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以金丝小枣、冬枣、梨枣和大瓜枣2年生嫁接苗为试材,设添加0.0%、0.10%、0.30%、0.50%和0.70%NaCl共5种土壤含盐量处理,通过一个生长期的盆栽试验,对4个主栽枣树品种的适应性进行了研究。结果表明,参试枣品种对土壤盐度的适应性存在显著差异:土壤含盐量0.10%,对金丝小枣和大瓜枣生长量、生物量、植株叶片相对保留量的影响轻微,盐害发生时间与等级几无差异,但对梨枣和冬枣的伤害效应明显较重;土壤含盐量达0.30%~0.50%,4个枣树品种的盐害效应均很显著,但对梨枣和冬枣的伤害较金丝小枣和大瓜枣明显更严重;当土壤含盐量达0.70%时,4个枣树品种间的盐害差异显著减小。结果表明,这4个主栽枣树品种的耐盐性有显著差异,经济栽培中分别适应不同盐度的土壤立地。
A total of 5 soil salinity treatments of 0.0%, 0.10%, 0.30%, 0.50% and 0.70% NaCl were added to the two-year-old grafted seedlings of Jizo jujuba, jujube, Growth pot experiments, the jujube varieties of four major adaptability studies. The results showed that there was a significant difference in adaptability of jujube cultivars to soil salinity: 0.10% of soil salt content had little effect on the growth, biomass and the relative retention of plant leaves of Juglans Regia, Harmful effects of pear and jujube were obvious, the salt content of soil reached 0.30% -0.50%, and the damage effects of the four jujube varieties were significant. However, Jujube and jujube were significantly more serious than jujube and jujube. When soil salt content reached 0.70%, the difference of salt damage among four jujube varieties significantly decreased. The results showed that the four main varieties of jujube tree salt tolerance were significantly different, economic cultivation were adapted to different salinities of the soil site.