稻油复种免耕条件下杂交油菜养分吸收、分配及转移特性研究  

Study on Characteristics of Nutrient Uptake, Distribution and Transference of Oilseed Rape under Condition of Rice and Oilseed Rape Multiple Cropping and No Tillage

作　　者：田晋文[1] 冯跃华[1] 范乐乐[1] 潘剑[1] 潘兴书[1] 宋碧[1] 

机构地区：[1]贵州大学农学院,贵州贵阳550025

出　　处：《农业现代化研究》2010年第6期750-753,共4页Research of Agricultural Modernization

基　　金：贵州省科学技术基金项目[编号:黔科合J字(2007)2069];贵州大学人才引进科研基金项目

摘　　要：以杂交油菜贵杂5号为材料,研究了稻油复种免耕条件下杂交油菜养分吸收、分配及转移特性。结果表明:在现蕾期,油菜免耕移栽N、P、K吸收量比油菜翻耕移栽分别高31.2%、2.4%、60.1%,而在初花期和终花期油菜免耕移栽略低于油菜翻耕移栽,但均未达到5%的显著差异水平。在苗期免耕移栽油菜的N、P、K积累量比翻耕移栽油菜分别高14.9%、27.5%、26.8%,在角果成熟期,免耕移栽油菜N、P积累量分别比翻耕移栽油菜高3.8%、53.1%。油菜茎枝中的N、P、K积累量、转移率为油菜免耕移栽比油菜翻耕移栽低,但未达5%的显著差异水平。油菜对N、P、K吸收利用率表现为油菜免耕移栽比油菜翻耕移栽低,亦未达到5%的差异显著水平。With hybrid oilseed rape Guiza-5 as materials, nutrient uptake, distribution and transference characteristics of hybrid oilseed rape were studied under the condition of rice-oilseed rape multiple cropping and no tillage. The results showed that： N, P, K uptake of oilseed rape of zero tillage and transplanting （ZT-RT） were 31.2%, 2.4%, 60.1% separately higher than those of conventional tillage and transplanting （CT-RT） in squaring period, while N, P, K uptake of oilseed rape of ZT-RT oilseed rape were lower than those of CT-RT in initial flowering stage and final flowering stage, and also the differences were not up to significant level of 5%. N, P, K accumulation of ZT-RT oilseed rape were 14.9%, 27.5%, 26.8% separately higher than those of CT-RT in the seedling stage. In the pods maturity, N, P accumulation of ZT-RT oilseed rape were 3.8%, 53.1% separately higher than those of CT-RT too. N, P, K accumulation and transference of stem and branch of ZT-RT oilseed rape was lower than those of CT-RT, however, the difference was not up to significant level of 5%. Absorption and utilization rate of ZT-RT oilseed rape were lower than those of CT-RT, but the difference was not significant between ZT-RT and CT-RT.

关 键 词：复种 免耕 杂交油菜 养分吸收 养分分配 养分转移 

分 类 号：S565.4[农业科学—作物学]