摘要： 在苏北沿海滩涂上采用正交试验设计进行田间试验,研究了不同盐分含量土壤上三角叶滨藜盐肥耦合效应。结果表明:7.5～8.5 g/kg(S2)的土壤盐分和增施100 kg/hm²(N2)、200 kg/hm²(N3)的N肥均有利于三角叶滨藜鲜菜总产量的提高。盐肥交互效应发现,较有利于三角叶滨藜鲜菜总产量增加的处理组合为S2N3,即土壤盐分含量7.5～8.5 g/kg,N肥施用量为200 kg/hm²。在盐土上增施100 kg/hm²(N2)、200 kg/hm²(N3)的N肥可显著提高三角叶滨藜Vc和蛋白质含量。从处理间区别看,影响三角叶滨藜品质的主要因素是N肥,土壤盐分含量次之。

关键词: 盐土, 盐肥效应, 三角叶滨藜, 鲜菜总产量

Abstract: A field experiment based on the orthogonal test design was carried out along the coastal area of north Jiangsu Province to study coupling effect of salt and fertilizer application on Atriplex triangularis in different concentrations salt soil.The results showed that:The total fresh weight of Atriplex triangularis increased when the salt concentration of soil was 7.5-8.5 g/kg(S2) or application of 100 kg/ha(N2) and 200 kg/ha(N3) N fertilizer.Based on the coupling of salt and fertilizer,the best combination that affected the total fresh weight of edible stems production of Atriplex triangularis was S2N3.Vc and protein contents of Atriplex triangularis increased with addition of 100 kg/ha(N2) and 200 kg/ha(N3) N fertilizer.Through the analysis of alternant effects,the factors for the quality was fertilizer of N,then followed by salt concentration of soil.

Key words: Saline soil, Salt and fertilizer coupling, Atriplex triangularis, Total fresh weight

中图分类号: 

• S15