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通过田间灌溉试验获得的分室模型表明,随着灌溉水中NaCl含量的增加,土壤水溶性Cl-、Na+呈直线增加。Cl-增加的斜率明显大于Na+。Ca2+和Mg2+亦增加,矿化灌溉水中96~99%的Na+,97~99%的Cl-存留在土壤中,进入作物体中则很少。在小麦中,Na+、Cl-主要分布于茎、鞘中,占吸入总量的65%左右,进入根和籽粒的Na+占8~10%,Cl-仅占3~6%。在甜菜中,Na+、Cl-主要集中于叶和枯叶,占吸入总量的90%以上,根中Na+和Cl-均小于10%。
The compartment model obtained from field irrigation experiments showed that the water-soluble Cl- and Na + increased linearly with the increase of NaCl in irrigation water. The slope of Cl-increase is significantly greater than Na +. Ca2 + and Mg2 + also increased. 96-99% of Na + and 97-99% of Cl- in mineralized irrigation water were retained in the soil, and few were found in the crop. In wheat, Na + and Cl- are mainly distributed in stems and sheaths, accounting for about 65% of the total amount of inhaled rice, 8-10% of Na + entering roots and grains, and 3-6% of Cl-. In sugar beet, Na + and Cl- mainly concentrate on leaves and dead leaves, accounting for more than 90% of the total amount of inhalation. Na + and Cl- in roots are less than 10%.