Effects Of Aerated Drip Irrigation On Growth, Yield And Quality Of Cucumber In The Greenhouse

Aerated drip irrigation is a new drip irrigation method,which is perfect for the traditional underground drip irrigation system.Aerated drip irrigation can promote the growth and development of crop plants,and increase yield and quality."Zhong Nong 20"was the test cucumber variety.The depth level of 3 drip irrigation belts was set up:D1(10cm),D2(20cm),D3(30cm);The 3 aeration levels:G1(1 time per 1days),G2(1 time per 2 days),G3(1 time per 3 days);The 3 irrigation quota levels:W1(0.63m~3/Experimental plot),W2(0.53m~3/Experimental plot)and W3(0.43m~3/Experimental plot).The effects of growth,yield and quality of cucumber were studied under aerated drip irrigation in the greenhouse.It provided theoretical basis and technical reference for establishing high yield,high efficiency and water-saving irrigation mode.The study results showed that:(1)Effects of aerated drip irrigation on cucumber morphological indexes and yield.Compared with the control,except the D1W1G1 aerated drip irrigation,the other aerated drip irrigation treatments can promote cucumber growth and yield.The optimal treatment was D3W1G2,and the growth of the stem increased by 104.0%to110.0%compared with the control treatment,and plant height increased by 12.1%to17.0%,leaf area increased by 28.7%to 34.1%,and yield increased by 62.0%to66.4%.And the dry matter accumulation of plants was the highest,which was 24.3%to 28.8%higher than that of the control.(2)Aeration drip irrigation can effectively promote root growth,increased root activity,promoted the growth and development of the upper part of the ground.It increased the chlorophyll content of cucumber leaves and increased the photosynthetic rate.The best treatment for root activity and water use efficiency was D3W3G2.The best treatment for chlorophyll content and Photosynthesis of cucumber leaves was D3W1G2.(3)Aerated drip irrigation can significantly improve the quality of cucumber fruit.The optimal treatment for protein content was D3W1G2.The best treatment for the ascorbic acid content of cucumber fruit was D3W3G2;The best treatment for the total acid content of cucumber fruit was D3W1G2;the best treatment for cucumber fruit soluble solids was D3W1G2.The effect of D3W1G2aeration irrigation on the quality of cucumber fruit was the best.The content of cucumber ascorbic acid,protein and soluble solids were higher,the total acid content was low,and the flavor quality of cucumber fruit was the best.