刘孟雨, 但野利秋, 刘会灵. 苜蓿改良的盐碱土壤施肥对小麦的效应研究--II.对小麦生理特性的影响[J]. 中国生态农业学报(中英文), 1998, 6(4): 30-32.
引用本文: 刘孟雨, 但野利秋, 刘会灵. 苜蓿改良的盐碱土壤施肥对小麦的效应研究--II.对小麦生理特性的影响[J]. 中国生态农业学报(中英文), 1998, 6(4): 30-32.
Liu Mengyu, Toshiaki Tadano, Liu Huiling. Effet of fertilizer on wheat in saline soil improved by alfafa--II. Its effect on some physiological characters[J]. Chinese Journal of Eco-Agriculture, 1998, 6(4): 30-32.
Citation: Liu Mengyu, Toshiaki Tadano, Liu Huiling. Effet of fertilizer on wheat in saline soil improved by alfafa--II. Its effect on some physiological characters[J]. Chinese Journal of Eco-Agriculture, 1998, 6(4): 30-32.

苜蓿改良的盐碱土壤施肥对小麦的效应研究--II.对小麦生理特性的影响

Effet of fertilizer on wheat in saline soil improved by alfafa--II. Its effect on some physiological characters

  • 摘要: 盐栽试验结果表明,苜蓿改良的盐碱土壤施N肥能使小麦旗叶叶水势升高,叶片水分保持较好,叶绿素总含量提高l3%~80%(以叶绿素b为主),叶片光合速率和蒸腾强度增加,蒸腾效率提高,施N肥配合补P肥效果更好,这些变化构成了在该类地区施N肥补P肥增产的生理基础。

     

    Abstract: The results from pot experiments show that N can increase water potentml of flag leaf by about 2.0 bars,chlorophyll content by l3%~8O%(mainly chlorophyll B),photosyn-thesis rate by about 26%,transpiration rate by about 14%,transpiration efficiency by lO% in saline soil improved by alfafa in Heilonggang Region,Hebei.These effects are more obvious if N and P are applied.These changes of physiological characters are the physiological base for increasing yield by applying N and P in this region.

     

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