保水剂与养分交互作用对茄子幼苗生长的影响  

Study on the Interaction Effects of Water Retaining Gel and Fertilizers of Eggplant Seedling

作　　者：曹云娥[1] 高艳明[1] 李建设[1] 

机构地区：[1]宁夏大学农学院,宁夏银川750021

出　　处：《北方园艺》2009年第10期54-57,共4页Northern Horticulture

基　　金："十一五"国家科技支撑计划资助项目(2007BAD57B04)

摘　　要：研究了不同保水剂浓度与不同的全营养液肥浓度的交互条件下对茄子育苗生长的影响。结果表明:基质持水量随着保水剂浓度的增加而增加,但随养分供应浓度的增加,基质持水量并未随着保水剂浓度的增加而呈直线上升。基质EC值随养分浓度增加而极显著增加(P=0.01),随保水剂浓度增加而显著下降(P=0.05)。基质pH值随着养分浓度的变化范围较小(P<0.05),随着保水剂浓度的变化而发生极显著变化(P=0.01),表现为随着保水剂浓度的增加,基质pH值增加。通过对茄子幼苗的形态指标测定,表明在每升基质中加入2 g全营养肥,茄子幼苗生长较为茁壮;保水剂浓度在每升基质中加入2 g较为适宜茄子幼苗生长。在养分浓度和保水剂浓度适中的条件下,两者的交互作用可提高茄子幼苗的根系活力和叶片的叶绿素含量。综合各因素认为,A2B2处理为最优处理,即全营养肥2 g/L,保水剂浓度2 g/L时,较适合茄子幼苗生长。Through studied on the interaction effects of water retaining gel and full nutrition fertilizers of eggplant seedling, it showed that： Among the days of sowing, water content of substrate was always increasing by the amount of sky gel water retaining gel increased, but it showed not the exactly positive linear correlation when the content of fertilizers increased, The water retention capacity preserved showed a little bit of declination when the content of fertilizers increased. The EC of substrate was increasing while the content of fertilizers increased（P=0. 01）, meanwhile pH of substrate was declining while the content of fertilizers increased（P〈0. 05）and pH of substrate was increasing while the content of water retaining gel increased（P=0. 01）, Though studied on the different index of eggplant seedling, it showed that： the treatment of 2 g/L full nutrition fertilizers and 2 g/L sky gel water retaining gel was the best, the interaction of them helped the growing of eggplant seedling.

关 键 词：保水剂 全营养肥 茄子育苗 

分 类 号：S641.104.3[农业科学—蔬菜学]