京郊地区微喷条件下不同灌溉量对芹菜产量、品质的影响

为筛选出芹菜种植最佳灌溉量,开展芹菜不同灌溉量试验,为芹菜高产及节水灌溉提供科学依据。试验设置5个处理,分别为:T+5:每667 m2灌溉126 m^3;T+10:每667 m2灌溉132 m^3;T-5:每667 m2灌溉114 m^3;T-10:每667 m^2灌溉108 m^3;对照:每667 m2灌溉120 m^3。试验结果表明,T-5处理在株高、茎粗、叶柄数等植株长势均优于对照,干物质质量较对照增加13.7%;芹菜产量最高,为5669.50 kg,产量、产值较对照提高16.28%;T-5处理在节水5%的情况下,纯收益高于对照16.67%。综上所述,每667 m2灌溉114 m^3高产且节水,是本试验处理中经济效益较好的灌溉处理,适宜指导本地区大棚芹菜微喷灌溉栽培。

Effects of different irrigation quantity on celery yield and quality by micro-spraying conditions in suburban areas of Beijing

In order to select the best irrigation amount of celery planting,experiments on different irrigation amounts by micro-spraying celery were carried out to provide a scientific basis for guiding high-yield of celery and water-saving irrigation.Five treatments were set up respectively:T+5:126 m^3 per 667 m2;T+10:132 m^3 per 667 m2;T-5:114 m^3 per 667 m2;T-10:108 m^3 per 667 m^2;Control:120 m^3 per 667 m2.The results showed that the irrigation amount of 114 m^3 per 667 m2(T-5)were better than those of the control in plant height,stem diameter and petiole number,and the weight of dry matter increased by 13.7%compared with the control.The celery yield was the highest,which was 5669.50 kg per 667 m2.The yield and output value were increased by 16.28%respectively compared with the control.The net income was 16.67%higher than that of the control under the condition of saving water by 5%.In summary,the irrigation amount of 114 m^3 per 667 m2 was a high-yield and water-saving irrigation treatment with better economic benefits in this test treatment,which was suitable for guiding the micro-spray irrigation cultivation of celery in greenhouses in this region.