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该项研究 ,探讨了干旱区盐渍化沙地上 ,苗木类型、定植方式、生存环境等对梨树定植成活率的影响。杜梨苗经耐盐性锻炼后再定植于土壤含盐量≥0.55 %的沙地上 ,其成活率可达88.3 %～93.0 % ,定植的平均有效成本降低16.40元/666.7m2。杜梨苗直接定植比杜梨砧木成品苗的成活率高17.0 %。沟植的树行内土壤全盐量比穴植的低0.62 % ,二者苗木成活率差异明显。梨园行间种植甜菜的苹果梨年生长量为行间土地休闲的1.3倍。在干旱沙区 ,果园行间以种植夏季作物为宜。树行内覆草增加了0～30cm土层的有机质含量 ,促进土壤脱盐。砧木建园、炼苗、沟植、地表覆盖、施有机肥等技术措施是提高干旱区盐渍化沙地苗木成活率的有效措施。
The study discussed the effects of seedling types, planting methods and living environment on the survival rate of pear trees in salinized sandy land of arid lands. After the salt-tolerant training, the survival rate of Du Liao Miao was 88.3% -93.0% and the average effective cost of planting was reduced by 16.40 yuan / 666.7m2. Du Li Miao direct planting more than Pear rootstock seedlings survival rate of 17.0%. The total salt content of soils in the ditch-planting trees was 0.62% lower than that of the point-planting, and the difference of seedling survival rate between the two was obvious. Pear growing between rows of beets growing apples pears annual growth of 1.3 times the amount of land between leisure. In dry sandy areas, it is advisable to grow summer crops between orchards. The mulching of trees in the tree row increased the organic matter content of 0-30 cm soil layer and promoted soil desalination. The measures of improving the survival rate of seedlings in salinized sandy land of arid area are the technical measures such as rootstock garden, tempering, furrow planting, surface covering and organic fertilizer application.