土壤基质势调控对温室滴灌番茄土壤水分分布和产量的影响
土壤基质势调控对温室滴灌番茄土壤水分分布和产量的影响
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WAN Shuqin , YAN Zhenkun , KANG Yuehu , YUAN Baozhong , JIAO Yanping and SONG, Jia
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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【目的】指导设施蔬菜生产中科学合理地利用滴灌技术进行灌溉。【方法】采用小区试验的方法,以冬春茬番茄为研究对象,布置了7个不同土壤基质势阈值的试验,在番茄开花坐果期和结果期分别控制滴头正下方20 cm深度土壤基质势在-15和-15 kPa(S1)、-15和-30 kPa(S2)、-15和-45 kPa(S3)、-25和-25 kPa(S4)、-30和-15 kPa(S5)、-30和-30 kPa(S6)以及-30和-45 kPa(S7),研究了日光温室滴灌土壤基质势调控下土壤水分随时间变化及空间分布的规律,以及番茄产量、畸形果率和灌溉水利用效率等。【结果】①控制滴头正下方20 cm深度土壤基质势可以明显影响0~100 cm深度土壤水分状况。②在番茄开花坐果期,当土壤基质势阈值控制在-30 kP...
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土壤基质势调控对温室滴灌番茄土壤水分分布和产量的影响
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TN_cdi_wanfang_journals_ggps201905001
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_ggps201905001
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1672-3317
DOI
10.13522/j.cnki.ggps.20180360