河南农业科学2011，Vol.40Issue(8)：92-94,115,4.
污水灌溉对大豆幼苗生长和根际微生物的影响
Effect of Sewage Irrigation on Growth of Soybean Seedling and Its Rhizosphere Microorganisms
摘要
Abstract
The sewage from Shaying River Was used to irrigate the potted soybean with ratio of clear water to sewage at 1: 1,2: 1 and 3:1. The growth of soybean seedling and its rhizosphere microorganisms were studied. The results showed that the influence of sewage concentration irrigation on growth seedling of soybean and its rhizosphere microorganisms was obvious. High sewage concentration could inhibit the growth of soybean seedling and bacteria,actionomycetes while stimulate fungi. Along with the sewage concentration decreasing continuously, the growth index and contents of chlorophyll of soybean presented the law of first increasing and then decreasing while relative electric conductivity decreased. The growth index and contents of chlorophyll of soybean was the highest with ratio of water to sewage at 2 : 1. Shoot fresh weight and Chlb reached to maximum,and increased by 127. 76%, 119. 27% compared with CK, respectively. The quantities of bacteria,actionomycetes presented the law of first increasing and then decreasing. The quantities of bacteria and actionomycetes were the highest,3. 10× 107 cfu/g soil, 3. 33 × 105 cfu/g soil respectively with ratio of water to sewage at 1 : 1. When the sewage concentration was proper,the nutrient components of sewage had stimulative effect to the growth of soybean and its rhizosphere microorganisms. The promotion effect of sewage was obvious at a ratio of water to Shaying River sewage of(l : 1) -(2 :1).关键词
污水灌溉/大豆/幼苗生长/微生物区系Key words
Sewage irrigation/ Soybean/ Seedling growth/ Soil microbial population分类
农业科技引用本文复制引用
葛红莲,陈龙..污水灌溉对大豆幼苗生长和根际微生物的影响[J].河南农业科学,2011,40(8):92-94,115,4.基金项目
河南省教育厅项目(2008A180037) （2008A180037）
周口师范学院青年科学基金(zknuqn200604) （zknuqn200604）
