不同培肥方法对稻改旱后土壤盐分及棉花生长发育的影响  

Effects of Different Fertilization Methods on Soil Salinity and Cotton Development after Paddy to Dryland

作　　者：孙昌禹[1] 王秀萍[1] 鲁雪林[1] 刘雅辉[1] 

机构地区：[1]河北农林科学院滨海农业科学研究所,河北唐海063200

出　　处：《安徽农业科学》2009年第9期4094-4095,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为盐碱地棉花的高产栽培提供理论依据。[方法]以冀棉杂交王为试材,设置5种(①有机肥、②常规施肥、③常规施肥、④有机肥+常规施肥②、⑤有机肥+常规施肥③)施肥处理,以不施肥处理为对照,分别在播种前、出苗后3、叶期、现蕾期测定耕层土壤盐分;在现蕾初期调查株高与成苗率。[结果]常规施肥的2个处理对土壤耕层的盐分影响很小,土壤盐分变化与对照基本一致。施用有机肥的处理,土壤盐分呈先下降后上升的趋势,且上升速度较慢。在现蕾期,有机肥处理的棉花株高与成苗率分别较对照高20.29%和19.14%,较常规施肥处理高17.63%和13.91%。[结论]施用有机肥可延缓土壤盐分升高,提高棉花成苗率,有助于棉苗生长发育。[Objective] The aim was to provide the theoretical basis for high yield cultivation of cotton in saline land.[Method]With Jimian zajiaowang as the material and treatment without fertilizer as CK,5 kinds of fertilizer treatments（organic fertilizer①,common fertilization ②,common fertilization ③ organic fertilizer ＋ common fertilization ②,organic fertilizer＋ common fertilization ③） were designed.And the soil salinity was investigated at pre-sowing,post-seedling,3-leaf stage and budding stage, , and the plant height and seedling rate were investigated at budding stage. [ Result]The 2 common fertilizer treatments had little effect on soil salinity, and the change of soil salinity was similar with that of CK. In treatment with organic fertilizer, the soil salinity showed first decreasing and then rising trend, but its rising speed was slow. At budding stage, the plant height and seedling rate of cotton in treat- ment with organic fertilizer were 20.29% and 19.14% higher than those ofCK resp, and were 17.63% and 13.91% higher than those of commun fertilization treatments resp. [Conclusion] Application of organic fertilizer could delay the rise of soil salinity, increased seedling rate of cotton and was help to the development of cotton seedling.

关 键 词：培肥方法 稻改旱 土壤盐分 棉花 

分 类 号：S562[农业科学—作物学]