Effects of different irrigation water on soil physicochemical property,yield and quality of plateau summer celery
Using the celery variety Wentula as the experimental material,this study investigated the effects of different irrigation sources,namely Taoyuan water and shallow groundwater,on soil bulk density,soil temperature,and summer celery yield and quality.The results showed that the irrigation water quality had a significant impact on the soil bulk density within the cultivated layer(0-30 cm),with the largest increase in soil bulk density observed after irrigation with shallow groundwater.During the growth period of summer celery,soil temperature changes are greatly influenced by irrigation water quality and temperature.Among them,the average soil temperature during the growth period after irrigation with Taoyuan water is 21.4 ℃,which is 0.7 ℃ higher than that under groundwater irrigation;Under the same irrigation system throughout the entire growth period,due to the high content of organic matter such as nitrogen and phosphorus in ground-water,the irrigation treatment resulted in the highest yield of summer celery,reaching 135 870 kg·hm-2,an increase of 21 005 kg·hm-2 compared to irrigation with Taoyuan water.However,the crude fiber content of celery was high,and the edible quality was reduced.In summary,using water with low mineralization to irrigate celery can maintain good physical and chemical properties of the soil,significantly increase the average surface soil temperature during the germination period of celery,facilitate the respiration and growth of celery roots,facilitate the formation of stems,and significantly increase the proportion of celery stem fresh mass,reaching 80.79％.
Plateau summer celeryIrrigation water qualitySoil bulk densitySoil temperatureYieldQuality
万方数据
维普
