coefficients in each growth stage of all treatments were similar.Ear length,ear diameter,ear weight,grain weight and yields were also increased with the increasing amount of irrigation.Regularity of the grains per spike that had no significant difference was not strong among treatments.Finally,compared with yield,water consumption and WUE,it is considered that the irrigation system of MDI-4 was better.The results would provide basis for determining reasonable irrigation,saving water and increasing yield of maize under mulch drip irrigation in Xinjiang areas.