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微咸水連續(xù)灌溉對冬小麥產(chǎn)量和土壤理化性質(zhì)的影響
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Saline Water Continuous Irrigation on Winter Wheat Yield and Soil Physicochemical Property
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    摘要:

    為了合理開發(fā)和利用黃淮海平原淺層地下微咸水,,2003~2005年在中科院河北南皮生態(tài)實驗站連續(xù)以3g/L的微咸水對冬小麥進行田間灌溉試驗,分析了微咸水灌溉對土壤含鹽量,、土壤溶液鹽分含量,、電導率以及冬小麥產(chǎn)量的長期影響,,為建立華北地區(qū)冬小麥微咸水灌溉的合理灌溉制度和微咸水的合理利用提供理論依據(jù),。結(jié)果表明,,連續(xù)利用3g/L的微咸水灌溉,,會造成土壤表層鹽分的累積,,尤其在降水量偏少的年度會使作物受到鹽分脅迫,。微咸水灌溉比旱作增產(chǎn),灌溉三次比灌溉兩次產(chǎn)量高,,降水量偏少的年份應盡量避免連續(xù)用微咸水進行灌溉,。

    Abstract:

    For the sake of rational exploitation and utilization of shallow layer underground saline water in Huang Huai Hai Plain, through the serial saline water farm irrigation experiment during the years of 2003~2005 at Nanpi Ecological Experimental Station of Chinese Academy of Science in Hebei Province, irrigating winter wheat with saline water of 3g/L, the long term effect of soil salinity, soil solution content, electric conductivity as well as winter wheat yield irrigated with saline water were analyzed. The objective of above works is to establish a rational saline water irrigation program of winter wheat in North China and to supply a theoretical basis for utilization of saline water. The results showed that the salt was cumulated on upper soil layer when the saline water of 3g/L mineralization degree was utilized continuously, and plant would be subjected to salt stress, especially, in the rainfall deflection crop year. Yield will increase when irrigated with saline water comparing with that of dry farming and the yield is higher with three times irrigations than that of twice. The repeated saline water irrigations should be avoid if the precipitation is small.

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吳忠東,王全九.微咸水連續(xù)灌溉對冬小麥產(chǎn)量和土壤理化性質(zhì)的影響[J].農(nóng)業(yè)機械學報,2010,41(9):36-43. Saline Water Continuous Irrigation on Winter Wheat Yield and Soil Physicochemical Property[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(9):36-43.

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